Danfoss vlt soft starter mcd 500 - Emergency Run Operation

5.10 Emergency Run Operation
In normal operation, the VLT
®
Soft Starter MCD 500 is controlled via a remote 2-wire signal (terminals 17, 18).
A 2-wire circuit connected to input A (terminals 11, 16) controls emergency run. Closing input A causes the soft starter to
run the motor and ignore all trip conditions.
K1
F
24
VD
22
21
6/T3
2/T1
13
14
4/T2
24
33
34
06
05
08
07
17
18
25
11
16
A6
A5
A4
5/L3
3/L2
15
S3
S1
S2
E
1/L1
+
+
5
6 7
4
2
A
3
1
177HA524.1
1 Control voltage (model dependent) S1 Start/stop contact
2 24 V DC output S2 Reset contact
3 Remote control inputs S3 Emergency run contact
4 Motor thermistor input (PTC only) 13, 14 Relay output A
5 Relay outputs 21, 22, 24 Relay output B
6 3-phase supply 33, 34 Relay output C
7 Motor terminals
Illustration 5.12 Emergency Run Operation
Parameter settings:
•
Parameter 3-3 Input A Function.
- Select Emergency Run - assigns input A to emergency run function.
•
Parameter 15-3 Emergency Run.
- Select Enable - Enables the emergency run-mode.
Product Features Operating Guide
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