ABB ACS380 Series, Hardware Manual

Page: 156 / 186

156 BTAC-02 pulse encoder interface module
Terminal designations
The encoder user interface of the BTAC module consists of four 1×3-pin terminal
blocks.
Use this table for reference when you wire the BTAC module and encoder terminals
.
Identification
Description
BTAC
Encoder
X103
VIN V
cc
/PWR External power supply input
VOUT V
cc
/PWR Power supply output for the encoder
GND 0 V / GND External power and encoder ground
X104
A 1 A A+ Encoder signal A + terminal
A 1 A A- Encoder signal A - terminal
GND - - - Encoder ground
X105
B 2 B B+ Encoder signal B + terminal
B 2 B B- Encoder signal B - terminal
GND - - - Encoder ground
X106
Z 3 Z Z+ Encoder signal Z + terminal
Z 3 Z Z- Encoder signal Z - terminal
GND - - - Encoder ground.
Channels
Description
BTAC
Encoder
A 1 A A+ • Maximum signal frequency: 200 kHz
A 1 A A- • Signal levels:
B 2 B B+ Encoder supply voltage Logic “1” Logic “0”
B 2 B B- 5 V >2.5 V <1.9 V
Z 3 Z Z+ 15 V >7.5 V <5.3 V
Z 3 Z Z- 24 V >12.1 V <8.3 V
• Decision levels are automatically defined based on the daisy chained
power supply voltage level.
• Input channels are isolated from the logic and ground.
• When the drive runs in the Forward direction, channel A should lead
channel B by 90° (electrical).
• Channel Z: One pulse per revolution (used in positioning applications
only).