Program features 79
If 12.12 AI1 scaled value is 1500:
Par40.05 = (100/100) x {(1500 × 0.1) + [(1 – 0.1) × 1500]} × 1
Par40.05 = 1500
Pid trim auto connection
Parameter40.65 Trim auto connection activates the connection of PID trim output
actual (parameter 40.05 Process PID trim output act) to the respective speed, torque
and frequency reference chains. The respective reference chains can be selected
with parameter 40.52 Set 1 trim selection (for PID set 1) or 40.52 Set 1 trim selection
(for PID set 2).
Parameter 99.04 Motor control mode is also taken into consideration while passing
the PID trimmed output actual (40.05 Process PID trim output act) to the speed,
torque and frequency reference chains. In scalar control mode, the speed trim and
torque trim values are zero and in vector control mode, the frequency trim value is
zero.
Speed trim connection
Speed trim is added at 23.02 Speed ref ramp output and 24.11 Speed correction and
the final speed reference after the trim addition is available in parameter 24.01 Used
speed reference.
23.02 Speed ref ramp output
24.11 Speed correction
speed trim
24.01 Used speed reference
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ACS180 FW.book Page 79 Tuesday, March 9, 2021 2:25 PM
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