To Next PageTo Next PageWhat causes Error Input Er.i1 on a Watlow ez-zone pm Controller?
The Error Input Er.i1 on a Watlow Controller can be caused by: * A sensor improperly wired or open. Correct the wiring or replace the sensor. * Incorrect sensor settings. Match the setting to the sensor used. * A corrupt calibration. Check the calibration of the controller.
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 does Limit High Li.h1 mean on Watlow ez-zone pm Controller?
If your Watlow Controller displays a 'Limit High Li.h1' error, it could be due to: * The temperature being greater than the limit set point; check the cause of the over temperature. * The limit outputs latching and requiring a reset; clear the limit. * An incorrect alarm set point; establish the correct limit set point.
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.
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.
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 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.
What to do if Watlow ez-zone pm Controller displays value too low uaL.L?
If the displayed value is too low on your Watlow Controller (uaL.L), check the scaling of the source data.
What to do for Alarm High AL.h1 AL.h2 AL.h3 AL.h4 on Watlow Controller?
In case of a high alarm (AL.h1 AL.h2 AL.h3 AL.h4) on your Watlow Controller, check the cause of the over temperature.
What to do for Alarm Low AL.L1 AL.L2 AL.L3 AL.L4 on Watlow ez-zone pm?
If you encounter a low alarm (AL.L1 AL.L2 AL.L3 AL.L4) on your Watlow Controller, check the cause of the under temperature.
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.
