Chapter 4 - Signals and Troubleshooting
IV A 4 - 4 DCS 500B / DCP 500B Operating Instructions
Code
seven
segm.
display
Text on
LCD of control panel
CDP 31x
Definition /
Action
Status
signal
(FAULT_WORD_1/2)
Remark
F 3
Conv.fan curr.fault
Current converter fan not within limits
The current of the converter´s cooling fan is
measured via the option board PW1002/3.
Check: - Fan supply, fan current;
- Setting of PW1002,
SET_MAX_BR_TEMP [P519] and
CONV_TEMP_DELAY [P527]
- Direction of rotation, fan compo
nents, air inlet
11103 bit 11 (1)
S21.232
and
higher
F 4
Converter overtemp.
Overtemperature power section
Check: - Fan supply, direction of rotation,
fan components, air inlet and
ambient temperature;
- Inadmissible load cycle?
11101 bit 3 (2)
F 5
Earth fault
Earth fault (Σ I differs from zero)
Disconnect the mains and verify zero voltage
in armature and field circuits.
Make insulation test for the complete
installation.
Check sum current transformer; if necessary,
change transformer and SDCS-IOB-3 board.
11101 bit 4 (1)
F 6
Motor 1 overtemp.
Overtemperature of MOTOR 1
Check: - Temperature sensor and its
cabling;
- Motor cooling or sizing;
- Inputs for temperature sensor
on board SDCS-IOB-3;
- Parameter setting
MOT1.TEMP_
FAULT_L [P 1403]
correct?
Note: It will only be possible to reset this fault signal when the
motor temperature has fallen below the threshold which is
valid for the ⇒ alarm signal A 103; the signal will also be
evaluated while the mains contactor is de-energized (open).
11101 bit 5 (2)
F 7
Motor 1 overload
Overload of MOTOR 1 (Thermal model 1)
Check: - Motor temperature (let motor cool
down and restart);
- Motor ratings and parameters of
thermal model;
- Motor sizing or load cycle.
11101 bit 6 (2)
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