New-generation PXF Series Digital Temperature Controller PXF mm PXF mm PXF mm Features Largest bright color LCD in the industry High speed sampling : 0ms Fast processing : 00ms Universal input The best-in-class compact : mm depth Multidrop master fuction (option) B-E-00a
Control output indicator Alarm output (DO) indicator Manual operation indicator Process value (PV) Ramp/soak status PID auto tuning indicator Set value (SV) Parameter number MV Bar graph User key Select key Up key Digit selector Down key Tallest PV characters in the industry Universal input Optimal bright and clear white PV display PXF mm (PXF: mm PXF: mm) input depth: mm Temperature Thermocouple RTD Pressure Flow rate to V DC, etc to 0 ma DC, etc Easy switchover by parameter setting Multidrop master function Cooperative operation function SV can be transmitted to multi-pxfs through communication Synchronous temperature rise control is available in combination with -degrees-of-freedom PID Bus-powered USB interface equipped Directly connectable to PC via USB port with optional cable No need of power supply to the PXF Multi-zone control Parameter copy function Parameter settings can be copied to multi-pxfs simultaneously and easily through communication Smart Ramp-Soak up to segments/ patterns Position feedback and servo control is available to valve control Simple power monitoring function/preventive maintenance alarm Free loader software - user-friendy key operation and easy to find parameters
Versatile controller for any applications Type PXF PXF PXF Appearance Front panel size mm mm mm Depth mm Display digits -digit (PV and SV) Character height (PV) mm mm mm Indication accuracy RTD input: ±0% ± digit or ±0 C± digit, whichever is larger Thermocouple input: ±0%± digit or ± C± digit, whichever is larger Voltage and current input: ±0%FS±digit Sampling rate 0 ms Input signal Process value input Universal input (RTD, thermocouple, voltage/current) Option Remote SV input Voltage/current Current transformer (CT) input Dedicated CT (0 to 00 A) Motorized valve position input - 00Ω to kω (-wire) Digital input (DI) Up to points Up to points Output signal Control output Relay contact SSR/SSC drive output Current output (linear) Voltage output (linear) Option Motorized valve control output Analog re-transmission output (voltage) Analog re-transmission output (current) Heater burnout alarm Operating days alarm Alarm/event contact output (DO) Up to points Up to points Control method ON/OFF control (*with auto tuning) PID control* Fuzzy control* -degrees-of-freedom PID control* Open-loop system supported (PID control) Self tuning Ramp/soak (simple program control) up to steps Option Heating/cooling control* Motorized valve control Function Number of PV/PID patterns Up to SV/PID switchover Soft start Simple power-monitoring Operating days Manual operation User key Communication Loader interface Option RS- (MODBUS) Power supply voltage 00 to 0 V AC, 0/0 Hz Option V DC/AC Power consumption 0 VA MAX VA MAX VA MAX Screw terminals for external connection M Note: Some functions may be unavailable depending on the model For more detail, please refer to the specifi cations
Advanced control functions Parameter setting is available using the front keys or a PC with loader software Standard functions On/Off control PID control with auto tuning Fuzzy control with auto tuning -degrees-of-freedom PID control with auto tuning Open-loop supported PID control Self tuning Ramp soak function (simple program control) Optional functions Heating/cooling control with auto tuning Motorized valve control On/Off control When process value (PV) is below the set value (SV), output is turned on and the heater is energized as shown below When PV is above SV, output is turned off and the heater is de-energized In this way, output is turned on/off repeatedly with respect to the SV to keep the temperature constant This method of control is called on/off action (-position action) * When 0 is assigned to parameter P, the on/off action will be selected PID control with auto tuning Typical PID control Overshoot may occur due to external disturbance Fuzzy control with auto tuning Fuzzy control is used to suppress overshoot so that the response to external disturbance is improved By monitoring PV, overshoot is suppressed with startup time remaining unchanged Also, disturbance can be settled quickly Comparison between fuzzy control and conventional control -degrees-of-freedom PID control with auto tuning This function achieves stable control against external disturbances, while suppressing overshoot and undershoot at startup or at SV change ) Fuzzy control Conventional control ) Open-loop supported PID control Reduces overshoot in the processes where the control target is turned off and then on again Self tuning At power up, SV change, or during external disturbance, tuning is made automatically so that the PID parameters are re-optimized External disturbance Set value change Power on Note: For some objects of control, PID values can not be optimized
Ramp soak function (simple program control) Function of automatically changing the set point value with the elapsing of time, in accordance with the preset pattern, as shown below This function is capable of programming program patterns Max steps Basic functions [h min] or [min s] Guarantee soak Repeat action PV start Delay start Power failure recovery Number of steps and patterns Steps Patterns Operation Start/stop/suspension can be performed by various ways (a user key, parameter setting, digital input, or communication) Temperature gradient control of furnace For control in a heat pattern PID auto tuning PID parameters are automatically set by the controller's measurement and computation function This instrument provides types of auto-tuning functions; the standard type (auto-tuning with SV used as reference) and the low SV type (auto-tuning with the value 0% below SV used as reference) Temperature control of plastic molding machine Start/stop of auto tuning can be commanded externally Heating/cooling control (option) By a single controller, both heating and cooling control output are obtained Heating side Deviation (-) Output Cooling side Coefficient 0 Coefficient 0 Coefficient 0 Set value (SV) Deviation Heating side Cooling side () proportional band proportional band Proportional band (P) Heating side Deviation (-) Overlap band Output Dead band Set value (SV) Deviation () Energy saving in livestock barns Both heating and cooling are controlled with only one temperature controller utilizing its control outputs Power consumption can be curbed by controlling a cooling fan motor with inverter Cooling side Note: For the cooling side proportional band, set a coeffi cient with respect to the heating side proportional band (ON-OFF control if coeffi cient is 0) Motorized valve control (option) Position feedback control based on motorized valve position signal Servo control without valve position signal Heating/cooling control of air conditioner
Even more functions which extend the possibilities of temperature controller Standard functions SV and PID selection Soft start Simple power-monitoring Operating days alarm Optional functions Re-transmission output Remote SV input Heater burnout alarm Alarm output Digital input RS- Communication SV and PID selection Allows you to register up to sets of SV setting and PID setting, and to switch among them, enabling optimum PID setting for changing process, materials, or PV You can perform SV selection only, or PID selection only Soft start This function controls the maximum output produced when turning on the equipment (including the temperature controller) This function is useful for effects such as suppressing the heater output during equipment startup, or lightening the load MV with soft start Simple power-monitoring Operating days alarm Calculates the energy consumption by connecting an optional current transformer (See page 0) Operating days indication Operating days alarm output This function is useful for preventive maintenance because it let you know the appropriate time for maintenance work Re-transmission output (option) A cost corresponding to one temperature sensor can be reduced just by connecting a PV transfer signal to a recorder Output signal (any one of the followings): 0 to 0 ma DC, to 0 ma DC, 0 to V DC, to V DC, 0 to 0 V DC, to 0 V DC Output type: process value (PV), set value (SV), control output (MV), or PV-SV (DV) PV transfer output Remote SV input (option) SV can be configured externally Input signal (any one of the followings): 0 to V DC, to V DC, 0 to 0 V DC, 0 to 0 ma DC, to 0 ma DC Input impedance: About MΩ Recorder PHR
Heater burnout alarm (option) A current transformer (CT) is required (See page 0, optional items) The power supply voltage and the alarm action point need to be configured beforehand Available only for single-phase heater Not available when using thyristor phase angle control [Example of PXF/PXF] Digital input (option) For SV changeover, AT startup, timer startup, program selection, start/stop/reset, PID changeover, etc Changeover of set values (front SV, SV to SV) can be commanded externally Alarm output (option) Up to points RS- Communication (option) High-speed communication (user address mapping function) You can make a list of your most necessary parameters (max words) to quickly acquire those data at a time Communication speed: max kbps Programless communication PXF can be connected with PLC without a program Address 000 PV 000 SV(Read) 000 DV 000 MV 000 SV(Write) 000 STBY 000 AT 000 P 000 I 000 D Parameter Max words Address Parameter 000 PV 000 SV(Read) 000 SV(Write) 000 MV 000 P 000 I 000 D PXFs can be connected with PC, programmable operation display, or PLC PXF PXF PXF
Specifications General specifications Power supply voltage 00 (-%) V to 0 (0%) V AC, 0/0Hz V DC/AC (±0%) Power consumption Type 00 to 0 V AC V DC/AC PXF 0 VA MAX VA MAX PXF & VA MAX VA MAX Insulation resistance 0 MΩ or more (at 00 V DC) Withstand voltage Power source all terminals: 00 V AC for min Relay contact output all terminals: 00 V AC for min Between others: 00 V AC for min Process value input Number of input Input setting Programmable scale Input signal See Table (Universal input: thermocouple/rtd/voltage/current) Standard measurement See Table range and input type Indication accuracy (at Ta = C) Thermocouple input: either ± C ± digit or ±0% ± digit of indicated value, whichever is larger *except: Thermocouple B: 0 to 00 C: no accuracy assurance Thermocouple R: 0 to 00 C: ± C ± digit All thermocouples: -00 to -00 C: ± C ± digit RTD input: ±0 C ± digit or ±0% ± digit of indicated value, whichever is larger mv input, voltage input, current input: ±0%FS ± digit Temperature effect on ±0%FS/0 C sensitivity Indication resolution See Table Sampling rate 0 ms Input impedance Thermocouple, mv input: MΩ or more Current input: 0 Ω or less (built-in diode) Voltage input: About MΩ Variation by signal source resistance Allowable wiring resistance Allowable input voltage: Noise reduction ratio Input correction: Overrange underrange Thermocouple, mv input: ±0%FS ± digit per 00 Ω Voltage input: ±0%FS ± digit per 00 Ω RTD: 0 Ω MAX (per wire) Remote SV input (option) DC voltage input: within ± V Current input: within ± ma Thermocouple, RTD, mv input: within ± V Normal mode: 0 db (0/0 Hz) Common mode: 0 db (0/0 Hz) Between input and power supply: ± C at 0 V AC, 0/0 Hz (a) User adjustment: ±0%FS for each of zero and span point (b) Process value shift: ±0%FS (c) Input fi lter: 00 to 00 s (fi lter OFF if set at 00) (d) Square root extraction: -0 to 0% (OFF if set to -0%) Out of the range between - to 0% of FS (accuracy not guaranteed between - and 0, and between 00 and 0%FS) *except: JPt (- C to 000 C) input: Out of the range between Pt (-00 C to 0 C) input: -% to 0% of FS 0 to 0 V DC input: Thermocouple E: Out of the range between - to 0% of FS Number of input Input signal Voltage: 0 to V DC/ to V DC/0 to 0 V DC Current: 0 to 0 ma DC/ to 0 ma DC (an external 0-ohm resistor is required for current input) Input impedance Approx MΩ Sampling rate 0 ms Current transformer (CT) input (option) Input type Single phase CT, point For A to 0 A: CTL--S-H For 0 A to 00 A: CTL--S- Range of detected current A to 00A Detected current accuracy Setpoint ±%FS Detected current resolution 0 A ON time necessary for 00 ms MIN detection Digital input (DI) (option) Number of point up to (PXF: up to ) Specification No-voltage contact or transistor input Contact capacity: V DC, about ma (per point) Input judgment: ON voltage: V DC or lower OFF voltage: V DC or higher Sampling pulse width 0 ms MIN Function Remote mode selection, SV changeover, control standby, AT startup, timer startup, alarm unlatch, program selection, start/stop/reset, PID switching (normal/reverse), etc Valve position feedback signal (Potentiometer) input (option) Model Resistance range Resolution Accuracy Temperature effect on sensitivity Burnout function PXF and PXF (not available for PXF) 00 Ω to kω (three-wire) 0%FS ±0%FS ±0%FS/0 C Not provided Control output Number of point Type Select among to below Alarm output (DO) (option) Up to ( points: Heating/cooling control) Relay contact output (SPST) Proportional cycle: to 0 s Contact structure: SPST contact *SPST: single pole single throw Contact capacity: 0 V AC/0 V DC, A (resistive load) Minimum ON/OFF current: 0 ma ( V DC) Mechanical life: 0 million operations MIN (00 operations/min) Electrical life: 00,000 operations MIN (rated load) Relay contact output (SPDT) Proportional cycle: to 0 s Contact structure: SPDT contact *SPDT: single pole double throw Contact capacity: 0 V AC/0 V DC, A (resistive load) Mechanical life: 0 million operations MIN (00 operations/min) Electrical life: 00,000 operations MIN (rated load) SSR/SSC drive output Proportional cycle: to 0 s ON voltage: V DC (between 0 and V DC) OFF voltage: 0 V DC or lower Maximum current: 0 ma DC Load resistance: 00 Ω MIN Current output (0 to 0 ma DC/ to 0 ma DC) Accuracy: ±%FS Load resistance: 00 Ω MAX Voltage output (0 to V DC/ to V DC/0 to 0 V DC/ to 0 V DC) Accuracy: ±%FS Load resistance: 0 kω MIN Motorized valve control output Contact structure: SPST contacts without interlock circuit *SPST: Single Pole Single Throw Contact capacity: 0 V AC/0 V DC, A (resistive load) Minimum ON/OFF current: 00 ma ( V DC) Mechanical life: 0 million operations MIN (00 operations/min) Electrical life: 00,000 operations MIN (rated load) Number of outputs Relay contact output: up to (shared common) PXF: up to up to (independent common) PXF: up to Output specifi cations Relay contact output Contact structure: SPST contact *SPST: single pole single throw Contact capacity: 0 V AC/0 V DC, A (resistive load) Minimum ON/OFF current: 0 ma ( V DC) Mechanical life: 0 million operations MIN (00 operations/min) Electrical life: 00,000 operations MIN (rated load) Output functions Alarm output (see "Alarm function"), main unit control mode output, program status output, control output and, etc Output cycle 00 ms Re-transmission output (option) Number of point Type Current/voltage output (0 to 0 ma DC/ to 0 ma DC/0 to V DC/ to V DC/0 to 0 V DC/ to 0 V DC) Guaranteed output range: 0 to ma DC/0 to 0 V DC Accuracy: ±0%FS (±%FS at ma or smaller) Resolution: 0,000 MIN Load resistance: 00 Ω MAX (current), 0 kω MIN (voltage) Output cycle 00 ms Output contents PV, SV, DV, MV Additional function Scaling function Display unit Type Indication contents Luminance setting Setting section Type and number of keys Control functions LCD (with backlight) Process value indication: -segment, -digit [white] Setpoint indication: -segment, -digit [green] Screen No indication: -segment, -digit [orange] Indication status: indicator lamps possible ( steps) Sheet type keys (with emboss), keys ON/OFF control Refer to page PID control Dual control (heating/cooling) PID parameters determination: Auto tuning Fuzzy PID control Dual control (heating/cooling) PID parameters determination: Auto tuning Self tuning control Refer to page PID control Dual control (heating/cooling) PID parameters determination: Auto tuning -degrees-of-freedom PID PID parameters determination: Auto tuning Position proportional PID (servo) with position feedback Control parameters Full stroke time: 0 seconds MIN (not available for PXF) Proportional band (P) 0% to % Integration time (I) 0 to 00 s (invalidated when I = 0) Differential time (D) 00 to s (invalidated when D = 0) Control cycle 00 to 00 ms (in 00 ms), to s (in seconds) Anti-reset windup 0 to 00% of measurement range Hysteresis band 0% of measurement range (at -position control only) Number of SV and PID patterns : Changed by any of parameter setting, digital input, communication, user function keying, zone change
Control mode Mode Mode changeover: Alarm function Number of alarm setting points Alarm type Heater current alarm function (optional) Detectable range Detected current resolution Setting resolution Hysteresis Auto/Manual/Remote *During -position control in Manual mode, -position manual operation with MV = 00% or 0% is operated Auto <=> Manual: Balancelessbumpless Auto/ManualRemote: Balancebumpless Auto/ManualRemote: Balancebumpless Up to (depends on the number of DO) Process value (upper limit/lower limit, absolute/deviation, range), main unit error, etc (non-excitation, delay, latch, timer function option provided) *Current detector(ct) is to be prepared separately (see page 0) A to 00 A 0 A 0 A 00 to 000 A RS- communication (option) No of points Physical specifi cations EIA- Protocol Modbus-RTU Communication method Half-duplex bit serial, asynchronous communication Code type Data length: data bits Parity: Odd, even, none Baud rate 00 bps, 00 bps, kbps, kbps Connection Up to units connectable including multidrop master function Communication Up to 00 m (total connection length) distance Additional functions Cooperative operation The function in which slave devices can be operated via master device by connecting several temperature controllers Programless communication The function in which a temperature controller can be connected to a PLC without program Supported PLCs: Mitsubishi PLC Q series Siemens PLC S series Operation and storage conditions Operating temperature -0 C to 0 C Storage temperature -0 C to 0 C Operating/storage 0%RH or less (Non condensation) humidity Warm-up time 0 min MIN Vibration during transportation: m/s ( G) or less Impact during transportation: m/s (0 G) or less Structure Mounting method Panel mount External terminals Screw terminals, M Case Material: ABS, PPO Non-combustibility grade: ULV-0 equivalent Color: Black Protection structure Panel front side: IP, NEMA-X equivalent (When the panel is mounted using our genuine packing Not water-proof if mounted closely together) Body: IP0 equivalent (slits on top and bottom) Terminals: IP00 equivalent Terminal cover can be provided optionally Dimensions Refer to page Weight PXF: approx 00 g, PXF: approx 0 g, PXF: approx 0 g User customize function and Program (ramp/soak) function Number of program steps Control option: Basic functions Memory backup User functions User key assignment Password function -level password steps x patterns, steps x pattern, steps x pattern, or steps x patterns ( step = segments) Control by digital input Status output by digital output [] Segment time can be set in "Hour, Minutes" or "Minutes, Seconds" Guarantee soak Repeat action PV start Delay start Power restoring function EEPROM Auto/Manual change, Standby ON/OFF change, remote SV change Simple power-monitoring function and operating days alarm Simple powermonitoring function Operating days alarm Processing at power failure Memory protection Self-diagnosis By connecting a current transformer (to be prepared separately), electric power consumption of the heater can be displayed (Electric power is calculated based on the fi xed voltage value you set) Current detector(ct) is to be prepared separately (see page 0) Current detection range: A to 00 A Indicates the number of days the controller has been operated and activates alarm output (optional) when it exceeds the setpoint Useful for preventive maintenance because it let you know the appropriate time for maintenance work Protect by non-volatile memory Method: Program error supervision by watchdog timer Table input type and range Input type Code (PvT) Measurement range Minimum input [ C] increment [ C] Pt 00 PT 00 to 00 0 PT 00 to 000 0 PT 00 to 000 0 PT 00 to 000 0 PT -00 to 000 0 PT -000 to 000 0 PT - to 000 0 PT -00 to 0 DC voltage 0 to V DC 0-V to V DC -V 0 to 0V DC 0-0 to 0V DC -0 0 to 00mV DC MV DC current 0 to 0mA DC 0-0 to 0mA DC -0 - to (Range where scaling is allowed) - Input type Code (PvT) Measurement range Minimum input [ C] increment [ C] Thermocouple J J 00 to 000 0 J -00 to 000 0 J 00 to 000 0 J -00 to 000 K K 0 to 00 0 K -00 to 000 0 K 00 to 000 0 K -00 to 00 R R 0 to 00 B B 0 to 00 S S 0 to 00 T T - to 000 0 T - to 000 0 E E 00 to 000 0 E -00 to 000 0 E -00 to 00 L L -00 to 0 U U - to 000 0 U -00 to 00 N N -00 to 00 W W 0 to 00 PL-II PL- 0 to 00
ORDERING CODE Optional Items Name Model Current detector (CT) A to 0 A 0 A to 00A ZOZCCTL--S-H ZOZCCTL--S- Terminal cover ZZPPXR-A0 Parameter loader interface cable ZZPTQ0C Shunt resistor (0 Ω±0%) ZZPPXR-A0 Panel mounting adapter for replacement from PXR to PXF ZZPTQ0C Outline diagram of optional items Panel mounting adapter for replacement from PXR to PXF (ZZP*TQ0C) Panel mounting adapter How to install PXF with the adapter Current detector (CT) 0 ø ø 0 ø 0 0 0 0 ø M, depth 0 0 0
Optional Items Name Current detector (CT) A to 0 A 0 to 00A Terminal cover (note) Parameter loader interface cable Shunt resistor (0 Ω±0%) Note: For PXF, two covers are necessary for one unit Scope of delivery Controller x Instruction manual x Model ZOZCCTL--S-H ZOZCCTL--S- ZZPPXF-B00 ZZPTQ0C ZZPPXR-A0 Panel mounting adapter x Water-proof packing x INSULATION BLOCK DIAGRAM PXF PXFPXF
x mm <PXF> CONNECTION DIAGRAM Standard type Motorized valve control type 0 A B B AL AL AL AL AL AL AL AL AL Non-C CT No NC No NC 0 0 0 0 0 0
x mm <PXF> x mm <PXF> Standard type Motorized valve control type - - - 0 0 0 0 A B B 0 0 0 0
OUTLINE DIAGRAM PXF Outer dimensions Panel cutout 0 0 Panel cutout 0 0 For mounting n units MIN MIN For close mounting in horizontal direction ( n units) (Waterproof property is lost in this case) 0 0 0 n-0 This mounting does not meet NEMA-X/IP (front waterproof specification) (Because the packing cannot be used in horizontal close mounting) * Dimensions include coating thickness PXF Outer dimensions Panel cutout 0 0 0 0 0 MIN * Dimensions include coating thickness PXF Outer dimensions Panel cutout * Dimensions include coating thickness Rear view <PXF> <PXF> <PXF> For mounting n units MIN For close mounting in horizontal direction ( n units) (Waterproof property is lost in this case) 0 0 0 ( n-) 0 This mounting does not meet NEMA-X/IP (front waterproof specification) (Because the packing cannot be used in horizontal close mounting) 0 0 0 0 00 MIN MIN
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SPECIAL ATTENTION NEEDED for all Digital Temperature Controllers (Please read carefully the following instructions) Over-temperature Protection Any control system design should take into account that any part of the system has the potential to fail For temperature control systems, continued heating should be considered the most dangerous condition, and the machine should be designed to automatically stop heating if unregulated due to the failure of the control unit or for any other reason The following are the most likely causes of unwanted continued heating: ) Controller failure with heating output constantly on ) Disengagement of the temperature sensor from the system ) A short circuit in the thermocouple wiring ) A valve or switch contact point outside the system is locked to keep the heat switched on In any application where physical injury or destruction of equipment might occur, we recommend the installation of independent safety equipment, with a separate temperature sensor, to disable the heating circuit in case of overheating The controller alarm signal is not designed to function as a protective measure in case of controller failure Authorized Distributor: WESCHLER INSTRUMENTS phone: 00-0-0 0--0 fax: 00-0-0 0--00 wwwweschlercom info@weschlercom Authorized Distributor: