ABB ACSM1 - Motor Feedback Features; Motor Encoder Gear Function

Drive control and features
54
Motor feedback features
Motor encoder gear function
The drive provides motor encoder gear function for compensating of mechanical
gears between the motor shaft, the encoder and the load.
Motor encoder gear application example:
The motor encoder gear parameters 22.03 MOTOR GEAR MUL and 22.04 MOTOR
GEAR DIV are set as follows:
Note: If the motor gear ratio differs from 1, the motor model uses an estimated
speed instead of the speed feedback value.
See also section Examples of gear function usage on page 62.
M
3~
Speed control uses the motor
speed. If no encoder is
mounted on the motor shaft,
the motor encoder gear
function must be applied in
order to calculate the actual
motor speed on the basis of the
measured load speed.
ENCODERLOADGEARMOTOR
=
22.03 MOTOR GEAR MUL
22.04 MOTOR GEAR DIV
Actual speed
Encoder 1/2 speed