Toshiba VF-PS1 Instruction Manual page 40

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-PS1 are the same. If a malfunction or trip
causes the main circuit to be shut off, control power will also be shut off.
2
If you want to keep the control circuit alive when the main circuit shuts off due to trouble or tripping, you use an 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. The ambient temperature is assumed to be 50°C or below for 200V-45kW or
less models and 400V-75kW or less models, or 45°C for 200V-55kW or more models and 400V-90kW or
more models. (The interconnect cable length is assumed to be 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
3.7kW
5.5 kW
7.5 kW
11, 15 kW
18.5, 22 kW
30 kW
37, 45 kW
55 kW
75 kW
90 kW
0.75~3.7kW
5.5 kW
7.5 kW
11 kW
15~18.5 kW
22 kW
30 kW
37, 45 kW
55 kW
75 kW
90 kW
110 kW
132 kW
160 kW
220~250 kW
280~315 kW
400 kW
500 kW
600 kW
Caution
Grounding wire size
(AWG) [Note]
14
12
10
10
10
8
6
6
1/0
1/0
1/0
14
12
12
10
10
10
10
8
6
6
2
2
1
1
2/0
3/0
4/0
250MCM
350MCM
B-2
E6581386
Grounding wire size
(mm 2 ) [Note]
2.5
4
6
10
16
16
25
35
70
95
120
2.5
2.5
4
6
10
8
16
16
25
35
70
95
95
120
150
120×2
150×2
150×2
185×2