Toshiba TOSVERT VF-A7 Instruction Manual page 39

Terminal symbol
A negative potential terminal of the internal dc main circuit. This terminal can be used to
PC
connect a dc common power source in conjunction with the terminal PA (positive
potential).
Used to connect a DC reactor (DCL: external option). The inverter is shipped with these
PO, PA
terminals shorted.
Used to connect the control output cables. Provided only for the 400V class 37kW and
larger models. (10VA)
R20, S20
Already connected to the internal dynamic braking resistor. If there is no need to use the
resistor, change its connection from (PB1) to (PR1) and change the settings of the
(PR1), (PB1)
dynamic braking parameters ,. Provided only for the 3.7kW and smaller
models.
Used exclusively for the internal resistor. Do not remove nor connect any external device.
(PA1)
Provided only for the 3.7kW and smaller models.
Terminal symbol
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
G/E
Circuit of A
200V class 0.4 7.5kW, 400V class 0.75 15kW noise filter circuit
200V class 11 90kW, 400V class 18.5 280kW noise by-pass circuit
R0, S0
(R46, R41, R20,
S20)
Fig.1: 200V class 0.4
Fig.2: 200V class 30
Fig.3: 400V class 37
P0, PA, PB, PC,
(PA1),(PB1),(PR1)
Fig.1: 200V class 0.4
Fig.2: 200V class 5.5
(*1) Rush-current prevention circuit is in plus line or minus line.
(*2) The dynamic-braking circuit of 30kW model or larger are served as option
So, remove the shorting bar when connecting a DCL.
400V 37 75kW: Single-phase 207.5
110 280kW: Single-phase 207.5
Inverter internal circuit
R/L1
S.L2
A
T/L3
G/E
CN21
Fig.1
22kW
400V class 0.7 22kW
90kW
400V class 30kW
220kW
Internal braking resistor
Fig.1
3.7kW, 400V class 0.75
90kW, 400V class 5.5
18.5 and 22kW models contain it in the rectifier-circuit part.
correspondence.
B-7
Function
220V 50Hz, 207.5
230V-50/60Hz
R/L1
S/L2
T/L3
R0
S0
Fig.2
3.7kW
280kW
230V-60Hz
U/T1
V/T2
W/T3
R/L1
S/L2
T/L3
R46
R41
S0
R20
S20
Fig.3
Braking resistor
(*1)
(*2)
Fig.2