Power Terminals; Functions Of Power Terminals; Recommended Tightening Torque Of Power Terminal Screws - Toshiba TOSVERT VF-AS3 Instruction Manual

2. 3. 3
The power terminals are connected to the power supply (primary side) and the motor (secondary side).

■ Functions of power terminals

Terminal
symbol
2
[PE]
[R/L1]
[S/L2]
[T/L3]
[U/T1]
[V/T2]
[W/T3]
[PA/+]
[PB]
[BU+]
9
[BU-]
[PA/+]
[PC/-]
[PA/+]
[P0]
Memo

■ Recommended tightening torque of power terminal screws

Power terminal torque and wire strip length
Screw size
M4
M5
2. Installation and wiring

Power terminals

Grounding terminal for inverter case. There are 3 terminals in cooling fin
or mounting part of EMC plate.
Grounding terminal.
Connected to an AC power supply.
240 V class: Three-phase 200 - 240 V-50/60 Hz
480 V class: VFAS3-4004PC to 4132KPC：
Three-phase 380 - 480 V-50/60 Hz
VFAS3-4160KPC to 4280KPC：
Three-phase 380 - 440 V- 50 Hz
Three-phase 380 - 480 V- 60 Hz
Connected to a three-phase motor.
Connected to a braking resistor.
Change the parameters <F304: Dynamic braking, OLr trip>, <F308: Brak-
ing resistance>, and <F309: Braking resistor capacity> if necessary.
Inside the inverter. Connected to a braking unit (optional). Braking resistor
(optional) is connected to a braking unit terminals [PA] and [PB].
A DC power can be input.
For models of VFAS3-2110P to 2550P and VFAS3-4220PC to 4280KPC,
a rush current suppression circuit (optional) is required.
Connected to a braking unit (Optional) for frame size A6.
Be sure to connect the attached DC reactor.
• The arrangement of the terminals varies depending on the type. See the figures on the next
page and after.
Frame size
(N・m)
A1
A2
A3
Function
Torque
(lb・in)
1.3 11.5
1.5 13.3
2.6 23
2-36
E6582062
Applicable
frame size
All frame sizes
Frame size A4, A5,
and A6
All frame sizes
All frame sizes
Frame size A1, A2,
A3, A4, A5, and A7
Frame size A8
All frame sizes
Frame sizes A7
and A8
Strip length
(mm)
10
10
18