Danfoss VACON 100 FLOW Series - 12 Fault Tracing; 12.1 Fault Types; 12.2 Alarms and Warnings; 12.3 Fault Codes

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12 Fault Tracing
12.1 Fault Types
When the control diagnostics of the AC drive find an unusual condition in the operation of the drive, the drive shows a notification
about it. The notification can be seen on the display of the control panel. The display shows the code, the name, and a short descrip-
tion of the fault or alarm.
The source info tells the source of the fault, what caused it, where it occurred, and other data.
There are 3 different types of notification.
An info does not affect the operation of the drive. The info must be reset.
An alarm informs of unusual operation on the drive. It does not stop the drive. The alarm must be reset.
A fault stops the drive. The drive must be reset and find a solution to the problem.
It is possible to program different responses for some faults in the application. See more in
6.9 Group 3.9: Protections.
Reset the fault with the [BACK/RESET] button on the keypad, or through the I/O terminal, fieldbus, or PC tool. The faults stay in the
Fault history where they can be examined. See the different fault codes in 12.3 Fault Codes.
Before contacting the distributor or the factory because of unusual operation, prepare some data. Write down all the texts on the
display, the fault code, the fault ID, the source info, the Active Faults list, and the Fault History.
12.2 Alarms and Warnings
In condition-based monitoring, for each feature, the user can define activation stages for warnings and alarms. The interpretation of
alarm and warning color codes are as follows:
Green: No alarms are indicated. Condition-based monitoring operations continue.
Yellow: First indication of warning-stage 1 alarm is visible. Stage 1 warning fault are also shown as Stage 1 Warning (S1). Notification
to users to plan for maintenance operations. In this stage, condition-based monitoring operations continue.
Orange: Clear indication of warning-stage 2 alarm is visible. Stage 2 warning fault are also shown as Stage 2 Warning (S2). Notifica-
tion to users to act as soon as possible before the fault becomes critical.
Red: A critical alarm has occurred and condition-based monitoring operations has stopped.
12.3 Fault Codes
12.3.1 Fault Code 1, ID 1 - Overcurrent (Hardware Fault)
Cause
There is too high a current (> 4 × I
H
) in the motor cable.
a sudden heavy load increase
a short circuit in the motor cables
the motor is not the correct type
the parameter settings are not properly made
Troubleshooting
Check the loading.
Check the motor.
Check the cables and connections.
Make an identification run.
Set the acceleration time longer (P3.4.1.2 and P3.4.2.2).
12.3.2 Fault Code 1, ID 2 - Overcurrent (Software Fault)
Cause
There is too high a current (> 4 × I
H
) in the motor cable.
a sudden heavy load increase
a short circuit in the motor cables
the motor is not the correct type
the parameter settings are not properly made
AB298035655957en-000201 / DPD01083 | 295Danfoss A/S © 2023.08
Fault Tracing
VACON® 100 FLOW
Application Guide