Operating instructions

Diagnosis / faults and alarms
10.2 Diagnosis
Drive converter cabinet units
Operating Instructions, 10/2008, A5E00288214A
421
LED Color State Description
Flashing, 2.5 Hz Communication between the Control Unit and the CBE20 is faulty.
Possible causes:
- The CBE20 was removed following power-up.
- The CBE20 is defective.
Orange Flashing, 2.5 Hz Firmware is being downloaded.
10.2.2 Diagnostics via parameters
All Objects: key diagnostic parameters (details in List Manual)
Name Parameters
Description
Fault code r0945
Displays the fault number. Index 0 is the most recent fault (last fault to have occurred).
Fault time received in milliseconds r0948
Displays the system runtime in ms at which the fault occurred.
Fault value r0949
Displays additional information about the fault. This information is required for detailed fault diagnosis.
Fault time removed in milliseconds r2109
Displays the system runtime in ms at which the fault was rectified.
Alarm time received in milliseconds r2123
Displays the system runtime in ms at which the alarm occurred.
Alarm value r2124
Displays additional information about the alarm. This information is required for detailed alarm diagnosis.
Alarm time removed in milliseconds r2125
Displays the system runtime in ms at which the alarm was rectified.
CU320: key diagnostic parameters (details in List Manual)
Name
Parameters
Description
Control Unit status display r0002
Status display for the Control Unit
Control Unit firmware version r0018
Displays the firmware version of the Control Unit. For the display parameters for the firmware version of the
other connected components, see the parameter description in the List Manual.
Digital inputs actual terminal value r0721
Displays the actual value at the digital input terminals on the CU. This parameter shows the actual value,
uninfluenced by simulation mode of the digital inputs.