Table of Contents
Advertisement
VACON® 1000
Operating Guide
10.3.49 Fault Code 49 - Transformer Overtemperature Fault
Cause
The failure information is reported when the temperature of the transformer exceeds 110°C.
System default operation: Trip
Troubleshooting
•
Check if the ambient temperature is too high.
•
Check that the cooling fans on top of the transformer are working normally.
•
Check if the air filter is clogged.
•
Check if the drive is in overload operation for a long time.
•
Check if the temperature sensor is in good condition.
10.3.50 Fault Code 50 - Transformer Temperature Sensor Loss
Cause
The three PT100 thermal resistors in transformer windings A, B, and C are connected to the PT thermometric module in the PLC. If
the connection is loose, or one of the PT100 resistors in the transformer is damaged, the PLC detects the malfunction and reports
the fault.
System default operation: Alarm. System operation is configurable.
Troubleshooting
•
Check that the wiring is firmly connected.
•
Check if one of the PT100 resistors is damaged.
10.3.51 Fault Code 51 - Emergency Stop
Cause
The emergency stop push button on the control cabinet door is pressed.
System default operation: Trip
Troubleshooting
•
Release the emergency stop push button on control cabinet door.
10.3.52 Fault Code 52 - Remote Emergency Stop
Cause
The external emergency stop command is effective.
System default operation: No operation
Troubleshooting
•
Release the remote emergency stop push button.
10.3.53 Fault Code 53 - PLC–DSP Communication Failure
Cause
The PLC disconnects with the main control system.
System default operation: Alarm. System operation is configurable. The system continues to operate at the reference speed set be-
fore the disconnection.
Troubleshooting
•
Check the communication circuit.
10.3.54 Fault Code 54 - PLC–HMI Communication Failure
Cause
The PLC disconnects with the HMI.
System default operation: Alarm
Troubleshooting
•
Check the communication circuit.
10.3.55 Fault Code 55 - Upstream Main Circuit Breaker Abnormal Open
Cause
When running, the drive receives the open signal of the high-voltage circuit breaker.
Danfoss A/S © 2021.06
Fault Tracing
AQ363633621020en-000201 / 172F3117 | 103
Advertisement
Table of Contents
