ABB ACS880 - Tracking; Settings and Diagnostics

Setpoint
Time
Time
Time
Time
Actual value
Actual value
PID controller output
Sleep boost time (40.45)
Sleep boost step (40.46)
Wake-up delay
(40.48)
Non-inverted
Wake-up level
Wake-up level
Setpoint + 40.47
Setpoint - 40.47
(40.31 = Not inverted (Ref-Fbk))
40.31 = Inverted (Fbk-Ref)
Sleep level
40.43
t
sd
= Sleep delay (40.44)
t < t
sd
t
sd
Sleep mode
STOP
START
Tracking
In tracking mode, the PID block output is set directly to the value of parameter 40.50
(or 41.50). The internal I term of the PID controller is set so that no transient is allowed
to pass on to the output, so when the tracking mode is left, normal process control
operation can be resumed without a significant bump.
Settings and diagnostics
Parameter 96.4 Macro select (page 508) (macro selection).
Parameter groups 40 Process PID set 1 (page 375) and 41 Process PID set 2 (page 389).
74 Program features