ABB ACS380 Hardware Manual page 161

Wiring diagrams – Push-pull type encoder output
Diagram assumes normal pulse order in Forward
rotation: Pulse A leads.
For encoders with pulse B leading, change the diagram:
• Wire encoder A and B to BTAC terminals B and A, respectively.
• Wire encoder A and B (if present) to BTAC terminals B and A, respectively.
Differential connection
1
V
SCR 0V
1)
1. Encoder
2. BTAC module
3. Encoder power supply
1
1
2
2
0
0
CC
BTAC-02 pulse encoder interface module 161
A
B
2 3
V
in
V
out
GND
A
A
GND
B
B
GND
Z
Z
GND