Why is the PTC sensor resistance too high in my Bitzer CM-RC-01 Control Unit?
If the PTC sensor resistance is too high in your Bitzer Control Unit, it indicates that the temperature of the PTC sensor is above the threshold limit. As a result, the fault relay has been released to protect the motor or installation.
How to fix incorrect compressor configuration of Bitzer CM-RC-01 Control Unit?
If you suspect an incorrect compressor configuration in your Bitzer Control Unit, verify using BEST Software that CM-RC-01 is configured for the correct compressor and application.
What to do if Bitzer CM-RC-01 Control Unit has incorrect compressor start type configured?
If the compressor start type is configured incorrectly in your Bitzer Control Unit, verify that the correct compressor start type is configured: DOL, Part winding, Star-delta.
What happens if there is a short circuit on the PTC-sensor cables of Bitzer Control Unit?
A short circuit on the PTC-sensor cables in your Bitzer Control Unit means the measured resistance is close to zero. This indicates there is no overheat protection!
What happens when there is a broken connection to the PTC-sensor in Bitzer CM-RC-01?
If there is a broken connection to the PTC-sensor in your Bitzer Control Unit, the measured resistance is more than 1 MΩ. The relays will not be engaged.
What to do if Bitzer Control Unit power not energized after startup?
If the power is not energized after startup of your Bitzer Control Unit, turn off the power for 5 seconds and see if the relays are energized after power on.
What does 'Illegal data value' mean for Bitzer Control Unit?
An illegal data value error in your Bitzer Control Unit indicates that the value is not allowed.
What does 'Illegal data address' mean for Bitzer Control Unit?
An illegal data address error in your Bitzer Control Unit means that the specified register is not valid.
What does 'Illegal function' mean for Bitzer CM-RC-01?
An illegal function error in your Bitzer Control Unit indicates that the function code is not valid.
What does slave device failure mean for Bitzer CM-RC-01 Control Unit?
A slave device failure in your Bitzer Control Unit indicates an unrecoverable error in the slave device.
General| Brand | Bitzer |
|---|---|
| Model | CM-RC-01 |
| Category | Control Unit |
| Language | English |
Guidance on the correct handling and disposal of waste electrical and electronic equipment (WEEE).
Describes how the CM-RC-01 is configured for control functions to ensure safe operation.
Details the module's capabilities for monitoring compressor operation and diagnosing issues.
Explains the built-in data logger for storing operation data, sensors, alarms, and events.
Information on using the BEST Software for live monitoring, datalog download, and configuration.
Details how control commands and setpoints are managed via digital, analogue, and serial interfaces.
Instructions on how to enable or disable serial communication control for the module.
Defines the bit structure of the Control Word used for serial communication.
Defines the bit structure of the Status Word for monitoring operational state.
Describes the different severity levels for alarms: Fault, Critical, and Warning.
Details the various methods for resetting faults, including Restart, External, Timed, and Auto.
A comprehensive list of all alarms, their codes, text, severity, and reset types.
Explains the serial communication protocols and configuration for the CM-RC-01.
A detailed listing and description of all configurable parameters accessible via Modbus.
Provides information on the current state of alarms, including counts and severity levels.
Details the status information related to the compressor's operation, such as pressures and temperatures.
Covers application-specific configuration settings, including date and time.
Provides guidance on troubleshooting communication issues with the module.
Explains the meaning of the different status LEDs on the module for diagnostics.
Details the various LED flashing patterns and their corresponding operational states or errors.
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