ABB ACS380 Series, Hardware Manual

Page: 167 / 186

BTAC-02 pulse encoder interface module 167
Encoder configuration
This parameter group selects the settings for the encoder.
Diagnostics
With parameter 90.45 Motor feedback fault, you can select how the drive reacts when
it detects that the encoder signal is lost.
• 90.45 = 0 (Fault) – The drive generates a fault (7301 Motor speed feedback), and
the motor coasts to a stop.
• 90.45 = 1 (Warning) – The drive generates a warning (A7B0 Motor speed
feedback) and continues operation using estimated feedbacks.
If the drive generates this fault or warning:
No. Name/Value Description Def/FbEq16/32
92 Encoder 1 configuration
92.10 Pulses/rev Defines the TTL or HTL pulse number per revolution. 32
0…65535 1=1
Code
(hex)
Fault/Warning Cause
7301 Motor speed feedback No motor speed feedback is received.
4 Drift detected.
Check for slippage between encoder and motor.
3FC Incorrect motor feedback configuration
3FD Incorrect motor speed
A7B0 Motor speed feedback No motor speed feedback is received
4 Encoder drift detected.
Check for slippage between encoder and motor.
3FC Incorrect motor feedback configuration
3FD Incorrect motor speed