28
6. Wiring
29
■
With Brake, 3-Phase Power Source, Operates Rotating in One Direction
Premium-efficiency, 3-phase motor
ESB-250, ESB-250-2
8 Lead Wires
Direct On-Line Starting
‒Δ
Starting
Q
uick Br
ak
ing C
ircuit 200V Class
wiring
at start
MC
M
ON
MC
Δ
OFF
MC ON
Δ wiring when
acceleration is
completed.
MC
M
ON
MC
Δ
OFF
MC OFF
Q
uick Br
ak
ing C
ircuit 400V Class
wiring
at start
MC
M
ON
MC
Δ
OFF
MC ON
Δ wiring when
acceleration is
completed.
MC
M
ON
MC
Δ
OFF
MC OFF
MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
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.
- In the case of quick braking circuits, interlock brake circuit’s electromagnetic contractor with the motor’s electromagnetic contractor.
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.
U1
V1 W1
V2 W2 U2
R
S
T
1 2 3 4 5 6
4 3
整流器
ブレーキ
MC
MC
OLR
Tr
F
400V級
200V級
モータ
Tr
F
400V級
200V級
MC
M
MC
Δ
MC
R
OLR
U1
S
V1
T
W1 V2 W2 U2
1 2 3 4 5 6
4 3
モータ
整流器
ブレーキ
MC
U1
V1 W1
V2 W2 U2
R
S
T
1 2 3 4 5 6
4 3
整流器
ブレーキ
MC
MC
OLR
モータ
MC
M
MC
Δ
MC
R
OLR
U1
S
V1
T
W1 V2 W2 U2
1 2 3 4 5 6
4 3
モータ
整流器
ブレーキ
MC
Co
nt
ro
l P
an
el
M
ot
or
Co
nt
ro
l P
an
el
M
ot
or
Co
nt
ro
l P
an
el
M
ot
or
Co
nt
ro
l P
an
el
M
ot
or
U1
V1 W1
V2 W2 U2
R
S
T
1 2 3 4 5 6
4 3
Rectifier
Brake
MC
MC
OLR
Tr
F
400V
200V
Motor
Tr
F
400V
200V
MC
M
MC
Δ
MC
R
OLR
U1
S
V1
T
W1 V2 W2 U2
1 2 3 4 5 6
4 3
Motor
Rectifier
Brake
MC
U1
V1 W1
V2 W2 U2
R
S
T
1 2 3 4 5 6
4 3
Rectifier
Brake
MC
MC
OLR
Motor
MC
M
MC
Δ
MC
R
OLR
U1
S
V1
T
W1 V2 W2 U2
1 2 3 4 5 6
4 3
Motor
Rectifier
Brake
MC