Fig. 3-18 Motor Terminal Box - Siemens MICROMASTER 420 Operating Instructions Manual

3 Functions
NEMA Motor
Volts
low
high
e.g.: Volts 230 V YY (low) / 460 V Y (high)
Volts
low
high
Fig. 3-18
The following must be noted when entering the rating plate data or the ESB data:
The rated motor voltage P0304, the rated motor current P0305 and the stator
resistance P0350 must always be entered in accordance with the motor circuit
configuration (either delta or star).
If the rated motor data that is available (P0304, P0305, P0350) does not match
the motor circuit configuration, then the appropriate conversion (refer to Fig.
3-19) must be made and then entered.
NOTE
The outer conductor voltage/phase-to-phase voltage (voltage U
conductors L1, L2) and the outer conductor current (phase current) I
specified on the rating plate.
66
IEC Motor
W2 U2 V2
U1 V1 W1
U1
W2
U2
V2
U1 V1
W1
V1
W1
e.g.: Volts 230 V (Delta connection) / 400 V (Star connection)
Connected
U V W
together
T -T T -T T -T T
1 7 2 8 3 9
T T T T -T
1 2 3 1 7
U V W
T -T -T T -T -T T -T
1 6 7 2 4 8 3 5
T T T
1 2 3
Motor terminal box
U1
Delta connection
V1
W1
Star connection
Connection
-T -T Y Y
4 5 6
T -T T -T
Y
2 8 3 9
Connected
Connection
together
-T -
9
T -T T -T T -T
4 7 5 8 6 9
MICROMASTER 420
Issue 07/04
T
1
T
4
T
7
T
T
T
8
9
6
T
5
T
T
3
T
1
T
T 4
9
T
T
7
6
T T
T T
3
8 5
between outer
12
are always
1
Operating Instructions
6SE6400-5AA00-0BP0
2
2