Schneider Electric ATV61 manual Power cables, Disconnecting the RFI filter if using an IT system

2. Drive implementation

2. 7. Power cables

The layout and type of power terminals have changed:

Ring terminals must be used rather than ferrules for the ground terminals, although for the power terminals the ferrules used previously can be retained if they are in good condition (a flattened ferrule will not make a good connection).

Table of correspondence for power terminals

	ATV38	ATV 61
Power supply	L1	R/L1
	L2	S/L2
	L3	T/L3
DC bus	+	PO
	-	PC/-
Braking resistor	PA	PA/+
	PB	PB
Motor output	U	U/T1
	V	V/T2
	W	W/T3
Connecting to the Altivar 38		Connecting to the Altivar 61

A1

L1	L2	L3	R1A	R1C	R1B	R2A	R2C
U		W	PA		PB	ATV58pppppp
	V
U1	V1	W1
	M		Braking resistor
	3 a
			(if used)

A1

R / L1	S / L2	T / L3	R1A		R1C		R1B	R2A	R2C	PWR +24
T1	T2	T3		/ +				/ -		ATV71HpppM3
U /	V /	W /	P0	PA		PB		PC
U1		W1
	V1
	M
			Braking resistor
	3 a
				(if used)

Disconnecting the RFI filter if using an IT system

IT system: Isolated or impedance grounded neutral.

Use a permanent insulation monitor compatible with non-linear loads, such as a Merlin Gerin type XM200 or equivalent.

Altivar 61 drives feature built-in RFI filters. These filters can be isolated from ground for operation on an IT system as follows:

Remove the jumper located to the left of the power terminals

Layout of the ATV38 power terminals

Normal

(filter connected)

IT system

(filter disconnected)

t	L1	L2	L3			U	V W	t
t	L1	L2	L3	+	-		U	V W t
t				+	+	-	t
	L1	L2	L3	U	V	W
L1	L2	L3	t	t
+		-			U	V	W
L1	L2	L3	t	t
-			+	+	U	V	W

Do not use

ATV-38HD18N4 to D23N4

ATV-38HD25N4(X) to D79N4(X)

ATV-38HC10N4(X)

ATV-38H13N4(X) to C15N4(X)

ATV-38HC23N4(X) to C33N4(X)

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