The soft starter is now ready to control the motor.
5.4 Inputs
C A U T I O N
The control inputs are powered by the soft starter. Do not apply external voltage to the control input terminals.
N O T I C E
Cables to the control inputs must be segregated from mains voltage and motor cabling.
5.4.1 Input Terminals
READY
RUN
TRIP
LOCAL
Exit
Reset
Menu
Store
VLT
®
Soft Starter
2/T1
4/T2
6/T3
1/L1
3/L2
5/L3
A
O
-0
8
A
O
-0
7
D
I-
B
D
I-
A
C
O
M
+
S
T
A
R
T
C
O
M
+
R
E
S
E
T
T
E
R
-0
6
T
E
R
-0
5
e
7
7
h
a
7
1
8
.1
0
Illustration 7: Input Terminals
TER-05,
TER-06
Motor thermistor input
RESET,
COM+
Reset input
START,
COM+
Start/stop input
DI-A,
COM+
Programmable input A (default = Input trip (N/O))
DI-B,
COM+
Programmable input B (default = Input trip (N/O))
USB port (for flash, no direct PC connection)
5.4.2 Motor Thermistor
Motor thermistors can be connected directly to the VLT® Soft Starter MCD 600. The soft starter trips when the resistance of the
thermistor circuit exceeds approximately 3.6 kΩ or drops below 20 Ω.
The thermistors must be wired in series. The thermistor circuit should be run in shielded cable and must be electrically isolated from
ground and all other power and control circuits.
AQ262141844215en-000401 / 175R1174
32 | Danfoss A/S © 2020.12
Installation
VLT® Soft Starter MCD 600
Operating Guide