ABB 500 - Page 59

Chapter 4 - Signals and Troubleshooting
DCS 500B / DCP 500B Operating Instructions
IV A 4 - 7
Code
seven
segm.
display
Text on
LCD of control panel
CDP 31x
Definition /
Action
Status
signal
(FAULT_WORD_1/2)
Remark
F 28
Armature over-
voltage
Armature (DC circuit) overvoltage
Check: - Setting of param. [
P 511] suitable
for the system configuration?
- Setting of field current and actual
value as well as the complete
field supply (FIELD EXCITER);
- Was the motor accelerated by
the load?
- Speed scaling;
- Armature voltage feedback;
- Connections between SDCS-
CON-x and SDCS-PIN boards;
- Coding of voltage evaluation on
SDCS-PIN-xx board.
11101 bit 2 (1)
F 29
Mains undervoltage
Mains supply undervoltage (AC); setting via
parameter
[P 509]
Check: - Does the supply voltage exist?
- Did the mains contactor close?
- Setting of voltage feedback
coding (voltage scaling) correct?
- Connections between SDCS-
CON-x and SDCS-PIN-xx boards;
- Coding of voltage evaluation on
SDCS-PIN-xx board.
11101 bit 11 (3)
F 30
Mains overvoltage
Mains supply overvoltage (AC)
Mains voltage > 130% of nominal value for
longer than 10s.
Fault tracing see Fault Code
F 29.
11101 bit 12 (1)
F 31
Not in synchronism
Synchronization fault (of mains)
Check: - Mains supply, fuses etc.;
- Mains voltage and stability.
11101 bit 13 (3)
F 32
Field ex.1 overcurr
FIELD EXCITER 1 (field supply 1) overcurrent
Check: - Parameters of
FIELD EXCITER 1;
- Connections of field exciter as
well as insulation level of cable
and of field winding.
11101 bit 14 (1)
F 33
Field ex.1 comerror
FIELD EXCITER 1 communication error
Check: - Flat cable connections X14: or
cable X16: between SDCS-
CON-x board and field exciter;
- Auxil. voltage for ext. field exciter.
11101 bit 15 (1)