® EZ-ZONE PM User’s Manual PID Controller Models TOTAL CUST CUS TOMER SATISF TISFA ACTI CTIO ON 3 Year Warranty ISO 9001 Registered Company Winona, Minnesota USA 1241 Bundy Boulevard., Winona, Minnesota USA 55987 Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507 http://www.watlow.com 0600-0058-0000 Rev. C March 2008 Made in the U.S.A. $15.
Safety Information • Complete model number We use note, caution and warning symbols throughout this book to draw your attention to important operational and safety information. • All configuration information A “NOTE” marks a short message to alert you to an important detail. A “CAUTION” safety alert appears with information that is important for protecting your equipment and performance. Be especially careful to read and follow all cautions that apply to your application.
TC Table of Contents Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Standard Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chapter 2: Install and Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Chapter 3: Keys and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Chapter 4: Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Attention Codes . .
1 Chapter 1: Overview The EZ-ZONE ® PM takes the pain out of solving your thermal loop requirements. Watlow’s EZ-ZONE ® PM controllers offer options to reduce system complexity and the cost of controlloop ownership. You can order the EZ-ZONE ® PM as a PID controller or an over-under limit controller, or you can combine both functions in the PM Integrated Limit Controller.
A Conceptual View of the PM The flexibility of the PM’s software and hardware allows a large range of configurations. Acquiring a better understanding of the controller’s overall functionality and capabilities while at the same time planning out how the controller can be used will deliver maximum effectiveness in your application. It is useful to think of the controller in three parts: inputs; procedures; and outputs.
EZ-ZONE® PM PID Model 1/16 & 1/32 DIN – Input/Output (no communications options 2 to 6) Universal Sensor Input, Configuration Communications, Red/Green 7-Segment Display Output Functions Input Functions input sensor none, idle set point, tune, silence alarm, manual/auto mode, control outputs off, lock keypad, force alarm, TRU-TUNE+® disable loop & alarms off, profile disable, profile hold/resume, profile start, profile start/stop, restore user settings Network remote user interface, personal computer, pr
2 Chapter 2: Install and Wire Dimensions 1/32 DIN 15.9 mm 0.63 in 53.3 mm 2.10 in 101.6 mm 4.00 in 31.2 mm 1.23 in 30.9 mm 1.22 in Side Front Power 485 Comms Dig I/O 5 & 6 C A Output 1 Output 2 Input 1 Back Top 45.2 mm (1.78 in) 22.4 mm (0.88 in) Recommended panel spacing panel thickness 1.53 to 9.52 mm (0.060 to 0.375) 21.6 mm (0.85 in) 21.6 mm (0.
Dimensions 1/16 DIN 15.8 mm (0.62 in) 101.6 mm (4.00 in) 53.3 mm (2.10 in) 53.3 mm (2.10 in) Side Front 51.2 mm (2.02 in) L1 L3 K1 K3 99 J1 J3 CF 98 L2 L4 CD K2 K4 CE T1 T2 B5 S1 S2 D6 R1 R2 D5 Back Top 45.2 mm (1.78 in) Recommended panel spacing 45.2 mm (1.78 in) panel thickness 1.53 to 9.52 mm (0.060 to 0.375) 21.6 mm (0.85 in) 21.6 mm (0.
Installation install the controller. The seal system is compressed more by mating the mounting collar tighter to the front panel (see picture). If you can move the case assembly back and forth in the cutout, you do not have a proper seal. panel bezel retention collar gasket case The tabs on each side of the mounting collar have teeth that latch into the ridges on the sides of the controller.
Returning the Controller to its Case 1. Ensure that the orientation of the controller is correct and slide it back into the housing. Note: The controller is keyed so if it feels that it will not slide back in do not force it. Check the orientation again and reinsert after correcting. 2. Using your thumbs push on either side of the controller until both latches click. Chemical Compatibility This product is compatible with acids, weak alkalis, alcohols, gamma radiation and ultraviolet radiation.
Slot A Output Terminal Function Configuration common (Any switched dc output can use this common.
Controller Power Supply 12 to 40VÎ (dc) 24 to 28VÅ (ac) 85 to 264VÅ (ac) Safety Isolation Low voltage power bus and internal bus No Isolation Digital Inputs and Outputs 5 & 6 No Isolation Switched DC, Open Collector, Process Outputs No Isolation Analog Input 1 Safety Isolation Mechanical Relay, Solid-state Relay & No-arc Relay Outputs Low-voltage Isolation EIA-485 Communications Port Low-voltage Isolation: 42V peak Safety Isolation: 1,528VÅ (ac) EZ-ZONE® PM isolation blocks.
Ó Low Power Slot C 98 Warning: Use National Electric (NEC) or other country-specific standard wiring and safety practices when wiring and connecting this controller to a power source and to electrical sensors or peripheral devices. Failure to do so may result in damage to equipment and property, and/or injury or loss of life.
Ó Input 1 Thermocouple Slot A L1 Warning: Use National Electric (NEC) or other country-specific standard wiring and safety practices when wiring and connecting this controller to a power source and to electrical sensors or peripheral devices. Failure to do so may result in damage to equipment and property, and/or injury or loss of life. • • • • 20 Ω maximum source resistance >20 MΩ input impedance 3 microampere open-sensor detection Thermocouples are polarity sensitive.
Switched DC • 30 mA dc maximum supply current • short circuit limited to <50 mA • 22 to 32VÎ (dc) open circuit voltage • Use dc- and dc+ to drive external solid-state relay.
Ó Warning: Use National Electric (NEC) or other country-specific standard wiring and safety practices when wiring and connecting this controller to a power source and to electrical sensors or peripheral devices. Failure to do so may result in damage to equipment and property, and/or injury or loss of life. Output 1 Solid-state Relay, Form A Slot A normally open common • 0.
Ó Warning: Use National Electric (NEC) or other country-specific standard wiring and safety practices when wiring and connecting this controller to a power source and to electrical sensors or peripheral devices. Failure to do so may result in damage to equipment and property, and/or injury or loss of life. Output 2 Solid-state Relay, Form A Slot A L1 K1 J1 normally open common L2 K2 T1 S1 R1 • 0.
Ó Warning: Use National Electric (NEC) or other country-specific standard wiring and safety practices when wiring and connecting this controller to a power source and to electrical sensors or peripheral devices. Failure to do so may result in damage to equipment and property, and/or injury or loss of life. Wiring a Serial EIA-485 Network Do not route network wires with power wires. Connect network wires in daisy-chain fashion when connecting multiple devices in a network.
3 Chapter 3: Keys and Displays 1/16 DIN Upper Display: Temperature Units Indicator Lights: In the Home Page, displays the process value, otherwise displays the value of the parameter in the lower display. Indicates whether the temperature is displayed in Fahrenheit or Celsius. WATLOW EZ-ZONE® Output Activity: Zone Display: Number lights indicate activity of outputs 1 through 5. A flashing light indicates retransmit activity.
1/32 DIN Output Activity: Left (Upper) Display: In the Home Page, displays the process value, otherwise displays the value of the parameter in the lower display. Number lights indicate activity of outputs 1, 2, 5 and 6. A flashing light indicates retransmit activity. EZ -ZONE® Right (Lower) Display: Percent Units Indicator 1 2 5 6% Lights when the controller is displaying values as a percentage or when the openloop set point is displayed.
Navigating the EZ-ZONE® PM PID Controller 1/16 DIN WATLOW 1/32 DIN EZ-ZONE ® [``Ai] [`Set] WATLOW EZ-ZONE ® [``70] [``72] EZ -ZONE ® [`ai] [`set] 1 2 5 6% EZ -ZONE ® [`70] [`72] 1 2 5 6% Home Page from anywhere: Press the Infinity Key ˆ for two seconds to return to the Home Page.
4 Chapter 4: Home Page Default Home Page Parameters The Home Page is a customized list of as many as 20 parameters that can be configured and changed in the Custom Menu [CUSt] (Factory Page). The default list of nine parameters below includes the Active Process Value (value in upper display) and Active Set Point (value in lower display). The Attention [Attn] parameter only appears if there is an active message.
Display [Attn] Parameter Name Description Setting Attention An active message will cause the display to toggle between the normal settings and the active message in the upper display and [Attn] in the lower display. Your response will depend on the message and the controller settings. Some messages, such as Ramping and Tuning, indicate that a process is underway. If the message was generated by a latched alarm or limit condition, the message can be cleared when the condition no longer exists.
5 Chapter 5: Operations Page To go to the Operations Page from the Home Page, press both the Up ¿ and Down ¯ keys for three seconds. [``Ai] will appear in the upper display and [oPEr] will appear in the lower display. • Press the Up ¿ or Down ¯ key to move through the menus. • Press the Advance Key ‰ to move to a submenu. • Press the Up ¿ or Down ¯ key to move through the submenus. • Press the Advance Key ‰ to move through the parameters of the menu or submenu.
Display Parameter name Description Settings Range Default Appears If [``Ai] [oPEr] Analog Input Menu [`ain] [ Ain] Analog Input 1 Process Value View the process value. -1,999.000 to 9,999.000°F or units -1,128.000 to 5,537.000°C always [`i;Er] [ i.Er] Analog Input 1 Error Status View the cause of the most recent error. If the [Attn] message is [Er;i1] or [Er;i2], this parameter will display the cause of the input error.
Display Parameter name Description Settings Range Default Appears If [A;tSP] [A.tSP} Loop Autotune Set Point Set the set point that the autotune will use, as a percentage of the current set point. 50.0 to 200.0% 90.0 Heat Algorithm or Cool Algorithm (Setup Page) is set to PID. [`AUt] [ Aut] Loop Autotune Request Start an autotune. While autotune is active, the Home Page will display [Attn] [tUn1]. When the autotune is complete, the message will clear automatically.
Display Parameter name Description Settings [`A;Lo] [ A.Lo] Alarm (1 to 4) Low Set Point If Alarm Type (Setup Page, Alarm Menu) is set to: process - set the process value that will trigger a low alarm. deviation - set the span of units from the closed loop set point that will trigger a low alarm. -1,999.000 to 9,999.000°F or units 32.0°F or units -1,128.000 to 5,537.000°C 0.0°C Alarm Sides (Setup Page) is not set to High. [`A;hi] [ A.
Display Parameter name Description Settings Range Default Appears If [`S;ti] [ S.ti] Profile Status *Step Time Remaining View or change the time remaining for the current step. Step is displayed in seconds. If the time exceeds 9,999 seconds, the display will show 9,999 and remain there while the control continues to decrement internally. Once the remaining time is equal to or less than 9,999 the display will represent the actual seconds remaining.
6 Chapter 6: Setup Page Parameters Home Page Setup Page [~~p~]ň [~`A1]ň [~~~1]ň Ç È [~~Sp]<>Æ [~set]‰Æ [~~AI]‰Æ [~sen]‰Æ[~lin]‰Æ[`Rt;l]‰Æ[`s;lo]‰Æ[`s;hi]‰Æ[`r;lo]‰Æ[`r;hi]‰Æ[`P;EE]‰Æ[`P;EL]‰Æ[`FiL]‰Æ[`i;Er]‰Æ[`dEC]‰Æ Input 1 Submenu <Ç È> Hold both keys Analog Input for 6 seconds.
• Press the Advance Key ‰ to move through the parameters of the menu or submenu. • Press the Infinity Key ˆ to move backwards through the levels: parameter to submenu; submenu to menu; menu to Home Page. • Press and hold the Infinity Key ˆ for two seconds to return to the Home Page. To go to the Setup Page from the Home Page, press both the Up ¿ and Down ¯ keys for six seconds. [``Ai] will appear in the upper display and [`Set] will appear in the lower display.
Display Parameter Name Description [`P;EL] [ P.EL] Input 1 Process Error Low If the process value drops below this value, it will trigger an input error. -100.0 to 1,000.0 0.0 Sensor Type is set to Millivolts, Volts, Milliamps or Potentiometer 1 kΩ, and Error Enable is set to Low. [`FiL] [ FiL] Input 1 Filter Time Filtering smooths out the process signal to both the display and the input. Increase the time to increase filtering. 0.0 to 60.0 seconds 0.5 always [`i;Er] [ i.
Display [``Fn] [ Fn] Parameter Name Description Settings Digital Input (5 or 6) Function Select the function that will be triggered by a true state. Functions respond to a level state change or an edge level change.
Display Parameter Name Description Settings Range Default Appears If [`t;gn] [ t.gn] Loop TRU-TUNE+® Gain Select the responsiveness of the TRUTUNE+® adaptive tuning calculations. More responsiveness may increase overshoot. 1 to 6 Most to least responsive 3 Cool Algorithm or Heat Algorithm is set to PID and TRU-TUNE+® Enable is set to Yes. [t;Agr] [t.Agr] Loop Autotune Aggressiveness Select the aggressiveness of the autotuning calculations.
Display Parameter Name Description [`r;rt] [ r.rt] Loop Ramp Rate Set the rate for the set point ramp. Set the time units for the rate with the Ramp Scale parameter. 0 to 9,999°F or units 0 to 5,555.000°C 1.0°F or units 1.0°C [`L;SP] [ L.SP] Loop Low Set Point Set the low end of the set point range. -1,999.000 to 9,999.000°F or units -1,128.000 to 5,537.000°C -1,999.000°F or always units -1,128.0°C [`h;SP] [ h.SP] Loop High Set Point Set the high end of the set point range. -1,999.000 to 9,999.
Display Parameter Name Description Settings Range Default Appears If [`r;hi] [ r.hi] Output 1 Range High Set the maximum value of the retransmit value range in process units. When the retransmit source is at this value, the retransmit output will be at its Scale High value. -1,999.000 to 9,999.000°F or units -1,128.000 to 5,537.000°C 9,999.0°F or units 5,537.0°C a process output (PM _ _ _ F _-_ AAAA _ _) and Function is set to Retransmit. [`o;Lo] [ o.
Display Parameter Name Description [Alm] [`Set] Alarm Menu [```1] [Alm] Alarm 1 [```2] [Alm] Alarm 2 Settings [```3] [Alm] Alarm 3 Range Default Appears If [```4] [Alm] Alarm 4 [`A;ty] [ A.ty] Alarm (1 to 4) Type Select how the alarm will or will not track the set point. [`oFF] Off [PR;AL] Process Alarm [dE;AL] Deviation Alarm [`sr;a] [ Sr.A] Alarm (1 to 4) Source Select what will trigger this alarm.
Display [``Fn] [ Fn] Parameter Name Description Settings Function Key Digital Input Function Program the EZ Key to trigger an action. Functions respond to a level state change or an edge level change.
Display Parameter Name Description Settings Range Default Appears If [PCoL] [PCoL] Communications Protocol Set the protocol of this controller to the protocol that this network is using. [`Std] Standard Bus [Mod] Modbus RTU Modbus the controller includes Modbus RTU (PM6 _ _ _ _-1 AAAA _ _). [`Ad;S] [ Ad.S] Communications Address Standard Bus Set the network address of this controller. Each device on the network must have a unique address. 1 to 16 1 always Range depends on the model.
7 Chapter 7: Profiling Page Navigating the Profiling Page Profiling Page Home Page [~~p~] ˆ [~~p1] ˆ [~~Sp]‰ [FiLe]‰ Hold key for 3 seconds.
The Profiling Page allows you to enter your ramp and soak profile information. How to Start a Profile To go to the Profiling Page from the Home Page, press the Advance Key ‰ for three seconds, until [ProF] appears in the lower display and the profile number appears in the upper display. Press the Up ¿ or Down ¯ key to change to another profile. • Press the Advance Key ‰ to move to the selected profile's first step. • Press the Up ¿ or Down ¯ keys to move through the steps.
Display Parameter name Description Settings Range (Integer values for Modbus in parentheses.) Default Appears If [hoUr] [hoUr] Step Type Parameters Hours Select the hours (plus Minutes and Seconds) for a timed step. 0 to 99 0 Step Type is set to Time or Soak. [Min] [Min] Step Type Parameters Minutes Select the minutes (plus Hours and Seconds) for a timed step. 0 to 59 0 Step Type is set to Time or Soak.
Display Step Type Description Parameters in Step Type Profiling parameters appear if the controller includes profiling (PM _ R _ _ _-_ AAAA _ _). [``ti] [ ti] Step Types Time A Time Step controls at the Target Set Point and maintains two event output states for the designated time.
8 Chapter 8: Factory Page • Press the Infinity Key ˆ to return to the Home Page. To go to the Factory Page from the Home Page, press and hold both the Advance ‰ and Infinity ˆ keys for six seconds. • Press the Advance Key ‰ to move through the parameter prompts. • Press the Up ¿ or Down ¯ keys to change the parameter value. Note: Avoid continuous writes within loops. Excessive writes to EEPROM will cause premature EEPROM failure. The EEPROM is rated for 1,000,000 writes.
Display Parameter Name Description [CUSt] [FCty] Custom Menu [`PAr] [ PAr] [```1] [CUSt] Custom 1 Settings Range Default Appears If [``20] [CUSt] Custom 20 Custom Menu Parameter 1 to 20 Select the parameters that will appear in the Home Page. The Parameter 1 value will appear in the upper display of the Home Page. It cannot be changed with the arrow keys in the Home Page. The Parameter 2 value will appear in the lower display in the Home Page.
Display Parameter Name Description [SLoC] [SLoC] Lockout Menu Set Lockout Security Set the write security clearance level. The user can access the selected level and all lower levels. If the Set Lockout Security level is higher than the Read Lockout Security, the Read Lockout Security level takes priority.
Display Parameter Name Description Settings Range Default Appears If [ELi;S] [ELi.S] Calibration Menu Electrical Input Slope Adjust this value to calibrate the slope of the input value. -1,999.000 to 9,999.000 1.0 always [ELo;o] [ELo.o] Calibration Menu Electrical Output Offset Change this value to calibrate the low end of the output range. -1,999.000 to 9,999.000 0.0 the controller has a process output (PM ___F_-_ AAAA _ _). [ELo;S] [ELo.
9 Chapter 9: Features Saving and Restoring User Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Programming the Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Tuning the PID Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Manual Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Autotuning with TRU-TUNE+® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Inputs . . . . . . . .
Saving and Restoring User Settings Recording setup and operations parameter settings for future reference is very important. If you unintentionally change these, you will need to program the correct settings back into the controller to return the equipment to operational condition. After you program the controller and verify proper operation, use User Save Set [USr;S] (Factory Page, Diagnostics Menu) to save the settings into either of two files in a special section of memory.
Manual Tuning In some applications, the autotune process may not provide PID parameters for the process characteristics you desire. If that is the case, you may want to tune the controller manually. 1. Apply power to the controller and establish a set point typically used in your process. 2. Go to the Operations Page, Loop Menu, and set Heat Proportional Band [`h;Pb] and/or Cool Proportional Band [`C;Pb] to 5. Set Time Integral [``ti] to 0. Set Time Derivative [``td] to 0. 3.
When autotuning is complete, the PID parameters should provide good control. As long as the loop is in the adaptive control mode, TRU-TUNE+ ® continuously tunes to provide the best possible PID control for the process. ç WARNING! During autotuning, the controller sets the output to 100 percent and attempts to drive the process variable toward the set point. Enter a set point and heat and cool power limits that are within the safe operating limits of your system.
Filter Time Constant Scale High and Scale Low Filtering smoothes an input signal by applying a first-order filter time constant to the signal. Filtering the displayed value makes it easier to monitor. Filtering the signal may improve the performance of PID control in a noisy or very dynamic system. Adjust the filter time interval with Filter Time [`FiL] (Setup Page, Analog Input Menu). Example: With a filter value of 0.
No-arc Relay A no-arc relay provides a significant improvement in the life of the output relay over conventional relays. Conventional mechanical relays have an expected life of 100,000 cycles at the rated full-load current. The shorter life for conventional relays is due to the fact that when contacts open while current is flowing metal degradation occurs. This action produces unavoidable electrical arcing causing metal to transfer from one contact to the other.
providing a valid input signal. If a valid input signal is present, the controller will perform closed-loop control. Closed-loop control uses a process sensor to determine the difference between the process value and the set point. Then the controller applies power to a control output load to reduce that difference.
To transfer to auto mode from manual mode, press the Advance Key ‰ until [`C;M] appears in the lower display. The upper display will display [MAn] for manual mode. Use the Up ¿ or Down ¯ keys to select [AUto]. The automatic set point value will be recalled from the last automatic operation. Changes take effect after three seconds or immediately upon pressing either the Advance Key ‰ or the Infinity Key ˆ.
Proportional plus Integral plus Derivative (PID) Control Use derivative (rate) control to minimize the overshoot in a PI-controlled system. Derivative (rate) adjusts the output based on the rate of change in the temperature or process value. Too much derivative (rate) will make the system sluggish. Derivative action is active only when the process value is within twice the proportional value from the set point. Adjust the derivative with Time Derivative [``td] (Operations Page, Loop Menu).
Set Point Temperature a solid-state relay can inexpensively approach the effect of analog, phase-angle fired control. Select the AC Line Frequency [AC;LF] (Setup Page, Global Menu), 50 or 60 Hz.
View or change alarm set points with Low Set Point [`A;Lo] and High Set Point [`A;hi] (Operations Page, Alarm Menu). The alarm state begins when the temperature reaches the Alarm High Set Point Alarm High Set Point Alarm Hysteresis High Side Alarm Range Alarm High Set Point Temperature Alarm Hysteresis Normal Operating Range Alarm Hysteresis Alarm Low Set Point Low Side Alarm Range Time Alarm Latching A latched alarm will remain active after the alarm condition has passed.
Programming the EZ Key You can program the EZ Key either in the Setup Menu or with configuration software, such as EZZONE ® Configurator, using a personal computer. The following examples show how to program the EZ Key to start and stop a profile. Using keys and display: 1. To go to the Setup Page from the Home Page, press both the Up ¿ and Down ¯ keys for six seconds. [``Ai] will appear in the upper display and [`Set] will appear in the lower display. 2.
The following examples show how the Lockout Menu parameters may be used in applications: 1. You can lock out access to the Operations Page but allow an operator access to the Profile Menu, by changing the default Profile Page and Operations Page security levels. Change Lock Operations Page [LoC;o] to 3 and Lock Profiling Page [LoC;P] to 2.
Chapter 10: Appendix Troubleshooting Alarms, Errors and Control Issues Indication Description Possible Cause(s) Alarm won’t clear or reset Alarm will not clear or reset • Alarm latching is active with keypad or digital input • Alarm set to incorrect output Alarm won’t occur Alarm will not activate output • Alarm silencing is active • Alarm blocking is active • Alarm is set to incorrect output Corrective Action • Reset alarm when process is within range or disable latching • Set output to correct ala
Indication Description Possible Cause(s) Corrective Action [Li;h1] Limit High [Li;h2] Sensor input above high limit • Temperature is greater than limit set • Check cause of over temperature set point point • Limit outputs latch and require reset • Clear limit • Incorrect alarm set point • Establish correct limit set point [LP;o1] Loop Open Error Open Loop Detect is active • Setting of Open Loop Detect Time and the process value did incorrect not deviate by a user-select- • Setting of Open Loop Detect
Indication Process doesn’t control to set point Description Process is unstable or never reaches set point Possible Cause(s) • Controller not tuned correctly • Control mode is incorrectly set • Control set point is incorrect Temperature runway Process value continues to increase or decrease past set point.
Specifications Line Voltage/Power • • • • • 85 to 264VÅ (ac), 47 to 63 Hz 12 to 40VÎ (dc); 20 to 28VÅ (ac), 47 to 63 Hz 10VA maximum power consumption Data retention upon power failure via nonvolatile memory Compliant with Semi F47-0200, Figure R1-1 voltage sag requirements @ 24Å (ac) or higher Environment • -18 to 65°C (0 to 149°F) operating temperature • -40 to 85°C (-40 to 185°F) storage temperature • 0 to 90 percent RH, non-condensing Functional Operating Range Accuracy • Calibration accuracy and se
• 15 A, 85 to 264VÅ (ac), no VÎ (dc), resistive load, 2 million cycles at rated load, maximum off-state leakage current: 2 mA Process • Universal process/Retransmit, outputs range selectable, 0 to 10 VÎ (dc) into minimum 1,000 Ω load, 0 to 20 mA into maximum 800 Ω load Operator Interface • Dual 4-digit, 7-segment LED displays • Advance, infinity, up and down keys plus an EZ Key programmable function key • Typical display update rate 1Hz • Agency approved to IP66/NEMA 4X Dimensions Size Behind Panel (max.
Ordering Information for PID Controller Models P M __ __ __ __ __ Controller - __ A A A A _ _ EZ-ZONE® PM PID Models *Universal Sensor Input, configuration communications *TRU-TUNE+® Adaptive Tune, red-green 7-segment displays Package Size 3 6 1⁄32 DIN 1⁄16 DIN Primary Function C R S PID Controller Ramp and Soak Custom Firmware Power Supply, Digital Input/Output 1 2 3 4 100 to 240VÅ (ac) 100 to 240VÅ (ac) plus 2 digital i/o points 12 to 40VÎ (dc) and 20 to 28VÅ (ac) 12 to 40VÎ (dc) and 20 to
Index Screens [`A;bL] Alarm Blocking 34, 55 [AC;LF] AC Line Frequency 35, 54 [AC;SP] Active Set Point 25 [Ad;M] Address Modbus 36 [`Ad;s] Address Standard Bus 36 [A;dSP] Alarm Display 34 [`A;hi] Alarm High Set Point 25, 55 [`A;hy] Alarm Hysteresis 34, 55 [``Ai] Analog Input Menu 23, 28 [`ain] Process Value 23 [`A;LA] Alarm Latching 34, 55 [AL;E1] [AL;E2] [AL;E3] [AL;E4] Alarm Error 1 to 4 17, 18, 21 [`A;Lg] Alarm Logic 34 [AL;h1] [AL;h2] [AL;h3] [AL;h4] Alarm High 1 to 4 17, 18, 21 [AL;L1] [AL;L2] [AL;L3] [
[S;bLd] Software Build 43 [`SEC] Seconds 39 [`SEn] Sensor Type 28, 47, 49 [`S;hi] Scale High 28, 32, 49, 50 [`SiL] Silence 55 [`S;Lo] Scale Low 28, 32, 49, 50 [SLoC] Set Lockout Security 43, 56 [``Sn] Serial Number 43 [SoAh] Soak 40 [SP;hi] Set Point High Limit Open Loop 32 [SP;Lo] Set Point Low Limit Open Loop 32 [`sr;a] Alarm Source 34 [StEP] Step 38 [`S;ti] Step Time Remaining 26 [`StP] Active Step 25 [S;tyP] Active Step Type 25 [S;tyP] Step Type 38 [t;Agr] User Tune Aggressiveness 31, 46 [t;bnd] TRU-TUN
F Factory Page 41 Filter Time 29, 49 filter time constant 49 Function 30, 47 Function Instance 29, 32, 33 Function Key Menu 34, 56 Setup Page 27 G Global Menu 35 Setup Page 27 Guaranteed Soak Deviation 35 Guaranteed Soak Enable 35 H Heater Error 17, 18 Heat Algorithm 30, 52 Heat Hysteresis 24, 52 Heat Power 20, 23, 47 Heat Proportional Band 24, 47, 52 High Power Scale 29, 33 high range 49 high scale 49 High Set Point Alarm 25, 55 Loop 32, 49 Home Page 20, 46 Home Page display 20 Hours 39 Hysteresis 34, 55
Set Point High Limit Open Loop 32 set point low limit 49 Set Point Low Limit Open Loop 32 Sides Alarm 34 Silencing 34, 55 single set point ramping 54 Soak 40 Software Build 43 Software Revision 43 Source 34 specifications 61 Step 38 Step Time Remaining 26 Step Type 38 T Target Set Point 38 temperature units indicator lights 17 Time 40 Time Base 29, 33 Time Derivative 24, 47, 53 Time Integral 24, 47, 52 troubleshooting 58 TRU-TUNE+® Band 30, 47 TRU-TUNE+® Enable 30, 47 TRU-TUNE+® Gain 31, 47 tuning the PID
Declaration Declaration of Conformity Conformity Series EZ Zone PM Watlow Winona, Inc. 1241 Bundy Blvd.
How to Reach Us Corporate Headquarters Europe Watlow Electric Manufacturing Company 12001 Lackland Road St. Louis, MO 63146 Sales: 1-800-WATLOW2 Manufacturing Support: 1-800-4WATLOW Email: info@watlow.com Website: www.watlow.com From outside the USA and Canada: Tel: +1 (314) 878-4600 Fax: +1 (314) 878-6814 Watlow France SARL Immeuble Somag 16, Rue Ampère 95307 Cergy-Pontoise CEDEX France Tel: + 33 (0)1 30 73 24 25 Fax: + 33 (0)1 30 73 28 75 Email: info@watlow.fr Website: www.watlow.
