ABB ACS320 series, User Manual

Page: 238 / 442

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