1
Three-phase supply
2
Motor
3
Control voltage (soft starter)
4
Digital inputs
5
Motor thermistor input
6
Relay outputs
7
Analog output
8
Control voltage (external equipment)
9
Pilot lamps
10
Communications/Smart card expansion port
K1
Main contactor
K2
Bypass contactor (external)
F1
Fuses or circuit breaker
RESET,
COM+
(S1)
Reset
START,
COM+
(S2)
Start/stop
DI-A,
COM+
Programmable input A (default = Input trip (N/O))
DI-B,
COM+
Programmable input B (default = Input trip (N/O))
TER-05,
TER-06
Motor thermistor input
13, 14
Main contactor output
21, 22,
23
Relay output A (default = Run)
33, 34
Relay output B (default = Run)
03, 04
Bypass contactor output
AO-07,
AO-08
Analog output
5.11 Quick Set-up
The Quick Set-up makes it easy to configure the soft starter for common applications. The VLT® Soft Starter MCD 600 guides the user
through the most common installation parameters and suggests a typical setting for the application. Adjust each parameter to suit
the exact requirements.
All other parameters remain at default values. To change other parameter values or review default settings, use the Main Menu (see
Always set
parameter 1-2 Motor Full Load Current
to match the motor nameplate FLC.
Table 26: Suggested Settings for Common Applications
Application
Start mode
Start
ramp
time [s]
Initial
current
[%]
Cur-
rent
limit
[%]
Adaptive
start profile
Stop mode
Stop
time [s]
Adaptive
stop profile
Pump centrifu-
gal
Adaptive con-
trol
10
200
500
Early acceler-
ation
Adaptive
control
15
Late deceler-
ation
Pump bore
Adaptive con-
trol
3
200
500
Early acceler-
ation
Adaptive
control
3
Late deceler-
ation
Pump hydraulic
Constant cur-
rent
2
200
350
n/a
Coast to stop
n/a
n/a
Fan damped
Constant cur-
rent
2
200
350
n/a
Coast to stop
n/a
n/a
Fan undamped
Constant cur-
rent
2
200
450
n/a
Coast to stop
n/a
n/a
Compressor
screw
Constant cur-
rent
2
200
400
n/a
Coast to stop
n/a
n/a
AQ262141844215en-000401 / 175R1174
46 | Danfoss A/S © 2020.12
Installation
VLT® Soft Starter MCD 600
Operating Guide