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Toshiba Tosvert VF-AS1 Instruction Manual Page 44

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Prohibited
 Preventing radio noise
To prevent electrical interference such as radio noise, separately bundle wires to the main circuit's power terminals
(R/L1, S/L2, T/L3) and wires to the motor terminals (U/T1, V/T2, W/T3).
 Control and main power supply
The control power supply and the main circuit power supply for the VF-AS1 are the same. If a malfunction or trip
causes the main circuit to be shut off, control power will also be shut off.
If you want to keep the control circuit alive when the main circuit shuts off due to trouble or tripping, you use an
2
optional control power supply backup unit (CPS002Z).
 Wiring
• Because the space between the main circuit terminals is small use sleeved pressure terminals for the connections.
(stripped wires may be connected directly for 200V/18.5kW to 200V/45kW models and 400V/22kW to 400V/75kW
models). Connect the terminals so that adjacent terminals do not touch each other.
• For ground terminal G/E use wires of the size that is equivalent to or larger than those given in table below and
always ground the inverter.
Use as large and short a ground wire as possible and wire it as close as possible to the inverter.
Voltage class
200V
400V
Note1: The recommended cable size is that of the cable (e.g. 600V class, HIV cable) with continuous maximum
permissible temperature of 75°C. Ambient temperature is 40°C or less and the wiring distance is 30m or less.
• Do not attach devices with built-in capacitors (such as noise filters or surge absorber) to the output
(motor side) terminal.
This could cause a fire.
Applicable Motor
0.4~2.2 kW
3.7, 4.0 kW
5.5 kW
7.5 kW
11, 15 kW
18.5, 22 kW
30 kW
37, 45 kW
55 kW
75 kW
0.75~4.0 kW
5.5 kW
7.5 kW
11 kW
15~22 kW
30 kW
37, 45 kW
55 kW
75 kW
90 kW
110 kW
132 kW
160 kW
200 kW
220 kW
280 kW
355 kW
400 kW
500 kW
Caution
Grounding wire size
(AWG) [Note]
14
12
10
10
10
8
6
6
2
2
14
12
12
10
10
10
8
6
6
2
2
1/0
1/0
1/0
2/0
3/0
4/0
4/0
250MCM
B-2
E6581442
Grounding wire size
2
(mm
) [Note]
2.5
4
6
10
16
16
25
35
70
95
2.5
2.5
4
6
10
16
16
25
35
70
95
95
120
150
150
120×2
120×2
150×2
150×2

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