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MIW-SC2A4-EN-000 - 22 / 02 / 2021
5 - 8
OPERATIONAL DIAGRAM
Operational diagram 1
Operational diagram 2
Speed 1 - High (input CL closed)
Speed 2 - Low (input CL open)
Unregulated output
(L1)
Regulated output
(U)
Knob
position
0
1
2
3
4
5
400
330
290
250
210
U [VAC]
L1
(230 VAC)
Unregulated output
(L1)
Regulated output
(U)
Knob
position
0
1
2
3
4
5
290
250
210
170
130
U [VAC]
L1
(230 VAC)
WIRING AND CONNECTIONS
Pe
Earth terminals
R
Power supply 3*400 VAC / 50—60 Hz
S
T
N
Neutral
L1
Unregulated output, phase (230 VAC / 50—60 Hz / 2 A) (remains
powered in standby mode)
U
Regulated output to motor
V
W
N
Alarm output (230 VAC / 1 A)
AL
TK
Input - TK monitoring for thermal motor protection
TK
CC
Input - normally closed contact for remote ON /OFF
CC
OC
Input - normally open contact for remote ON /OFF
OC
CL
Normally closed contact for switching between high and low speed (e.g.
via an external clock)
CL
ATTENTION
Make sure you use cables with an appropriate diameter.
THREE PHASE 400 VAC TWO-SPEED TRANSFORMER
CONTROLLER WITH TK AND START / STOP
SC2A4