ABB ACSM1 Firmware Manual page 203

97.18 SIGNAL INJECTION
Enables signal injection. A high frequency alternating signal is injected to the motor at the low speed
region to improve the stability of torque control. Signal injection can be enabled with different
amplitude levels.
Note: Use as low a level as possible that gives satisfactory performance. Signal injection cannot be
applied to asynchronous motors.
(0) Disabled
(1) Enabled5%
(2) Enabled10%
(3) Enabled15%
(4) Enabled20%
97.20 POS OFFSET USER
Defines an angle offset between the zero position of the synchronous motor and the zero position of
the position sensor.
Notes:
• The value is in electrical degrees. The electrical angle equals the mechanical angle multiplied by
the number of motor pole pairs.
• This parameter is valid only for permanent magnet motors.
0...360°
FW block: None
Signal injection is disabled.
Signal injection is enabled with an amplitude level of 5%.
Signal injection is enabled with an amplitude level of 10%.
Signal injection is enabled with an amplitude level of 15%.
Signal injection is enabled with an amplitude level of 20%.
FW block: None
Angle offset.
Parameters and firmware blocks
203