Chapter 6
Troubleshooting
6–22
Inverter Diagnostics Result #1 (parameter 258) and Inverter Diagnostics
Result #2 (parameter 259) contain the results of the transistor diagnostic
tests.
Important: Serious component failures may occur if unverified power
transistor fault conditions are ignored or tests are disabled
before you proceed to run the drive under load.
Inverter Diagnostics Result #1 (parameter 258) is defined as follows:
When this
bit is set (1):
Then:
0 A software fault occurred.
1 No motor is connected, or a bus fuse is open.
2 Phase U and W shorted.
3 Phase U and V shorted.
4 Phase V and W shorted.
5 There are shorted modules.
6 A ground fault occurred.
7 A fault occurred before the short module ran.
8 A hardware overvoltage fault occurred.
9 A hardware desat fault occurred.
10 A hardware ground fault occurred.
11 A hardware phase overcurrent fault occurred.
12 There are open power transistor(s).
13 There are current feedback faults.
Bits 14 and 15 are reserved.
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