B-6
2.3 Explanation of terminals
2.3.1 Main circuit terminals
Figure below shows an example of the wiring of the main circuit. Use optional devices, as required.
■
Connecting a power source and a motor
■
Connecting peripheral devices
■
Main circuit
Terminal symbol
Function
G/E
Grounding terminal for the inverter's enclosure.
R/L1
,
S/L2
,
T/L3
200V class:
0.4
〜
7.5 and 75, 90kW: 3-phase 200
〜
230V-50/60Hz
11
〜
55kW: 3-phase 200
〜
220V-50Hz,200
〜
230V-60Hz
400V class:
0.75
〜
22, 110
〜
280kW: 3-phase 380
〜
460V-50/60Hz
30
〜
75kW: 3-phase 380
〜
440V-50Hz,380
〜
460V-60Hz
U/T1
,
V/T2
,
W/T3
Used to connect a motor (3-phase inductive motor)
R0
,
S0
(R46, R41)
Used to connect a power source for the control circuit (Optional for the 22kW and
smaller models, though these terminals are provided for them)
200V class:
0.4
〜
7.5 and 75, 90kW: Single-phase 200
〜
230V-50/60Hz
11
〜
55kW: Single-phase 200
〜
220V-50Hz,200
〜
230V-60Hz
400V class:
0.75
〜
22, 110
〜
280kW: 3-phase 380
〜
460V-50/60Hz
30
〜
75kW: 3-phase 380
〜
440V-50Hz,380
〜
460V-60Hz
Between R46-S0: Single-phase 415
〜
440V-50Hz, 415
〜
460V-60Hz
Between R41-S0: Single-phase 380
〜
415V-50Hz, 380
〜
415V-60Hz
*Maximum allowable output of control power source:
200V class: 0.4
〜
30kW
…
50VA, 37
〜
90kW
…
60VA
400V class: 0.75
〜
30kW
…
50VA, 37
〜
75kW
…
150VA,
110 and 132kW
…
200VA, 160
〜
280kW
…
350VA
PA, PB
Used to connect a dynamic braking resistor (For the optional dynamic braking unit,
connect it between PA and PC.)the settings of the parameters
,
and/or
, as required, when connecting an external resistor.
Motor
Zero-phase
reactor
Power
source
Inverter
DC reactor
Surge suppressing filter
Dynamic braking resistor(See Note.)
Simplified radio noise filter
Radio noise
reduction filter
(high-attenuation)
Input
reactor
Magnetic
contactor
Non-fuse
breaker
R
/L1
S
/L2
T
/L3
PA
P0
PA
PB
V
/T2
U
/T3
W
/T1
Note) Connect a dynamic
braking unit between
the terminals PA and
PC, if necessary.
IM
Power source
R/L1 S/L2 T/L3
Motor
No-fuse
breaker
Connect the power
source to the terminals
R, S and T.
Connect the motor
cables to the terminals
U, V and W.
VF-A7
E
U/T1 V/T2 W/T3
G/E