34
35
6. Wiring
■
With Brake, Inverter Drive
Premium-efficiency, 3-phase motor
Premium-efficiency, 3-phase motor for inverter
ESB-250, ESB-250-2
8 Lead Wires
Q
uick Br
ak
ing C
ircuit 200V Class
Con
tr
ol P
anel
M
ot
or
Q
uick Br
ak
ing C
ircuit 400V Class
Con
tr
ol P
anel
M
ot
or
MC : Electromagnetic contactor
MCB : Breaker for wiring
Tr
: Transformer capacity 250 – 600VA, secondary voltage 200 – 220V
F
: Fuse 3 – 5A
Customer needs to prepare.
- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
Rectifiers are external to the main unit. Rectifiers are made for indoor use. Install in an area where they will not come into contact with
water, etc.
- Brake unit is for 200V class. For 400V class power sources, prepare a 400V/200V transformer.
- Always use the inverter’s power source side for the brake power source.
- Match the opening and closing of the brake circuit’s electromagnetic contactor to the timing of the inverter control.
R
S
T
Inverter
R
S
T
U
V
W
U1
V1 W1
V2 W2 U2
1 2 3 4 5 6
4 3
Rectifier
Brake
MCB
MC
Tr
F
400V
200V
Motor
R
S
T
Inverter
R
S
T
U
V
W
U1
V1 W1
V2 W2 U2
1 2 3 4 5 6
4 3
Rectifier
Brake
MCB
MC
Motor