Chapter
3
- Functional Description
DCS 500 12-Pulse Planning and Start-Up
3 - 5
Error messages
For the 12-pulse mode, two additional error messages have been
introduced, F65 and F66. The error messages are listed in Group
111 FAULT_WORD3 11103. Both these errors occur only in the
MASTER.
Error 65:
Reversal Fault
This error is triggered if after the bridge reversal signal and after a
number of cycles set using Parameter 3603 has elapsed, both
power converter bridges do not have the same polarity.
Error 65 causes the drive to be switched off.
Error 66:
Current differential
This error is triggered if after a number of cycles set with 3606 the
currents in the two power converter units differ by an amount set
with Parameter 3605.
The current differential to be set in per cent using Parameter 3605
is referenced to the motor current involved.
[
]
I
I
I
I
Master
Slave
Master
Slave
−
≥
+
×
3605
100
Error 66 causes the drive to be switched off.
See Chapter 5, “Parameters and signals”