B-7
Terminal symbol
Function
PC
A negative potential terminal of the internal dc main circuit. This terminal can be used to
connect a dc common power source in conjunction with the terminal PA (positive
potential).
PO, PA
Used to connect a DC reactor (DCL: external option). The inverter is shipped with these
terminals shorted. So, remove the shorting bar when connecting a DCL.
R20, S20
Used to connect the control output cables. Provided only for the 400V class 45kW and
larger models. (10VA)
400V 45
〜
90kW:
Single-phase 207.5
〜
220V 50Hz, 207.5
〜
230V-60Hz
110
〜
315kW:
Single-phase 207.5
〜
230V-50/60Hz
Terminal symbol
Inverter internal circuit
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
G/E
R0, S0
(R46, R41, R20,
S20)
Fig.1: 200V class 18.5
〜
22kW
400V class 18.5
〜
22kW
Fig.2: 200V class 30
〜
110kW
400V class 30,37kW
Fig.3: 400V class 45
〜
315kW
P0, PA, PB, PC,
(*1) 18.5 and 22kW models contain rush-current prevention circuit in the
rectifier-circuit part.
(*2) The dynamic-braking circuit of 30kW model or larger are served as option
correspondence.
R/L1
S/L2
T/L3
R46
R41
S0
R20
S20
U/T1
V/T2
W/T3
R/L1
S.L2
T/L3
G/E
noise
by
-p
ass
cir
cuit
Fig.3
R/L1
S/L2
T/L3
R0
S0
Ｒ/Ｌ１
Ｓ/Ｌ２
Ｔ/Ｌ３
Ｒ０
Ｓ０
CON
T
RO
L
C
IRCU
IT
Fig.1
Fig.2
CN21
CON
T
RO
L
C
IRCU
IT
CON
T
RO
L
C
IRCU
IT
PB
PA
PO
PC
Dynamic braking resistor
(*1)
(*2)
