bsolute Position V UG 8 The is a member of the DS series of Electric Encoders a product line based on Netzer Precision Motion Sensor proprietary technology. EE products are characterized by features that enable unparalleled performance: Low profile (7 mm) Hollow, floating shaft No bearings or other contact elements High resolution and unparalleled precision High tolerance to temperature extremes, shock, moisture, EMI, RFI and magnetic fields Very low weight Holistic signal generation Digital interfaces for absolute position General ngular resolution Static error Maximum operational speed Measurement uild In Test IT Mechanical llowable mounting eccentricity llowable rotor axial motion ±. mm ±. mm Rotor inertia gr mm Total weight Outer Ø /Inner Ø/ Height Material (stator, rotor) Notes - Optional (Call) 7 bits ;,7 CPR <.5 Deg, rpm Single turn bsolute Position Optional gr 5 / 6 / 7 mm Ultem polymer ngular resolution 8-9 bit Static Error <. Deg The Electric Encoder is unique in being holistic, i.e., its output reading is the averaged outcome of the whole area of the rotor, This feature makes the Electric Encoder forgiving to mounting tolerances, mechanical wander etc. The absence of components such as ball bearings, flexible couplers, glass disc, light sources and detectors, along with very low power consumption makes the Electric Encoder virtually failure free. The internally shielded, DC operated Electric Encoder includes an electric field generator, a field receiver, a sinusoidal shaped dielectric rotor, and processing electronics. The output of Electric Encoder is a digital serial with absolute position single turn. The combination of precision, low profile, low weight and high reliability have made Netzer Precision encoders particularly suitable to a wide variety of industrial automation applications. Electrical Supply voltage 5V ± % Current consumption Interconnection Cable Length Environmental 7 m # shielded cable,5 mm MX EMC IEC 6-6-, IEC 6-6- Operating temperature Storage temperature Relative humidity Shock endurance Vibration endurance Protection IP -55 C to 85 C -6 C to C 98% Non condensing g for ms g Hz Operating temperature -55 C to 5 C Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel
bsolute Position V UG 8 Description n Total number of data bits - 9 T Clock period Recommendations f= /T Clock frequency. 5. MHz Tu it update time 9 nsec Tp Pause time 6 - μsec Tm Monoflop time >5 μsec Tr fr=/tr Time between adjacent requests Data request frequency Electric Encoder CLK / NCP RX [] CLK / NCP RX [] DT / NCP TX [] DT / NCP TX [] Gnd 5V Digital SSi Interface Synchronous Serial Interface (SSI) is a point to point serial interface standard between a master (e.g. controller) and a slave (e.g. sensor) for digital data transmission. Master Clock Encoder Data n n Tu MS T Tr (gray) (blue) (yellow) (green) (black) (red) LS n n- n- Ω Tm Tp Tr > n*t6 μsec Host System 5V 5V MS SSi / iss output signal parameters Signal latency Output code Serial output Clock Clock Frequency Position update rate 5 μsec inary Differential RS- Differential RS-. 5. MHz khz SSi / iss interface wires color code Clock Clock - Data - Data Grey lue Yellow Green Clock Data GND lack Ground 5V Red Power supply Software tools: (SSi / iss - C) dvanced calibration and monitoring options are available by using the factory supplied Electric Encoder Explorer software, This facilitates proper mechanical mounting, offsets calibration and advanced signal monitoring. Digital iss-c Interface iss C Interface is unidirectional serial synchronous protocol for digital data transmission where the Encoder acts as slave transmits data according to Master clock. The iss protocol is designed in mode and C mode (continuous mode). The iss-c interface as the SSi is based on RS- standards. Master Clock Encoder Data it # Description Default Length 7 ck 6 Start Period during which the encoder calculates the absolute position, one clock cycle Encoder signal for start data transmit /clock bit 5 start bit follower bit 8... P bsolute Position encoder data 7 Error Error (amplitude levels) bit 6 Warn. Warning (non active) bit...5 CRC ck Start Timeout Position (bits) Error The CRC polynomial for position, error and warning data is: x 6 x x. It is transmitted MS first and inverted. The start bit and bit are omitted from the CRC calculation. Warn Elapse between the sequential start request cycle s. CRC (6 bits) Timeout 6 bits 5 μs Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel
bsolute Position V UG 8 nalog Interface Coarse and Fine channels The has two operational modes: a Coarse-mode and a Fine-mode - equivalent to two separate encoders in a common housing. The modes are selectable by a logic C/F command; logic (V to.5v) selects the Coarsemode, which has Electrical Cycle/Revolution (EC/R) while logic (V to 5V) selects the Fine-mode which has 6 EC/R. The switching time is less than ms. The Coarse-mode outputs need to be read only upon system initiation after which the encoder is permanently switched to the Fine mode. Coarse and Fine sine / cosine pairs are used to calculate the initial absolute position, from that point tracking the Fine-channel outputs provides the absolute mechanical rotation angle with the specified accuracy and resolution. ll output signals are referenced to an internally generated voltage Vr (~.5V). Output signal parameters Electric Cycles (Fine / Coarse channels) 6 / Signal latency Fine-mode output noise (DC to khz) 5 μsec µv (p-p) Fine-mode output amplitude ±mv ± % Coarse-mode output amplitude ±mv ± % Phase relationship (CW shaft rotation - seen from top) Signal bandwidth Current consumption Sine leads Cosine DC to khz m R Electric Encoder.5V SINE (FINE) SINE (CORSE) COSINE (FINE) R COSINE (CORSE) LP filter 5V C/F Gnd Sin Vr (~.V) LP filter Cos (Red) (Grey) (lack) (lue) (Green) (Yellow) nalog interface wires color code R R R R R Vref/ R Vref/ GND lack Ground C/F Grey Coarse / Fine Sine lue Sine signal bsolute Position calculation Host System R R.7K nf.7k nf Vref Sample Sine /D Vref Cosine /D Vr Green V referencecosine signal 5 Cosine Yellow Cosine signal 6 5V Red P.S. The analog Sine / Cosine outputs convey the Electrical angle of the Coarse or Fine signals. The bsolute mechanical angle is computed by digitizing the analog signals. Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel
bsolute Position V UG 8 Ordering Code DS - 5 - S F - S M DS Product line Outer Diameter Output S SSi I iss nalog Resolution Code it CPR F 7,7 Rotor options - Ø ID [ ] Default, 6 mm M Rotor metal sleeve,.5 mm Interconnection Flying leads S Shielded cable 5 mm IT (uild In Test): optional [ ] None IT Netzer Cat No.: C Provider: Ray-Q US. CT No.: RQ Cable: WG twisted pair (): ( WG 5/ tinned copper, Insulation: PFE Ø.5 to Ø.6 ±.5 OD). Temperature rating: -6 to 5 Deg C. raided shield: Thinned copper braided 95% min. coverage. Jacket:. silicon rubber (NF -) Ø.5 ±. OD Related documents User Manual : Mechanical, Electrical and calibration setup. Demonstration Kit DKIT--SF with SSi interface DKIT--IF with iss interface Includes, mounted encoder on rotary jig, and RS- to US converter. Pair # - - Color Red / lack Gray / lue WG twisted pairs () raided shield.7 WG single insulated wire 5-6 Green / Yellow Jacket.mm Ø.5 ±. mm Ø.6 ±.5 mm Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel
bsolute Position V UG 8 ICD Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel 5
bsolute Position V UG 8 with rotor metal sleeve Shaft sleeve ID.5 mm (included) DIN9 Screw Mx6 (optional) SECTION - grooves every - Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel 6
bsolute Position V UG 8 Shaft - End installation (step)...7 5.5 *. 6 -. *.5. C. X 5 C M 6 7. -.5 * 6 SECTION - 5.6.5 min. ±.5 SECTION D-D HOLES #-8" EQ.SP.. 8 *. -.5.5 DETIL UNLESS OTHERWISE SPECIFIED Dimentions are in: mm Surface Finish: N6 Linear Tolerances: ±.5 deg ll Chamfer:. mm x 5.5min No Part Description QTY. Included encoder EPK Included Kit -8 Kit, x Encoder clamps Nylon M-DS5- Optional Shaft End installation kit Critical dimensions marked with * Washer DIN5-. Screw DIN 798 Mx5 Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel 7
bsolute Position V UG 8 Deep, Shaft - MID installation (step).5..7 5.5*. 6 -.*.5. C. X 5 C M 6 7. -.5 * 5.6.5 6 5.5. SECTION - SECTION C-C HOLES M EQ.SP.. 9.8 *. -.5.5 DETIL.5min.5 REF 5.5 -. UNLESS OTHERWISE SPECIFIED Dimentions are in: mm Surface Finish: N6 Linear Tolerances: ±.5 deg ll Chamfer:. mm x 5 No Part Description QTY. Included encoder EPK5 Included Kit M Kit, x Encoder clamps St. St. M-DS5- Optional Shaft End installation kit Washer DIN5-. Critical dimensions marked with * Screw DIN 798 Mx5 Netzer Precision Motion Sensors Ltd. Misgav Industrial Park, P.O. ox 59 D.N. Misgav, 7 Israel 8