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Summary of Contents for Fuji Electric PXZ Series
- Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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Page 2: Table Of Contents
MODEL CONFIGURATION PXZ SERIES P X Z Operation Manual Front panel size Code 1/16 DIN 1/8 DIN 72mm 1/4 DIN Kinds of input Code Thermocouple (°C) Thermocouple (°F) RTD/Pt100 (°C) RTD/Pt100 (°F) 4-20mA DC, 1-5V DC 0-20mA DC, 0-5V DC... -
Page 3: Introduction
INTRODUCTION SAFETY PRECAUTIONS Thank you for purchasing the Fuji Electric PXZ controller. All of these Before using this product, the user is requested to read the following controllers are PID Autotune controllers that employ Fuji Electric’s precautions carefully to ensure safety. The safety requirements are patented fuzzy logic algorithms. -
Page 4: Specifications
SPECIFICATIONS 2-position action for cooling: 0.5% FS ________________________________________________________ Anti-reset wind-up 0-100% FS, setting in 1 E.U. steps, auto setting with auto-tuning ________________________________________________________ INPUT RANGE TABLE: Overlap/dead band ±50% of heating proportional band ________________________________________________________ ________________________________________________________ Input Signal Input Range Input Range Remarks Input sampling cycle 0.5 sec... - Page 5 GENERAL SPECIFICATIONS STRUCTURE _______________________________________________________ _______________________________________________________ Rated voltage 85-264V AC or 24V AC/DC Mounting method Panel flush mounting or surface mounting _______________________________________________________ Surface mounting: PXZ-4 type only Power consumption 10VA or less (100V AC) _______________________________________________________ 15VA or less (240V AC) _______________________________________________________ External terminal PXZ-4 type: 8-pin or 11-pin socket Insulation resistance...
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Page 6: Outer Dimensions And Panel Cutout Size
OUTER DIMENSIONS AND PANEL CUTOUT SIZE INSTALLATION PXZ 4 NEMA 4X Integrity The front side of this instrument conforms to NEMA 4X. To ensure the 85.7 71.5 waterproofness between the instrument and the panel, use the gasket that is provided with the unit according to the installation procedure described below. -
Page 7: Wiring Instructions
WIRING INSTRUCTIONS *Voltage/ PXZ7 Current input Be sure to use the rated power supply voltage and polarity (viewing from the back PXZ4 socket type (standard) Current output, of instrument) SSR/SSC driving output Alarm 1 T.C. Current output, SSR/SSC driving output –... - Page 8 • Set the proportional time cycle parameter, “TC” to 30 secs. or more. • Use of “Z-trap” (manufacturer: Fuji Electric Co.) is recommended to protect the relay against switching surges and to ensure the prod- uct’s long life.
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Page 9: Front Panel Description
FRONT PANEL DESCRIPTION FRONT PANEL OPERATION The PXZ controller programming menu consists of two blocks— PRIMARY (SETPOINT) MENU and SECONDARY (SYSTEM) MENU. At C1 C2 H L HB power up, the controller will be in the operational mode– process variable (PV), in the case of PXZ4, and both process variable and set- point variable (SV), in the case of PXZ-5, 7, 9 will be displayed. -
Page 10: Autotuning
AUTOTUNING PRIMARY MENU SETTINGS PARAMETER DESCRIPTION Before initiating the autotune function, first decide if you would like to autotune at setpoint or 10% of full scale below setpoint. Set the Main Setpoint Variable: The main setpoint variable is setpoint (SV), alarms (AL, AH) and the cycle time (TC). Bring your the control point you wish to maintain. - Page 11 Low Alarm Setpoint: The Low Alarm Setpoint is that Hysteresis: The Hysteresis is that area around the main point of the process below which, the low alarm output setpoint where the output does not change condition. relay is energized. If the alarm type, programmed in the That area or deadband is intended to eliminate relay secondary menu, includes an absolute value for the chatter at setpoint for On/Off control applications.
- Page 12 Deadband/Overlap: The Deadband/Overlap is that per- Autotuning: Autotuning is the automatic calculation centage of the heating side of the proportional band and entering of the control parameters (P, I and D) into where the heating (output #1) and the cooling (output memory.
- Page 13 Table of Ramp/Soak Modes Lock-out: This function enables or disables changing the settings of parameters. MOD Power on start Output on END Output on OFF Repeat function Code: Going on control Going on control 0 - All parameter settings are changeable Going on control Going on control 1 - All parameter settings are locked;...
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Page 14: Secondary Menu
SECONDARY MENU SETTINGS P-dF Input Filter Constant: The Input Filter is used to filter out the quick changes that occur to the process vari- able in a dynamic or quick responding application P-n1 Control Action & Sensor Burn-out Protection: The which makes the PXZ control erratically. - Page 15 Table of Alarm Action Type Codes SCALING THERMOCOUPLE AND RTD(Pt100) INPUT RANGES Example: Program a J thermocouple for 50 to 500 ° F ALM1 ALM2 Alarm type Action diagram Input Type Minimum/Maximum Range 32 ... . .1472 °F No alarm J Thermocouple Absolute...
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Page 16: Error Messages
grammed input range. ADJ0 Input Calibration: This function is used for input cali The input range can be anywhere between -1999 and ADJS bration by the user in a simple manner. Calibration is 9999 units and must be programmed in the lower limit effected by applying signal for zero and span points of of input range and the upper limit of input range para- the input range being used and then by setting errors. -
Page 17: Appendix A: Autotuning
APPENDIX A The PXZ then reads the reaction of these test signals on the process. Keep in mind that every process is different and therefore every reac- tion to the test signals is different. This is why PID parameters are not Autotuning the same for different processes. -
Page 18: Appendix B: Manual Tuning
APPENDIX B al band too small, however, can lead to over-responsiveness leading to process oscillation. Manual Tuning A proportional band which is correct in width approaches main set- point as fast as possible while minimizing overshoot. If a faster Tune the PXZ controller if any of the following occurs: approach to setpoint is desired and process overshoot is not a prob- lem, a smaller or narrower proportional band may be used. - Page 19 Integral Time is the speed at which the controller corrects for offset. Tuning A short integral time means the controller corrects for offset quickly. Tuning the PXZ, as with any PID loop, requires tuning each parameter If the integral time is too short, the controller would react before the separately and in sequence.
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Page 20: Appendix C: Heater Break Option
APPENDIX C Time Constant Heater Break Option The Heater Break Option is used to detect heater break conditions Time and to energize an alarm relay when such conditions exist. In most cases, the option is used to detect the failure of one or more zones in 4. -
Page 21: Appendix D: Heat/Cool Option
Wiring and Setting: APPENDIX D 1. Choose the correct current sensing Heat/Cool Option Connection to PXZ transformer based on the maximum (Polarity not important) current usage of the heater. With the Heat/Cool Option, the PXZ can control a temperature appli- Hot lead to Heater 0 - 30 Amps (part # CTL-6-SF) cation with one input at one main setpoint using two outputs, a heat-... - Page 22 5. If the cycle times of one or both outputs are long and the process dynamic, there is a good chance that both outputs will be cycling on and off at the same time around main setpoint. This is evident if one or both outputs are relays.
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Page 23: Quick Reference
PXZ QUICK REFERENCE PXZ QUICK REFERENCE Secondary Menu Primary Menu Parameter Range Description Default Parameter Range Description Default settings settings settings settings ProG oFF/rUn/HLd Ramp/soak command dSP1-1 P-n1 0 -19 Control Action code † dSP5-4 0.0 - 999.9%FS Proportional band dSP1-2 P-n2 0 - 16... - Page 24 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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