DCS 500 manual Conv.fan curr.fault, Earth fault, Motor 1 overtemp

Chapter 4 - Signals and Troubleshooting

Code	Text on	Definition /	Status	Remark
seven	LCD of control panel	Action	signal
segm.	CDP 31x		(FAULT_WORD_1/2)
display
F 3	Conv.fan curr.fault	Current converter fan not within limits	11103 bit 11	(1)

The current of the converter´s cooling fan is
measured via the option board PW1002/3.	S21.232
Check: - Fan supply, fan current;
- Setting of PW1002,	and
	higher
SET_MAX_BR_TEMP [P519] and
CONV_TEMP_DELAY [P527]

-Direction of rotation, fan compo nents, air inlet

F 4 Converter overtemp. Overtemperature power section 11101 bit 3 (2)

Check: - Fan supply, direction of rotation, fan components, air inlet and ambient temperature;

- Inadmissible load cycle?

F 5 Earth fault Earth fault (Σ I differs from zero) 11101 bit 4 (1)

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.

F 6 Motor 1 overtemp. Overtemperature of MOTOR 1 11101 bit 5 (2)

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).

F 7 Motor 1 overload	Overload of MOTOR 1 (Thermal model 1)	11101 bit 6	(2)
	Check: - Motor temperature (let motor cool
	down and restart);

-Motor ratings and parameters of thermal model;

-Motor sizing or load cycle.

IV A 4 - 4 DCS 500B / DCP 500B Operating Instructions

3ADW000055R0401_DCS500B_Operating Instruction_e_d