Standard Connection Diagram - Toshiba TOSVERT VF-AS3 Instruction Manual

Standard connection diagram

This diagram shows a standard wiring of the power circuit and control circuit.
[Standard connection diagram – source logic]
This diagram shows an example of a standard connection.
Power supply
Three-phase 380 - 480 V-50/60 Hz
MCCB or ELCB
*1 External braking resistor (option).
*2 To input DC power, connect the inverter between the terminals [PA/+] and [PC/-].
*3 When using models of VFAS3-4220PCE to VFAS3-4750PCE with a DC power supply, a circuit to suppress an inrush current is required. For detail,
refer to application manual "DC power supply connect to inverter" (E6582156).
*4 For the switch function, refer to [2. 3. 5] of E6582062.
*5 To supply control power from an external power supply for backing up the control power supplied from the inverter, an optional control power supply
unit (CPS002Z) is required. In this case, it is used in conjunction with the inverter internal power supply.
Set <F647: Control power option failure detection> to back up the control power supply. For details, refer to [6. 30. 20] of E6582062.
*6 The reset signal is activated by ON OFF trigger input.
*7 Connect to power to comply with OVC2 (Over Voltage Category 2). Isolation transformer is necessary when connecting to power supply (OVC3).
*1
PA/+ PB
DC reactor
R/L1
S/L2 Power
EMC
filter
circuit
T/L3
DC/DC
+SU
*5
CC
Control
5
*
circuit
FLA
FLB
PLC
*7 FLC
SW1
R1A/R2A
*4
R1C/R2C
FM AM CC RX
Frequency
Ammeter
meter
Ammeter or voltmeter External potentiometer
(Or, input voltage signal of 0 - 10 V between the terminals [RR] and [CC])
2-11
*2
+DC -DC
*3
PC/-
Motor
U/T1
V/T2
W/T3
F Fwd run
R Rev run
RES Reset 1
Preset speed switching 1
S1
Preset speed switching 2
S2
Preset speed switching 3
S3
Preset speed switching 4
S4
Preset speed switching 5
S5
Common
CC
P24
Pulse counter
SINK
FP
SOURCE
PLC
STOA
STOB
II RR PP
Voltage signal: -10 to +10 V
Current signal: 4(0) to 20 mA
E6582162c
M
Digital input
*6
Default
setting
2. Installation and wiring