ABB ACS320 - Page 238

238 Actual signals and parameters
4023
PID SLEEP LEVEL
0.0 … 120.0 Hz 0.1 Hz 0.0 Hz
Sets the motor speed / frequency that enables the PID sleep function – a motor speed
/ frequency below this level, for at least the time period 4024 PID SLEEP DELAY
enables the PID sleep function (stopping the drive).
• Requires 4022 = 7 INTERNAL.
• See figure: A = PID output level; B = PID process feedback.
4024
PID SLEEP DELAY
0.0 … 3600.0 s 0.1 s 60.0 s
Defines the delay for the sleep start function. See parameter 4023 PID SLEEP LEVEL.
When the motor speed falls below the sleep level, the counter starts. When the motor
speed exceeds the sleep level, the counter is reset.
• See 4023 PID SLEEP LEVEL above.
Group 40: Process PID set 1
Code Description Range Resolution Default S
Wake-up level
deviation (4025)
t < t
sd
Output
frequency
Selected process actual
value
Stop
t
sd
= Sleep delay
(4024)
Sleep level
(4023)
Start
Wake-up delay
(4026)
t
sd
Reference
t
Sleep boost step
(4031)
Control
panel:
PID SLEEP
Sleep boost time (4030)
t
t