Schneider Electric ATV61 manual Encoder

2. Drive implementation

Wiring the VW3 A3 401 option card encoder input when replacing an ATV38

On the Altivar 38, encoder signals A A- or B B- had to be reversed in order to avoid the motor rotating in the wrong direction. This anomaly has been corrected on the Altivar 61 and, therefore, the wiring conforms to the signal order A A- B B-.

ATV38

A A- B B- 0 V 5 V A A- B B- 0 V 5 V

OR

A	A-	B	B-	0 V
	Encoder			5 V

ATV 61

VW3 A3 40p

A A- B B- 0 Vs + Vs

A A- B B-

Encoder

0 V

5 V

A A- B B-

Encoder

0 Vs + Vs

The encoder card’s connector does not have a terminal for connecting the cable shielding.

This shielding must, therefore, be connected to the power terminals; use a tag connector or an accessory: D23 FA3.

R/L1 S/L2 T/L3 PO PA/+ PB PC/- U/T1 V/T2 W/T3

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