Toshiba VF-AS1 instruction manual Preventing radio noise, Control and main power supply, Wiring

E6581301

Caution

Prohibited

•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.

■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.

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	Applicable Motor	Grounding wire size	Grounding wire size
		(AWG) [Note]	(mm2) [Note]
	0.4~2.2 kW	14	2.5
	3.7, 4.0 kW	12	4
	5.5 kW	10	6
	7.5 kW	10	10
200V	11, 15 kW	10	16
	18.5, 22 kW	8	16
	30 kW	6	25
	37, 45 kW	6	35
	55 kW	2	70
	75 kW	2	95
	0.75~4.0 kW	14	2.5
	5.5 kW	12	2.5
	7.5 kW	12	4
	11 kW	10	6
	15~22 kW	10	10
	30 kW	10	16
	37, 45 kW	8	16
	55 kW	6	25
	75 kW	6	35
400V	90 kW	2	70
	110 kW	2	95
	132 kW	1/0	95
	160 kW	1/0	120
	200 kW	1/0	150
	220 kW	2/0	150
	280 kW	3/0	120×2
	355 kW	4/0	120×2
	400 kW	4/0	150×2
	500 kW	250MCM	150×2

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 temperatur e is 40°C or less and the wiring distance is 30m or less.

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