To Next PageTo Next PageWhat does [AL;L1] Alarm Low [AL;L2] [AL;L3] [AL;L4] mean on Watlow Electric EZ-ZONE PM Controller?
The [AL;L1] Alarm Low [AL;L2] [AL;L3] [AL;L4] on your Watlow Electric Controller means that the temperature is less than the alarm set point. Check the cause of the under temperature. You can also clear the latched alarm, establish the correct alarm set point, and set the alarm source to the proper setting.
Why is my Watlow Electric EZ-ZONE PM not displaying anything?
If your Watlow Electric Controller has no display, it could be due to several reasons: the power to the controller is off (turn on the power), the fuse is open (replace the fuse), the breaker tripped (reset the breaker), or the safety interlock switch is open (close the interlock switch). You can also try to reset the limit, correct any wiring issues, and apply the correct voltage, checking the part number.
What to do if Watlow Electric Controller process doesn’t control to set point?
If the process doesn't control to the set point on your Watlow Electric Controller, it might be because the controller isn't tuned correctly. Perform autotune or manually tune the system. Also, ensure the control mode is set appropriately (Open vs Closed Loop) and verify the control set point in the appropriate control mode, checking the source of the set point: remote, idle, profile, closed loop, or open loop.
How to fix a Watlow Electric Controller with temperature runaway?
To fix a temperature runaway issue with your Watlow Electric Controller, verify the output function is correct (heat or cool) and correct the sensor wiring (red wire negative) if the thermocouple is reverse wired. Also, verify and correct the wiring and consider replacing the heater, power controller, or the controller itself if necessary.
How to resolve a Watlow Electric EZ-ZONE PM no heat/cool action?
If your Watlow Electric Controller has no heat or cool action, the output function might be incorrectly set (set it correctly). Ensure the control mode is appropriately set (Open vs Closed Loop). Check and correct the output wiring, and verify the load, power, or fuse isn't open, correcting any faults in the system. Also, check that the control set point is correct in the appropriate control mode and check the source of the set point: remote, idle, profile, closed loop, open loop. Finally, ensure you have the correct controller model for your application.
What does [tUN1] Autotuning 1 [tUN2] Autotuning 2 mean on Watlow Electric Controller?
The [tUN1] Autotuning 1 [tUN2] Autotuning 2 message on your Watlow Electric Controller indicates that the user has started the autotune function. Wait until autotune completes or disable the autotune feature. If desired, set the digital input to a function other than autotune.
What does [LP;r1] [LP;r2] Loop Reversed Error mean on Watlow Electric EZ-ZONE PM Controller?
The [LP;r1] [LP;r2] Loop Reversed Error on your Watlow Electric Controller can be caused by an incorrect Open Loop Detect Time setting. Set the correct Open Loop Detect Time for your application and the correct Open Loop Deviation value. Also, ensure the output function is set correctly, and if a thermocouple sensor is used, ensure it is wired correctly with the red wire being negative.
What does [`rP1] Ramping 1 [`rP2] Ramping 2 mean on Watlow Electric Controller?
The [`rP1] Ramping 1 [`rP2] Ramping 2 message on your Watlow Electric Controller means that the ramping feature is activated. Disable the ramping feature if it is not required.
What does [Li;E1] Limit Error mean on Watlow Electric EZ-ZONE PM Controller?
The [Li;E1] Limit Error on your Watlow Electric Controller indicates that the sensor is improperly wired or open. Correct the wiring or replace the sensor. Additionally, match the setting to the sensor used and check the calibration of the controller.
What does [AL;E1] Alarm Error [AL;E2] [AL;E3] [AL;E4] mean on Watlow Electric Controller?
The [AL;E1] Alarm Error [AL;E2] [AL;E3] [AL;E4] on your Watlow Electric Controller means that the sensor is improperly wired or open. Correct the wiring or replace the sensor. You should also match the setting to the sensor used and check the calibration of the controller.
Details the core functionalities and advantages of the EZ-ZONE PM controller.
Outlines additional features that enhance the controller's capabilities for specific applications.
Explains the controller's architecture and functional components for better understanding.
Provides a brief guide to initial setup and basic operation of the controller.
Presents the physical dimensions and panel mounting requirements for different models.
Guides users through the process of physically mounting and installing the controller into a panel.
Details the terminal connections for inputs, outputs, power, and communications for various configurations.
Describes how to interpret and respond to attention codes and messages shown on the controller display.
Explains the function of each key and display element on the controller's interface.
Lists the default parameters displayed on the Home Page for monitoring and quick access.
Guides users on customizing the Home Page to display frequently used parameters.
Explains how to configure parameter pairs for display on the Home Page.
Details the steps to access and navigate through the various menus within the Operations Page.
Describes parameters related to configuring analog inputs, including sensor type and scaling.
Covers settings for alarm and limit conditions, including set points and hysteresis.
Details parameters for configuring alarm types, sources, set points, and behavior.
Covers the configuration of PID parameters, tuning methods, and control modes for each loop.
Guides users on accessing and navigating the Setup Page menus and parameters.
Covers detailed configuration of analog inputs, including sensor type, calibration, and scaling.
Explains the setup for digital inputs and outputs, including direction, function, and instance.
Details the configuration of limit set points, hysteresis, and status for safety and control.
Covers the configuration of PID parameters, tuning methods, and control modes for each loop.
Outlines settings for network protocols like Modbus, EtherNet/IP, DeviceNet, and Profibus.
Explains how to access and navigate the Profiling Page for configuring temperature profiles.
Covers foundational profile settings like Ramping Type and Guaranteed Soak Enable.
Details the various step types and parameters used to define temperature profiles.
Guides users on accessing and navigating the Factory Page for advanced configuration and diagnostics.
Allows customization of parameters displayed on the Home Page.
Covers security settings for locking access to specific pages or parameters.
Provides access to controller information such as part number, firmware revision, and serial number.
Details procedures for calibrating analog inputs and outputs for accurate measurements.
Explains how to tune PID parameters for optimal control performance using autotuning or manual methods.
Describes input configurations like calibration, sensor selection, and range settings.
Explains different control strategies like Auto, Manual, On-Off, P, PI, and PID control.
Covers the configuration of alarms, including types, set points, hysteresis, and behavior.
Details methods for securing controller settings using lockout levels and passwords.
Demonstrates a basic control loop configuration with one input and one output.
Explains how to configure sensor backup for redundancy using two analog inputs.
Illustrates how to configure differential control to maintain a difference between two analog inputs.
Describes cascade control for optimizing thermal systems with long lag times using two control loops.
Details the configuration for controlling motorized valves using special output functions.
Provides a guide to diagnosing and resolving common alarms, errors, and control problems.
Explains the use of Modbus registers for accessing and configuring parameters.
Lists the technical specifications, ratings, approvals, and dimensions of the controller.
Provides details on model numbers and configuration options for ordering.
General| Brand | Watlow Electric |
|---|---|
| Model | EZ-ZONE PM |
| Category | Controller |
| Language | English |
