DCS 500 User Manual

Page 55

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Chapter 4 - Signals and Troubleshooting


DCS 500B / DCP 500B Operating Instructions

IV A

4 - 3

4.4 Fault Signals (F)

The fault signals will be shown on the seven segment display of the
control board SDCS-CON-x as codes F . . as well as on the LCD of
the control panel CDP 31x as clear text.

All fault signals - with the exception of

F 17

,

F 18

and

F 44

- can be

reset (after elimination of the faults);

F 20

would be

self resetting, if

the communication had been re-established before.

For resetting (RESET) of fault signals the following steps are re-
quired:

Switching off the commands ON/OFF and RUN

Elimination of the faults

Fault acknowledgement, i.e. resetting (RESET)

a) as described for CDP 31x

or

b) by short-time setting of the command RESET

to high (logical one) via a binary input

(default setting = DI6).

Depending on the application conditions generate the commands
ON/OFF and RUN once more.

The fault signals will result in switching off the signal

[10910]

resp. in

stopping the drive (installation-dependent).

If a fault occurs, there will be three different possibilities of reaction (see
column “Remark” in the fault list):

(1) Fault will switch off the signals

energizing the main contactor, the field

contactor and the fan contactor.

(2) Fault will switch off the signals

energizing the main contactor and the

field contactor.

(3) Fault will switch off at least the signal

energizing the main contactor.

Code

seven

segm.

display

Text on

LCD of control panel

CDP 31x

Definition /

Action

Status

signal

(FAULT_WORD_1/2)

Remark

F 1

Auxil. undervoltage

Auxiliary voltage fault

Try to reset. Check internal auxiliary volt-
ages;

if fault persists, change SDCS-CON-x

and/ or SDCS-POW 1 board (if required).

11101

bit 0

(1)

F 2

Overcurrent

Overcurrent

Check: - Motor, load and armature cabling

for faults or blocking condition;

- Parameter setting of current con-

trol circuit/torque limitation;

-

Parameter

[P 512]

(overcurrent

detection).

11101

bit 1

(3)

3ADW000055R0401_DCS500B_Operating Instruction_e_d

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