Motor Feedback Features; Motor Encoder Gear Function - ABB ACSM1 Manual

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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:
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.
The motor encoder gear parameters
GEAR DIV
22.03 MOTOR GEAR MUL
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
Drive control and features
are set as follows:
22.04 MOTOR GEAR DIV
Examples of gear function usage
M
3~
MOTOR GEAR
22.03 MOTOR GEAR MUL
Actual speed
=
Encoder 1/2 speed
on page 62.
LOAD ENCODER
and 22.04 MOTOR