To Next PageTo Next PageHow to fix Alarm Error AL.E1 AL.E2 AL.E3 AL.E4 on Watlow Controller?
If you're seeing an Alarm Error (AL.E1 AL.E2 AL.E3 AL.E4) on your Watlow Controller, correct the wiring or replace the sensor.
What to do for Limit Low Li.L1 on Watlow ez-zone pm Controller?
If you are facing a Limit Low (Li.L1) error on your Watlow Controller, check the cause of the under temperature.
What to do for Limit High Li.h1 on Watlow Controller?
If you are facing a Limit High (Li.h1) error on your Watlow Controller, check the cause of the over temperature.
How to fix a Watlow ez-zone pm when the process doesn’t control to set point?
If the process isn't controlling to the set point on your Watlow Controller, it could be due to a few reasons: * The controller might not be tuned correctly. Perform autotune or manually tune the system. * The control mode might be incorrectly set. Ensure it's set appropriately (Open vs Closed Loop). * The control set point might be incorrect. Set it correctly in the appropriate control mode and check the source of the set point: remote, idle, profile, closed loop, open loop.
How to resolve Loop Open Error Lp.o1 on a Watlow ez-zone pm?
To resolve Loop Open Error Lp.o1 on a Watlow Controller: * Set the correct Open Loop Detect Time for the application if the setting is incorrect. * Set the correct Open Loop Deviation value for the application if the setting is incorrect. * Determine the cause of the open thermal loop, such as misplaced sensors, load failure, or loss of power to the load. * Deactivate the Open Loop Detect feature.
What does Autotuning tUn1 mean on a Watlow ez-zone pm?
Autotuning tUn1 on a Watlow Controller signifies that the auto-tune function has been initiated. This can happen because: * The user started the auto-tune function: Wait until autotune completes or disable the auto-tune feature. * The digital input is set to start autotune: Set the digital input to a function other than autotune, if desired.
What to do if Watlow ez-zone pm displays value too high uaL.h?
If the displayed value is too high on your Watlow Controller (uaL.h), check the scaling of the source data.
How to access menus on Watlow ez-zone pm?
If menus are inaccessible on your Watlow Controller, examine the LoC settings within the Factory Page. Then, input the correct password into the ULoC setting, also found in the Factory Page.
What to do if the alarm won’t clear or reset on Watlow Controller?
If the alarm on your Watlow Controller won’t clear or reset, try resetting the alarm when the process is within the correct range. Alternatively, you can disable latching.
What does Limit Low Li.L1 mean on Watlow ez-zone pm Controller?
If your Watlow Controller displays a 'Limit Low Li.L1' error, it may indicate: * The temperature is less than the limit set point. Check the cause of the under temperature. * The limit outputs latch and require a reset. Clear the limit. * The alarm set point is incorrect. Establish the correct limit set point.
General| Model | EZ-ZONE PM |
|---|---|
| Input Types | Thermocouple, RTD, Process Voltage, Process Current |
| Output Types | Relay, SSR drive, voltage (0-10V), current (0-20mA, 4-20mA) |
| Display | LED |
| Power Supply | 100-240V AC |
| Communication Protocols | Modbus RTU, Ethernet/IP, DeviceNet |
| Agency Approvals | CE |
| Configuration | Front panel, PC software |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Alarms | 4 configurable alarms with relay or logic outputs |
Explains safety symbols, notes, cautions, and warnings for safe operation.
Describes the controller's purpose, advanced PID, configuration software, and key benefits.
Provides physical dimensions and recommended panel spacing for various models.
Step-by-step instructions for mounting and connecting the controller.
Details wiring for Modbus, DeviceNet, EtherNet/IP, J1939, Profibus, and EIA-485.
Instructions for connecting the controller to a PC for configuration and monitoring.
Covers password protection, read/write lockout levels, and enabling security features.
Explains PID parameter tuning, autotune, manual tuning, and TRU-TUNE+ adaptive control.
Provides guidance on identifying and resolving common alarms, errors, and control issues.
Lists electrical, environmental, accuracy, agency approvals, and controller specifications.
