MICRO-AMP System. Product Line Specifications. Remote sensors, modulated amplifiers, and logic modules

Transcription

1 MRO-AMP ystem Remote sensors, modulated amplifiers, and logic modules Product ine pecifications A versatile system of compact, high-performance remote sensors modulated amplifiers, and logic modules Remote sensors for opposed, retro, diffuse, convergent, and fixed-field sensing modes, in a variety of sizes, shapes, and housing styles to suit nearly any remote sensing application Rugged, epoxy-encapsulated amplifier modules; also logic modules for one-shot, 4-input gate (AD, OR, OR), latch, and delay functions Plug-in amplifier and logic modules are track mountable for ease of installation and replacement (helpful in large systems) All modules have an output indicator for system monitoring; amplifier modules include Banner's exclusive AD indicator system Printed in UA P/ 32885

2 MRO-AMP ystem The Banner MRO-AMP ystem is a family of miniature dc modulated photoelectric amplifiers and logic modules which offer the same sensing performance as larger, conventional modules. They are the smallest photoelectric control modules ever built, and can fit easily into tight areas of machines or control panels. Built around the concept of an /O module, they are the perfect photoelectric control device for use with computers or programmable logic controllers (Ps). Multiple modules stack neatly on -inch (25mm) centers in PV mounting track, taking only a fraction of the control panel space required by standard photoelectric modules. Dimension Drawing, MRO-AMP Modules (except MP3) with R8 Wiring ocket Model MA3 is a complete dc-powered modulated amplifier designed for use with Banner's P eries of miniature remote sensors. Model MA3-4 is a higher-gain amplifier which is used with Banner's complement of high-performance modulated remote sensors. Building-block style control logic may be added to a system with a selection of MRO-AMP logic modules. Model MP3 is similar to amplifier model MA3, except that it is specifically designed for P board mounting in OM sensing applications. MRO-AMP modules may be mounted and wired using the optional model R8 socket (shown in the drawing at right) or they may be mounted directly to a printed circuit board (see Accessories, p. 2). MRO-AMP module pin configuration Module Model MA3 MA3A Modulated Amplifier Y Y ogic Functions Used with (nput) Full Description O (O/OFF) O (O/OFF) Banner P eries miniature modulated remote sensors Banner PFF modulated fixed-field sensor ee pages 3-4 ee page 8 MA3-4 Y O (O/OFF) Banner high-performance remote sensors ee pages 5- MA4-2 MA4 MA4 MA5 MRO-AMP logic modules are designed to accept the output signal from a MRO-AMP amplifier and process that signal for a required logic function. MRO- AMP logic modules themselves contain no amplifier. O-OT 4-input logic gate: AD, OR, -OR atch or alternate-action flip-flop O-delay or OFF-delay witches, contacts, or P (current sinking) output of dc sensors or amplifiers, including: Banner MUT-BAM, MA-BAM, VAU- BAM, M-BAM, and OO-BAM sensors; plus MA-AMP and MRO-AMP modules. ee page ee page 2 ee page 3 ee page 4 MP3 (for printed circuit board mounting) Y O (O/OFF) Banner P eries miniature modulated remote sensors ee pages 5-6, 8 2

3 MRO-AMP ystem MA3 and MA3P Modulated Amplifiers Banner MRO-AMP modules MA3 and MA3P are modulated amplifiers designed for use with P eries miniature remote sensors. Miniature photoelectric sensors have traditionally been used as non-modulated devices with very limited response. MRO-AMP amplifiers have a specially-engineered modulated design which brings about a dramatic improvement in the optical performance of miniature remote sensors. MRO-AMP modules are powered by to 3 volts dc, and feature the patented Banner Alignment ndicator Device (AD ) signal strength D. ensor sensitivity is adjustable via a top-mounted A potentiometer. Model MA3 has complementary current sinking (P) outputs; model MA3P has complementary current sourcing (PP) outputs. ircuitry is epoxy-encapsulated and enclosed in a tough molded VAO housing. onnections may be made to the MRO-AMP via the optional R8 socket/wiring base, or the module may be mounted directly to a printed circuit board (page 2). The small size and the slim ribbon-style connecting cable of P eries sensors make it possible to use photoelectrics in many situations previously thought to be impractical or even impossible. MRO-AMP Model MA3 pecifications UPPY VOTA: to 3V dc at less than 2 milliamps (exclusive of load); % maximum ripple. OUTPUT OFURATO: two open-collector P (current sinking) transistor (solid-state) switches; one normally open (light operate) and one normally closed (dark operate); 5 milliamps maximum, each output. aturation voltage less than.5v dc at milliamp load. Off-state leakage current less than microamp. RPO PD: millisecond O and OFF. RPATABTY:.3 millisecond. OR AD T: 5 feet (4,5 m) maximum. Functional chematic, MA3 Amplifier ADJUTMT: A adjustment (single-turn potentiometer; adjust with small flat-blade screwdriver). DATOR: exclusive Banner Alignment ndicator Device (AD ) system lights a red D indicator whenever the sensor "sees" its own modulated light source, and pulses at a rate proportional to the strength of the received light signal. OTRUTO*: totally encapsulated plug-in package with molded VAO housing. old-flashed connection pins. OPRAT TMPRATUR: to +7 degrees (32 to +58 degrees F). *A Dimension Drawing appears on page 2. ookup Diagram, MA3 Amplifier Model MA3P: PP (current sourcing) output Model MA3P has the same specifications and performance as the MA3 amplifier, except that the MA3P has complementary PP outputs in place of the MA3's P configuration. OUTPUT: two PP transistors, complementary outputs; one normally open (light operate) and one normally closed (dark operate). 5 milliamps maximum, each output. aturation voltage is less than V dc at milliamps. Off-state leakage current is less than microamp. ookup Diagram, MA3P Amplifier 3

4 ensors for use with MA3 and MA3P Modulated Amplifiers Temperature range for all miniature modulated remote sensors is to 7 degrees (+32 to 58 degrees F). ensors are epoxy-encapsulated and optics are hermetically sealed. Models/Dimensions xcess ain Beam Pattern P & PR Range: 8 inches (2cm) Beam: infrared, 88nm ffective beam:.5 inch (,3mm diameter) OPPOD Mode ensors P and PR miniature opposed sensors have a slim right-angle design which allows them to be mounted in very tight locations. The thin, flexible ribbon cable which exits from one corner may be run in any direction away from the sensing point. The P and R have a wide beam angle for forgiving lineof-sight alignment. Alignment is easily made exact (and monitored) using the AD D on the MRO-AMP module. able (all 6-foot lengths): P: 2-wire ribbon cable (white, green). PR: 3-wire ribbon cable (red, black, yellow). PD, DB,, F: 5-wire ribbon cable (white, green, red, black, yellow). ee hookup drawing. A P/R. DTA P/R OPPOD DTA -- PD PDB DFFU Mode ensors Models PD and PDB are general-purpose miniature diffuse sensors which detect the reflection of their own light from the surface of an object. The PD is a right-angle design which is generally held in place using a #4 (3mm) screw. The PDB ("B" = Barrel) is an in-line threaded barrel which typically mounts through a 3/8" (mm) diameter hole using the lock nuts which are supplied. The optical response characteristics of these two sensors are identical. A PD, PDB Range based on 9% reflectance white test card PD, DB.. DTA DTA TO 9% WT TT ARD-- P PF OVRT Mode ensors Models P and F are ideally suited to applications where depth of field is critical. The emitter and receiver are both directed at a point. inch (2,5mm) ahead of the front surface. An aperture is included which, when attached, narrows the depth of field (see curves, below). This is particularly useful when it is necessary to detect an object while ignoring another object or a surface just a fraction of an inch farther away. The high excess gain at the focus allows detection of objects of low reflectivity. The P and F differ only in housing style. Model P is for general application. Model PF is used where a narrow profile is important for mounting. A P, PF (Range based on 9% reflectance white test card) without aperture with aperture.. DTA P, F with aperture without aperture DTA TO 9% WT TT ARD-- 4

5 MRO-AMP ystem MA3-4 and MA3-4P Modulated Amplifiers Banner MRO-AMP module models MA3-4 and MA3-4P are modulated amplifiers designed for use with the popular family of Banner high-performance remote sensors. When these modulated remote sensors are used with the MA3-4 or MA3-4P, their optical response is the same as when they are used with the larger MA-AMP M eries modules. These modules are powered by to 3 volts dc. They feature the patented Banner Alignment ndicator Device (AD ) signal strength D. ensor sensitivity is adjustable via a top-mounted A potentiometer. ircuitry is epoxy-encapsulated and protected by a tough molded VAO housing. onnections may be made to these modules via the optional R8 socket/wiring base, or the module may be mounted directly to a printed circuit board. The sensors which are used with these modules are totally encapsulated for durability and infinite life. Wide beam angles eliminate alignment problems, and high optical gain permits reliable sensing under severe conditions. MRO-AMP MA3-4 pecifications UPPY VOTA: to 3V dc at less than 2 milliamps (exclusive of load); % maximum ripple. OUTPUT OFURATO: two open-collector P (current sinking) transistor (solid-state) switches; one normally-open (light operate) and one normally closed (dark operate). 5 milliamps maximum, each output. aturation voltage less than.5v dc at milliamp load. Off-state leakage current less than microamp. RPO PD: millisecond O and OFF. RPATABTY:.3 millisecond. OR AD T: 3 feet (9m) maximum. Functional chematic, MA3-4 ADJUTMT: A adjustment (single-turn potentiometer; adjust with small flat-blade screwdriver). DATOR: exclusive Banner Alignment ndicator Device (AD ) system lights a red D indicator whenever the sensor "sees" its own modulated light source, and pulses at a rate proportional to the strength of the received light signal. OTRUTO: totally encapsulated plug-in package with molded VAO housing. old-flashed connection pins. OPRAT TMPRATUR: -4 to +7 degrees (-4 to +58 degrees F). ookup Diagram, MA3-4 Model MA3-4P: PP (current sourcing) output Model MA3-4P has the same specifications and performance as the MA3-4 amplifier, except that the MA3-4P has complementary PP outputs in place of the MA3-4's P configuration. OUTPUT: two PP transistors, complementary outputs; one normally open (light operate) and one normally closed (dark operate). 5 milliamps maximum, each output. aturation voltage less than V dc at milliamps. Off-state leakage current less than microamp. ookup Diagram, MA3-4P 5

6 ensors for use with MA3-4 and MA3-4P Modulated Amplifiers ensors are epoxy-encapsulated and optics are hermetically sealed. ables are 6 -/2 feet (2m) long. 3-foot (9m) cables available by special order. A MOD Range: 8 feet (2,4m) Beam: infrared, 88nm ffective Beam:.4 inch (3,6mm) dia. PT models are receivers R models are emitters OPPOD Mode Beam Pattern R2 & PT2 R25 & PT25 R3 & PT3 R4 & PT4 Temp. range: -4 to + ousing material: black Delrin Models/Dimensions Temp. range: -4 to + ousing material: black Delrin A xcess ain R/PT2, 25, 3, & 4. FT FT FT FT DTA Temp. range: -4 to +8 ousing material: black VAO R/PT2, 25, 3, OPPOD DTA--FT Temp. range: -4 to + ousing material: anod. aluminum R/PT2, 25, 3, and 4 opposed mode remote sensors are identical electronically and optically, and differ only in their housings. All are totally epoxy-encapsulated and use hermetically sealed glass lenses to eliminate condensation inside the optical chamber. These sensors may be washed down without damage. Operating temperature is determined by the type of cable used (see specifications above). All models have a wide beam angle for forgiving line-of-sight alignment. At the same time, the effective beam of each pair is only /8 inch, allowing small-profile resolution and reliable response to fast-moving objects. R models are emitters, and PT models are receivers. R2 & PT2: this is a right-angle design which mounts through a 7/6 inch (2mm) diameter hole, using the steel jam nut which is included. This pair is used most commonly on small conveyors when it is desireable to run the cable directly down to a wireway. R25 & PT25: these sensors feature a /4 inch (6,4mm) diameter smooth barrel design, and are usually held in place in a clearance hole with a small set-screw. Optional mounting blocks (shown below) are available. Model MB25 holds the sensor in place with two setscrews. The block is then mounted to a bracket (such as model MB3), or directly to a machine frame with two #6 screws. Block model MB25 holds an R & PT25 together to converge at approximately /2 inch ahead of the block. MB25 MB25 R & PT3: this is a miniature right-angle design which is mounted in place using two #4 screws. This pair uses a very flexible, lowprofile 2-wire cable. Despite their small size, the optical performance of the R/PT3 is equal to the other remote sensor pairs. R4 & PT4: the 3/8 inch (9,5mm) diameter threaded barrel design makes the R/PT4 the most versatile and most popular remote opposed sensor pair. They are easily mounted through clearance holes using the jam nuts which are supplied. They may be used with optional 4 or 6 lenses for extended range and/or higher excess gain. The addition of an 4 lens on both the R and PT4 will increase their range from 8 feet to 4 feet and increase the excess gain at any distance by a factor of 25. A pair of 6 lenses will increase available excess gain by a factor of lens 6 lens The R/PT4 pair is often used at close range with optional AP4 aperture assemblies to create a very small and well-defined effective beam for resolving small profiles, increasing sensing repeatability, or easing response time requirements. AP4 apertures Aperture model AP4- AP4-5 AP4-4 AP4-3R Aperture size." dia..5" dia..4" dia..3" x.25" 6

7 ensors for use with MA3-4 and MA3-4P Modulated Amplifiers ensors are epoxy-encapsulated. ables are 6-/2 feet (2m) long. 3-foot (9m) cables available by special order. P3 & P3R Range: 5 feet (5m) ffective Beam:.5 inch (3mm) dia. Models/Dimensions xcess ain Beam Pattern Temp. range: -4 to + ousing material: anodized aluminum ong Range OPPOD Mode A P3/R P3/R. FT FT FT FT DTA OPPOD DTA --FT mitter-receiver pair P3/R are extremely rugged and are totally encapsulated in anodized aluminum housings. The threaded hub at the cable exit allows for the use of flexible armored cable or protective PV tubing with the addition of compression gland model F7-6. This pair uses collimating lenses to increase range. These sensors should also be used at short ranges for their high excess gain or to avoid optical "crosstalk" in situations which require several pairs to be mounted adjacent to one another. P3 Range: 5 feet (4,5m) with BRT-3 retroreflector Temp. range: -4 to +8 ousing material: blue anodized aluminum RTRORFTV Mode A with BRT-T tape P3 with BRT- target with BRT-3 target. FT FT FT FT DTA P3 with BRT-3 reflector DTA TO RFTOR--FT Model P3 is a remote retroreflective sensor with the same rugged design as the P3/R, described above. ts useable range is from 6 inches to 5 feet (,2 to 4,5m) using the model BRT-3 retroreflector. P4WB Range: 3 inches (76mm) Temp. range: -4 to +8 ousing material: blue anodized aluminum DVRT Mode f the object that is to break the beam has a shiny surface, then the P3 and its retroreflector should be mounted so that the beam is at an angle of degrees or more to that surface in order to eliminate false signals which are caused by proxing. A P4WB Range based on 9% reflectance white test card P4WB. DTA DTA TO 9% WT TT ARD-- "WB" in this model number designates "wide beam". The P4WB is an infrared divergent mode (wide angle diffuse mode) sensor which is particularly forgiving for reflectively sensing transparent or translucent materials or for sensing objects with irregular surfaces (e.g.- webs with "flutter"). The optics are such that even small threads or wires.5" (,mm) or greater in diameter may be detected when they pass within.25" (6mm) of the sensor's plastic lens. Due to its wide response pattern, the P4WB should not be used for precise positioning control, nor should it be mounted with its lens recessed into a hole. 7

8 ensors for use with MA3-4 and MA3-4P Modulated Amplifiers ensors are epoxy-encapsulated. ables are 6-/2 feet (2m) long. 3-foot (9m) cables available by special order. P3D Range: 2 inches (3cm) both models ousing material (P3D): green anodized aluminum Models/Dimensions P32D Temp. range: -4 to +8 both models ousing material (P32D): black VAO xcess ain DFFU Mode Beam Pattern A P3D, P32D P3D, 32D. DTA DTA TO 9% WT TT ARD-- P3D: the P3D is the diffuse mode version of the P3 with the same rugged aluminum housing and totally encapsulated construction. The glass lenses are hermetically sealed, which eliminates any possibility of condensation inside the lenses and allows operation in adverse environments like steam washdown and high vibration. The P3D may be mounted by its throughholes or with the MB3 bracket, as shown below. P32D: model P32D is identical to the P3D, except for its housing. The 32 is a miniature plastic package, designed to fit into very tight locations. t mounts using two #4 (3mm) screws. The P32D and the P3D are excellent for nearly any presence sensing application. MB3 Universal Mounting Bracket for P3 ensors PV Range: focus at 3.8 inches (96mm) Temp. range: -4 to +8 degrees ousing material: black anodized aluminum OVRT Mode Accessory bracket model MB3 is designed for 2-axis universal mounting of sensor models P3, P3R, P3, and P3D. These sensors are affixed to the MB3 with two #6 (3,5mm) screws. The bracket, in turn, mounts with two # (5mm) screws. n addition, as indicated by the dimension drawing, the MB3 has a clearance slot for mounting R4, PT4, and P4WB barrel sensors. R & PT2 sensors may be mounted with the MB3, using its 7/6-2 threaded hole and steel jam nut, which is supplied with the sensors. R25 and PT25 sensors may be used with the MB3 when the MB25 block is used. Also, two MB25 blocks may be attached to the MB3 bracket and angled to mechanically converge an R & PT25 sensor pair. The PV is a convergent mode sensor that produces a very small. inch (2,5mm) diameter sensing image at a point exactly 3.8 inches (96mm) from its glass lenses. As the excess gain curve illustrates, the PV has a very sharp drop-off of gain beyond the focus point. This feature makes it an excellent choice for detecting a small part which is only a fraction of an inch in front of another surface, such as parts on a conveyor (viewed from above). t is also ideal for fill level detection and for precise positioning control, in lieu of opposed sensing. A PV PV. DTA DTA TO 9% WT TT ARD-- 8

9 ensors for use with MA3-4 and MA3-4P Modulated Amplifiers ensors are epoxy-encapsulated and optics are hermetically sealed. ables are 6-/2 feet (2m) long. 3-foot (9m) cables available by special order. Models/Dimensions xcess ain Beam Pattern FBR OPT Mode glass fiber optics FOF-4 fiberoptic fitting R4 & PT4 with FOF-4 fittings and fiber optics Range: see excess gain curves Temp. range: -4 to + The threaded barrel design of the R4 and PT4 permit the connection of any Banner glass fiber optic assembly by using two model FOF-4 fittings. The sensors are typically mounted through a 3/8 inch (mm) diameter clearance hole, with the FOF-4 fittings threaded onto them after mounting. etscrews in the fittings lock the fibers in place, but allow rapid replacement without disturbing any electrical wiring. As the excess gain curves show, the R/PT4 combination produces a high-performance fiber optic sensing system. With the amplifier's millisecond response time, this system can be used for almost any fiber optic requirement. Fiber optic information: T3: individual assembly.6 in. (,5mm) dia. bundle T23: individual assembly.2 in. (3mm) dia. bundle BT3:bifurcated assembly.6 in. (,5mm) dia. bundle BT23:bifurcated assembly.2 in. (3mm) dia. bundle 9:.5 in. (2mm) dia. lens 6F:. in. (25mm) dia. lens A with T3 fibers R/PT4 Opposed mode, no lenses with T23 fibers. DTA A with 9 lenses Opposed mode, with T23 fibers R/PT4 with 6F lenses. FT FT FT FT DTA Retroreflective mode, with BT3 fibers with 6F lens and BRT-3 reflector R/PT4 A with 9 lens and BRT-3 reflector. FT FT FT FT DTA A Diffuse mode -- range based on 9% reflectance white test card with BT23 fibers R/PT4 with BP3 fibers. DTA R/PT4 Opposed mode w/t3 fibers w/t23 fibers OPPOD DTA-- R/PT4 24 Opposed mode 6 T23 fibers and 8 6F lenses T23 fibers and 9 lenses OPPOD DTA--FT R/PT Retroreflective mode, with BRT-3 reflector and BT3 fiber w/9 lens w/6f lens DTA TO RFTOR--FT R/PT4 Diffuse mode w/bt3 fibers w/bt23 fibers DTA TO 9% WT TT ARD-- ensor ookup Diagrams for MA3-4 MRO-AMP Modules (continued on page ) The following hookup diagrams include all of the remote sensors for use with the model MA3-4 modulated amplifier module. t is important to note how the shield wire of a remote sensor is wired. The shield wire is the uninsulated wire in each sensor cable. Failure to connect the shield as shown may result in false operation of the amplifier. When wiring emitters, it is good practice to connect the positive wire first. Ds are sensitive to application of the wrong voltage, and can easily be destroyed. ookup of R/PT2, 25, 3, and 4 OT: only one sensor may be connected to each MA3-4 amplifier. OT: hield wires must be connected as shown to avoid cable crosstalk. 9

10 ensor ookup Diagrams for MA3-4 MRO-AMP Modules (continued) ookup of R3 and PT3 ookup of P3D, P3, P4WB, PV ookup of P32D MPORTAT : able plicing nformation Remote sensor cables may be run up to 3 feet (9m) away from the MA3-4 amplifier. All sensor models are available from the factory with 3 feet of cable, installed as an option. When splicing additional cable to the standard 6-/2 foot length, it is important to use a separate shielded cable for emitter and receiver wires. ombining emitter and receiver wires together in the same cable (even if the cable is shielded) will result in direct coupling of the emitter signal to the receiver leads. This is called "cable crosstalk" and will not allow full amplifier sensitivity setting without an amplifier "lock on" situation, which appears as a continuous T condition. Banner offers foot (3m) lengths of sensor extension cable (see below) which, if used for cable splicing, will minimize the chances for cable crosstalk. Accessories for igh Performance Modulated Remote ensors xtension able Modulated remote sensors require specially designed cable for efficient sensor performance. xtension cable is available in foot (3m) lengths. xtension able Model - R R- Used on ensor Models R2, R25, R4, P3 PT2, PT25, PT4, P3R P3D, P3, P4WB, PV R3 PT3 # of Wires Wire olors White, reen, hield Red, Black, hield White, reen, Red, Black, hield White, hield Red, hield 32- P32D 4 White, hield, Red, hield able Protection A-6 6 feet (,8m) A-3 3 feet (9m) This is mild-steel flexible tubing used with the compression fittings, at right, to achieve maximum protection to sensor cables..d. = 5/6"; O.D. = 7/6". PV-6 6 feet (,8m) PV-3 3 feet (9m) eavy duty PV tubing used to protect sensor cable in applications involving moisture and/or corrosive materials..d. = /4"; O.D. = 3/8". ompression Fittings used to Attach Protective Tubing to Remote ensors F3-8 3/8"-32 thread F7-6 7/6"-2 thread ompression Fitting Model F3-8 F7-6 Used to Attach Tubing to these Models R4, PT4, P4WB P3, P3R, P3D, P3, R2, PT2

11 MRO-AMP ystem MA4-2 One-hot ogic Module MRO-AMP module MA4-2 is a plug-in one-shot logic module with adjustable pulse length. t is designed as a way to easily add one-shot timing to a MRO-AMP system which uses an MA3 or MA3-4 amplifier. t may also be used to add a one-shot timer to any current sinking D device or to a system which offers a contact closure output. A low-going logic PUT signal at pin #7 of the module activates a one-shot output at both pins #5 and #6, unless a low-going logic BT signal is present at pin #8 when the input occurs. Both ORMAY OP (pin #6) and ORMAY OD (pin #5) outputs are available. Both are P open-collector (current sinking) transistors, each capable of switching up to 5 milliamps. Three pulse duration time ranges are selectable. The. to. second range is standard, and. to second and to 5 second ranges are selected by connecting the appropriate module pin to pin #3 (dc common). The MA4-2 is a retriggerable-type one-shot, but may easily be programmed to the non-retriggerable mode by connecting pin #6 (/O output) to pin #8 (BT input). MRO-AMP MA4-2 pecifications One-shot logic, MA4-2: UPPY VOTA: to 3V dc at less than 2 milliamps (exclusive of load); % maximum ripple. BT PUT: PUT and BT both respond to a logic "low" signal (less than 2V dc). A logic "high" is at least 6V dc or an open circuit. nputs must be capable of sinking at least 4 milliamps. nputs may be derived from limit switches or from dc sensors with P (current sinking) output transistors. RPO PD: PUT and BT will respond to a low signal or high signal of millisecond duration or longer. OUTPUT OFURATO: two open-collector P transistors with complementary outputs (one normally open, one normally closed). Maximum sinking current 5 milliamps, each output. aturation voltage less than.5v dc at milliamps. Off-state leakage current less than microamp. PU DURATO: standard range is. to. second. Programmable ranges are. to second and to 5 seconds. elect the. to second range by connecting pin #2 to pin #3. elect the to 5 second range by connecting # to #3. TM ADJUTMT: single-turn timing potentiometer allows adjustment of pulse duration within the selected range (use small flatbladed screwdriver). DATOR: red D indicator on the top of the module lights whenever the /O output is conducting (i.e. when the /O output is closed and the / output is open). OTRUTO: totally encapsulated plug-in package with molded VAO housing. old-flashed connection pins. OPRAT TMPRATUR: to 7 degrees (32 to 58 degrees F). OUTPUT PUT Pulse Pulse Functional chematic, MA4-2 O-OT Module ookup Diagram, MA4-2 O-OT Module There are two types of basic "one-shots": RTRRAB and O- RTRRAB. The output pulse timing of a retriggerable one-shot is restarted with the reoccurance of every input. The output will remain "on" as long as the time between consecutive inputs is shorter than the one-shot pulse time (see timing diagram, below). Retriggerable one-shot logic: old Pulse Pulse OUTPUT PUT A non-retriggerable one-shot timer must complete a pulse before it will accept any new input signals. on-retriggerable one-shots sometimes offer an advantage in indexing or registration control applications where multiple input signals are possible during advance of the product. The MA4-2 may be programmed for the non-retriggerable mode by connecting pin #6 to pin #8. on-retriggerable one-shot logic: Pulse Pulse Pulse OUTPUT PUT

12 MRO-AMP ystem MA4 4-input ate ogic Module MRO-AMP module MA4 is a to 3V dc, plug-in, 4-input logic gate module. t offers three selectable logic modes: "AD", "OR", and "-OR" (exclusive "OR"). n the AD gate mode, the output(s) will change state when all four inputs are low simultaneously. The OR logic mode requires that all four inputs be high at the same time for the output(s) to change state. The output(s) will change state in the -OR mode when all four inputs are simultaneously either high or low. The MA4 may be used as a 2, 3 or 4-input gate. Unused inputs are simply tied low (to pin #3) or left unconnected (high), depending upon the logic mode in use. The MA4 directly accepts the outputs of other MRO-AMP modules plus the P (current sinking) output of self-contained dc sensors. MRO-AMP MA4 pecifications UPPY VOTA: to 3V dc at less than 2 milliamps (exclusive of load); % maximum ripple. PUT: PUT and BT both respond to a logic "low" signal (less than 2V dc). A logic "high" is at least 6V dc or an open circuit. nputs must be capable of sinking at least 4 milliamps. nputs may be derived from limit switches or from dc sensors with P (current sinking) output transistors. RPO PD: all PUT will respond to a low signal or high signal of millisecond duration or longer. OUTPUT OFURATO: two open-collector P transistors with complementary outputs (one normally open, one normally closed). Maximum sinking current 5 milliamps, each output. aturation voltage less than.5v dc at milliamps. Off-state leakage current less than microamp. TOR WT: single-turn potentiometer selects logic mode. Fully clockwise = OR mode; fully counterclockwise = AD mode; midpoint = -OR mode. DATOR: red D indicator on the top of the module lights whenever the /O output is conducting. OTRUTO: totally encapsulated plug-in package with molded VAO housing. old-flashed connection pins. OPRAT TMPRATUR: to 7 degrees (32 to 58 degrees F). Functional chematic, MA4 O Module ookup Diagram, MA4 O Module Truth Table This table lists the various input states and their corresponding outputs available in each logic mode. The key to reading the table is given below. ogic statements in the table read down the columns. For example, in the first column, if the selector control is at "AD" and all four inputs are logic low, the MA4's /O output is low, the / output is high, and the D indicator is "on". Truth Table Key = logic = logic OW = either or OW (does not matter) "AD": all inputs low energizes /O output. Any input(s) high energizes / output. "OR": all inputs high energizes /O output. Any input(s) low energizes / output. "-OR" ("exclusive OR"): All inputs the same energizes /O output. All inputs not the same energizes / output. 2

13 MRO-AMP ystem MA4 atch ogic Module MRO-AMP model MA4 offers two latching logic modes. t can be latched and unlatched with low-going signals to its T and RT inputs. t also will function as an edge-triggered "D" flip-flop latch when signals are presented to its PUT pin. The edge-triggered latch may be interrogated with a second signal at the BT or the RT pin. n this mode, the MA4 is very useful in inspection/rejection applications. The MA4 may also be wired for alternate-action divide-by-two logic (see logic diagram, below). The MA4 directly accepts the outputs of other Banner MRO-AMP modules plus the P (current sinking) output of self-contained dc sensors. et/reset latch mode, MA4: dge-triggered latch mode, MA4: Flip-flop ( 2) logic, MA4: OUTPUT T OUTPUT PUT OUTPUT (at pin #5) PUT RT * RT OT: Jumper pin #8 (BT) to pin #6 (/O Output) MRO-AMP MA4 pecifications UPPY VOTA: to 3V dc at less than 2 milliamps (exclusive of load); % maximum ripple. PUT: PUT, BT, RT, and T signals are buffered for -millisecond response. A logic "low" must be less than 2V dc. A logic "high" is at least 6V dc or an open circuit. nputs must be capable of sinking at least 4 milliamps. nputs may be derived from limit switches or from dc sensors with P (current sinking) output transistors. PUT signal polarity is selectable for either high-going or low-going transition. OUTPUT OFURATO: two open-collector P transistors with complementary outputs (one normally open, one normally closed). Maximum sinking current 5 milliamps, each output. aturation voltage less than.5v dc at milliamps. Off-state leakage current less than microamp. RPO PD: all inputs will respond to a low signal or a high signal of millisecond duration or longer. RUT PROTTO: reverse voltage polarity protected. atch comes up reset after power-up. TOR WT: single-turn potentiometer selects response polarity of PUT. Fully clockwise = high-going transition; fully counterclockwise = low-going transition. DATOR: red D indicator on the top of the module lights whenever the /O output is conducting. OTRUTO: totally encapsulated plug-in package with molded VAO housing. old-flashed connection pins. OPRAT TMPRATUR: to 7 degrees (32 to 58 degrees F). Functional chematic MA4 AT Module ookup Diagram, MA4 AT Module ogic Truth Tables TRUT TAB KY = logic = logic OW = either or OW (does not matter) = to OW transition = OW to transition = no change of state *OT: both outputs conduct in this condition (*). T-RT AT MOD (no connections to PUT or BT) T (pin #2) RT (pin #) /O OUTPUT (pin #6) / OUTPUT (pin #5) ndicator D * * Off On On nput Polarity: PUT (pin #7) BT (pin #8) or RT (pin #) /O OUTPUT (pin #6) / OUTPUT (pin #5) ndicator D D-TRRD AT MOD (no connections to T) On Off On Off 3

14 MRO-AMP ystem MA5 Delay ogic Module MRO-AMP model MA5 is a plug-in delay logic module with adjustable delay timing. t is designed as a way to easily add an O DAY or an OFF DAY timer to a MRO-AMP system which uses an MA3 or MA3-4 amplifier. t may also be used to add a delay timer to any current sinking dc device or to a system which offers a contact closure output. A low-going logic PUT signal at pin #7 of the module activates an O DAY timer. f the signal remains longer than the set O DAY time, the output at both pins #5 and #6 will change state. f pin #8 is connected to pin #3, the MA5 is converted to an OFF DAY timer. n the OFF DAY mode, an output will occur immediately when an input signal appears at pin #7, and the output will remain "on" after the input is removed for the OFF DAY time period. The MA5 may be programmed to respond to a high-going input signal by connecting pin # to pin #3. Both ORMAY OP (pin #6) and ORMAY OD (pin #5) outputs are available (simultaneously). Both outputs are P opencollector (current sinking) transistors, each capable of switching up to 5 milliamps. Two delay time ranges are selectable. The. to second range is standard, and a to 5 second range may be programmed by connecting pin #2 to pin #3. A potentiometer allows fine adjustment within each time range. The MA5 may be mounted and wired using the optional R8 socket, or it may be wired into a printed circuit board either directly or by using the model R8K P board socket. On-delay logic, MA5: OUTPUT PUT Off-delay logic, MA5: old OUTPUT Delay old MRO-AMP MA5 pecifications PUT UPPY VOTA: to 3V dc at less than 2 milliamps (exclusive of load); % maximum ripple. PUT: A logic "low" must be less than 2V dc) A logic "high" is at least 6V dc or an open circuit. onnecting pin # to pin #3 (dc common) causes the MA5 to respond to "high-going" signals. nputs must be capable of sinking at least 4 milliamps. nputs may be derived from limit switches or from dc sensors with P (current sinking) output transistors. RPO PD: PUT will respond to a low or high signal of millisecond or longer duration. OUTPUT OFURATO: two open-collector P transistors with complementary outputs (one normally open, one normally closed). Maximum sinking current 5 milliamps, each output. aturation voltage less than.5v dc at milliamps. Off-state leakage current less than microamp. DAY TO: connect pin #8 to pin #3 (dc common) for OFF DAY operation. For O DAY operation, leave pin #8 unconnected. DAY DURATO: standard range is. to second. elect the to 5 second range by connecting pin #2 to pin #3. TM ADJUTMT: single-turn timing potentiometer allows adjustment of delay time within the selected range (use small flatbladed screwdriver for adjustment). DATOR: red D indicator on the top of the module lights whenever the /O output is conducting. OTRUTO: totally encapsulated plug-in package with molded VAO housing. old-flashed connection pins. OPRAT TMPRATUR: to 7 degrees (3 to 58 degrees F). Functional chematic, MA5 DAY Module ookup Diagram, MA5 DAY Module 4

15 MRO-AMP ystem MP3 Miniature Modulated Amplifier for direct P-board mounting Model MP3 is a modulated D photoelectric amplifier which utilizes custom MO integrated circuitry. t contains all the circuitry necessary to modulate nearly any ight- mitting Diode (D) and to amplify and demodulate the light received by a phototransistor. The outputs are conventional buffered complementary MO gates. The MP3 is designed to work with the Banner P series miniature modulated remote sensors. owever, it may be used with nearly any D and phototransistor pair, as supplied by most major semiconductor manufacturers. The small size and low cost of the MP3 permit its use in OM equipment where conventional photoelectric controls are not justified, or where non-modulated sensors are now being used. Typical OM applications include duplicating machines, semiconductor processing equipment, label sensors, vending machines, vibratory feeder controls, robotic sensors, and automatic testing equipment. The MP3 also contains the patented Banner "AD " (Alignment ndicator Device) circuitry, which shows the strength of the received signal in addition to indicating the state of the outputs. This feature permits easy setup and alignment of the sensors, and also provides a means for the ultimate user of the equipment to monitor its performance without test instruments. An D indicator is added (externally) to utilize the AD circuitry. Amplifier sensitivity is adjusted with an external potentiometer or fixed resistor. Amplifier response speed is set at milliseconds. An optional frequency control resistor (R f ) may be used for faster amplifier response. The circuitry of the MP3 is totally encapsulated in a high-impact molded polystyrene housing. t is designed for mounting directly to a printed circuit board. A set of eight closed-back pin jacks is supplied to allow the MP3 to plug into the P board. A batterypowered demonstration board, model MP3-DB, is available for evaluation of the MP3. MRO-AMP MP3 pecifications UPPY VOTA: 5V dc ±% at less than 2 milliamps; millivolts maximum ripple. Voltage must not exceed 6V dc, or be connected in reverse polarity. nstall a. microfarad capacitor as close as possible to the supply pins of the MP3 (across pins # and #3) if voltage transients are anticipated. OUTPUT OFURATO: the outputs at pins #7 and #8 are conventional MO buffered gates. The output at pin #7 is high in the DARK condition and low in the T condition. The output at pin #8 is low in the DARK condition and high in the T condition. ach output will source or sink several milliamps. RUT PROTTO: outputs are short-circuit protected. They may be shorted to either the positive or negative supply line without damage. The emitter output at pin #5 is internally currentlimited, and may be grounded indefinitely. The "AD" output at pin #6 is internally current-limited, and may be connected to the positive supply indefinitely. TVTY ADJUTMT: the value of the sensitivity adjustment potentiometer, or of the fixed resistor if sensitivity adjustment is not anticipated, is 2, ohms (2kΩ). This is the optimum value for Banner sensors and for most phototransistors of other manufacturers. n situations where very high gain photodarlingtons or very low gain phototransistors or photodiodes are being used, Banner can help determine the best value. P eries ensors milliseconds or 4 oscillator pulses. ince the demodulator is digital, faster response times are possible by simply increasing the frequency of the emitter oscillator. This is done by installing a resistor ("Rf" in the hookup diagram) from pin #2 to the positive supply (pin #). The value of the resistor is best determined empirically, by observing the signal at pin #5 (with respect to ground) on an oscilloscope. The response time of the MP3 is equal to the time required for four pulses, and the repeatability of the response time is the time for one pulse. The approximate value of Rf is 39kΩ for 5 millisecond response, and 39kΩ for millisecond response. An internal emitter oscillator generates 3 microsecond pulses at a rate of about 4z. When the frequency of the emitter oscillator is increased, the automatic emitter power control reduces the magnitude of the pulse current to the emitter so that it will not be damaged by the increased duty cycle. As a result, the excess gain (and the range) of the sensors will automatically be reduced. For this reason, the MP3 should be operated at the slowest frequency (response time) that is consistent with the application requirements. DATOR: a constant current output is provided at pin #6 for a customer-supplied indicator D. This current is held to only a few milliamps in order to minimize power supply requirements. f the D that is selected does not appear bright enough, Banner can suggest or supply high-brightness indicators. OTRUTO: totally encapsulated circuitry in molded highimpact polystyrene housing. losed-end jacks for P plug-in mounting are included. FRQUY ADJUTMT: the response time of the circuit is OPRAT TMPRATUR: -4 to 7 degrees (-4 to 58 degrees F). 5

16 Functional chematic, MRO-AMP MP3 * U.. Patent # **U.. Patent # ircuit Description The functional schematic shows the MP3 powered by 5V dc at pins # and #3. An internal emitter oscillator generates 3 microsecond pulses at a rate of approximately 4z, which are fed to the emitter at pin #5. These emitter current pulses are controlled automatically by a patented* power-limiting circuit that adjusts to the emitter and to the frequency in use. The phototransistor receives the light pulses from the D, either directly or by reflection from an object, and sends them to the input (pin #4) via the sensitivity adjustment resistor (or potentiometer). These low-level signals are amplified, separated from the emitted light, and then detected by the threshold detector. The resultant logiclevel pulses are then gated synchronously with the oscillator output (to eliminate noise and interference) and demodulated. The demodulated output is then buffered and inverted, and brought to the output pins #7 and #8. n addition, a small amount of hysteresis is fed back to the threshold detector to assure clean, bounce free output switching. The amplified signal is also fed through a negative peak detector and to a voltage-controlled oscillator whose output frequency is directly proportional to signal strength. This is the patented** Banner "AD " feature which flashes the D indicator at a rate which is proportional to the strength of the received light signal (excess gain). ookup Diagram, MRO-AMP MP3 Dimensions, MP3 Model MP3-DB Demo Board The MP3-DB is a battery-powered demonstration/testing board which is available to help in evaluating the MP3 and its sensor(s). The demo board includes a plug-in MP3 and indicator Ds for both outputs, plus the "AD " indicator, a sensitivity potentiometer, and a 4-pin terminal strip to which the D and receiver phototransistor may be connected. The MP3-DB is powered by 3 "AA" penlight batteries. (Yes, batteries are included!!!) This is a very simple and inexpensive way to become familiar with the characteristics of the MP3, and to evaluate the sensors to be used with the MP3. 6

17 MRO-AMP ystem PFF Fixed-field ensor Optical design ensures an exact range limit, regardless of the surface reflectivity of the objects to be sensed Powerful infrared light source and modulated amplification provide reliable sensing of objects with low surface reflectivity ensor response to background objects is completely suppressed Miniature size fits easily into tight areas of machines Works with special versions of Banner's MRO-AMP series of modulated amplifiers Model PFF is a fixed-field convergent mode sensor that detects objects directly by reflection of light from the object's surface. The light is sensed at two receive points and compared to define a precise limit to the maximum sensing range. Objects in the background are ignored, regardless of their surface reflectivity. onceptual Drawing This sensing response feature makes the PFF an ideal choice for detecting a part or a surface that is only a small fraction of an inch in front of another surface. The PFF is highly reliable for semiconductor wafer sensing. Wafers of all reflectivities are sensed without mechanical or system sensitivity adjustment. Other applications include cut-to-length control, double-thickness detection, and precision edgeguiding. The PFF is an excellent choice for precise position control (e.g. as a robotic end effector). The PFF works in conjunction with Banner MRO-AMP modulated amplifier model MA3A or MP3A. Model MA3A is powered by + to 3V dc and uses a model R8 socket. Model MP3A is powered by +5V dc and is designed for mounting directly onto P boards. With a typical excess gain of at the peak signal point (referenced to a 9% reflectance white test card), the PFF has enough optical energy to reliably sense material of very low reflectivity such as nitride-coated semiconductor wafers. The typical peak signal point is.2 inch from the sensor face. xcess gain falls off sharply beyond the peak signal point (see excess gain curve, below). Theory of Operation The PFF uses two photoelements that operate with the modulated amplifier in a differential mode. The photoelements are mechanically convergent with the D light source at two different distances from the sensor face. The inner photoelement (R) produces a positive-going pulse which turns the output of the amplifier "on". The outer photoelement (R2) produces a negative-going pulse that works to turn the amplifier "off". xcess ain urve A target is sensed whenever the amount of light reaching receiver R is equal to or greater than the amount of light "seen" by R2. The output of the amplifier is cut off as soon as the amount of light at R2 becomes greater than at R. The location of this "crossover point" is dictated by the geometry of the optoelement configuration, and remains the same regardless of the target's reflectivity. Reflections even from highly-polished mirror-like surfaces are ignored if the reflections originate from beyond the crossover point. Modulated D design offers very high excess gain at the convergent point of R (see excess gain curve). As a result, even objects of very low reflectivity may be sensed. The rapid fall-off in signal strength over a very short distance (as seen in the excess gain curve) accounts for the highly repeatable distance-sensing accuracy of the PFF, independent of target surface reflectivity. 7

18 pecifications, model PFF rossover Point:.5 to.25 inch (3,8 to 6,4mm),.2 inch (5,mm) nominal referenced from sensor face Peak ignal Point:.8 to.6 inch (2 to 4mm),.2 inch (3mm) nominal referenced from sensor face Response peed: a function of the amplifier (see below) mitter characteristics: infrared D, 88nm onstruction: totally encapsulated, glass lenses. Black Delrin housing; MA, 3, 4, 2, and 3. Operating Temperature: to 7 (+32 to 58 F) able: supplied with 6 feet of 4-conductor PV-covered cable. Dimensions Delrin is a registered trademark of DuPont o. PFF ookup to MRO-AMP MA3A Amplifier MRO-AMP modulated amplifier model MA3A is designed for use with the PFF sensor. Model MA3A has the same specifications as standard MRO-AMP model MA3 (page 3), with the exceptions of response speed and sensor hookup. Model MA3A offers complementary current sinking outputs. ach output has sufficient capacity to switch small electromechanical devices, such as relays, and will directly interface logic inputs. onnections are made using the optional R8 socket and wiring base, or the MA3A may be mounted directly to a P board. The sensing system is powered by + to 3V dc. Power supply model MP-5 is available, and includes its own board-mounted socket for the MA3A and a built-in PDT output relay (see page 9). Model MA3A features the patented Banner Alignment ndicator Device (AD ) signal strength D. The PFF's sensitivity is adjustable via a gain potentiometer on top of the amplifier module. ircuitry is epoxy-encapsulated and protected by a tough molded VAO housing. Additional information for model MA3A may be obtained from the description of standard amplifier model MA3 on page 3 of this catalog. VAO is a registered trademark of eneral lectric ompany pecifications, MRO-AMP MA3A Amplifier Power upply Requirements: + to 3V dc at less than 2mA; % maximum ripple. Power may be obtained from Banner power supply model MP-5 (page 9), P2, P2R, or P2-5. Output onfiguration: two open-collector P (current sinking) transistor solid-state switches, one normally open, one normally closed. 5mA maximum, each output. Response speed: 2 milliseconds (typical) Maximum ensor ead ength: 5 feet (4,5m) Operating Temperature: to 7 (+32 to 58 F) PFF ookup to MRO-AMP MP3A Amplifier Amplifier model MP3A is a modified version of standard model MP3 (pages 5-6). The MP3A is configured for use with sensor model PFF. Model MP3A is a miniature "component" amplifier that is designed for mounting directly to a P board. The MP3A is powered by +5V dc, and outputs are conventional buffered (complementary) MO gates. pecifications for model MP3A (except for response time and hookup information) are identical to standard model MP3. MP3A response time is less than.5 milliseconds, and may be adjusted for faster response. ee page 5 for complete information. 8

19 MRO-AMP ystem MP-5 and MP-5-23 Power upplies MP-5 eries power supplies are designed specifically to supply power for the Banner MRO-AMP series amplifiers and logic modules. They are constructed on small P boards that are track-mountable for compatibility with other track-mounted MRO- AMP components. The MP-5 includes a socket for a MRO-AMP amplifier or logic module. The combination of an MP-5 series power supply and a MRO-AMP module makes a complete and compact sensing and/or control system. A built-in 5-amp rated PDT output relay is supplied for easy interfacing to an external load or circuit. ts action is controlled by the outputs of a MRO-AMP module which is plugged into the on-board module socket. A switch on the P board selects which module output (normally open or normally closed) will activate the relay. Two models are available. Model MP-5 is for 2V ac operation. Model MP-5-23 is for 22/24V ac power. Up to three MRO-AMP modules may be powered by one MP-5 power supply. A 4-inch (mm) long mounting track is supplied with each MP-5. Optional 6-inch (5mm) track model TR-6 neatly accomodates the MP-5 eries P board plus the P boards of two additional R8 sockets to form a complete three-module MRO-AMP sensing/logic system. pecifications UPPY VOTA: model MP-5 is for 5 to 3V ac (5/ 6z); model MP-5-23 is for 2 to 25V ac (5/6z). OUTPUT OFURATO: PDT electromechanical relay. ontact rating: 25V ac max., 3V dc max., 5 amps max. (resistive load). nstall MOV (metal oxide varistor) transient suppressor of appropriate voltage across contacts used to switch inductive loads. *ontact response: 2 milliseconds open and close. Mechanical life:,, operations. *OT: dc loads may be easily connected directly to the output(s) of the MRO-AMP module used with the chassis in order to bypass the relay and therefore take advantage of the millisecond response time of the module (see MRO-AMP module specifications and hookup). OMPATB MODU: models MA3, MA3A, MA3-4, MA4-2, MA4, MA4, MA5. Do not plug modules with current-sourcing PP outputs (MA3P, MA3-4P, etc.) into the socket on the MP-5. POWR FOR TRA DV: 4 milliamps is available to power external to 3V dc devices (e.g.- two additional MRO- AMP modules or two M-BAM sensors, etc.). OPRAT TMPRATUR: -4 to 7 degrees (-4 to 58 degrees F). ookup Diagram, MP-5 & MP-5-23 Dimension Drawing, MP-5 & MP-5-23 OT: for hookup of sensors or inputs to the module socket, see the hookup diagram for the module used. 9

20 MRO-AMP Accessories ockets R8 The R8 socket is the most frequently used means of mounting and wiring a MRO-AMP module. t consists of a socket with two four-terminal connection strips, all wired together onto a P board. The P board assembly slides into a inch (25mm) long PV track which is used to mount the entire assembly. A hold-down screw keys the correct polarity of the module. R8K The R8K is a kit of parts which comprise the socket portion of the R8 assembly. t is used to provide a socket for MRO-AMP modules that are installed onto printed circuit boards. The R8K consists of a molded socket block and 8 individual socket pins. A nylon screw is included to affix the socket block to the P board. The drill size for the pins is #5 (.7";,8mm). Drill pattern dimensions are included with the R8K. Mounting Track TR- inch (25mm) long (supplied with R8 socket) TR-4 4 inch (mm) long (supplied with MP-5 series power supply) TR-6 6 inch (5mm) long TR-2 2 inch (3mm) long PV mounting track for MRO-AMP components is available in 6 and 2 inch lengths for systems which use multiple components. For example, a 6-inch length will accomodate one MP-5 power supply plus two additional R8 sockets with modules. onger lengths of mounting track may be supplied on a quote basis. Dimensions, TR- Mounting Track Track Model TR- TR-4 TR-6 TR-2 "A" Dimension " (25mm) 4" (mm) 6" (5mm) 2" (3mm) Minimum number of slots 2 3 8! WAR MRO-AMP sensors, amplifiers, and logic modules do OT include the self-checking redundant circuitry necessary to allow their use in personnel safety applications. A sensor failure or malfunction can result in either an energized or a de-energized output condition. ever use MRO-AMP products as sensing devices for personnel protection. Their use as safety devices may create an unsafe condition which could lead to serious injury or death. Only MA-UARD and PRMTR-UARD ystems, and other systems so designated, are designed to meet OA and A machine safety standards for point-of-operation guarding devices. o other Banner sensors or controls are designed to meet these standards, and they must OT be used as sensing devices for personnel protection. WARRATY: Banner ngineering orporation warrants its products to be free from defects for one year. Banner ngineering orporation will repair or replace, free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty period. This warranty does not cover damage or liability for the improper application of Banner products. This warranty is in lieu of any other warranty either expressed or implied. Banner ngineering orp. 974 Tenth Ave. o. Minneapolis, M 5544 Telephone: (62) FA (applications): (62)