Chapter 12 Description of Parameter SettingsCP2000
12.1-08-11
3. PID Feedback Rate Percentage ( Use PID, Pr.08-00 ≠ 0 and Pr.08-18=1)
When the PID feedback rate reaches the sleep level percentage, the drive starts to count the
sleep time. The output frequency also decreases. If the drive exceeds the preset sleep time, it
goes to sleep mode (0 Hz). If the drive does not reach the sleep time, it remains at the lower limit
(if there is a preset of lower limit.), or it remains at the lowest output frequency set for Pr.01-07 and
waits to reach the sleep time before going into sleep mode (0 Hz).
When the PID feedback value reaches the wake-up percentage, the drive starts to count the
wake-up delay time. Once it reaches the wake-up delay time, the drive starts the acceleration time
to reach the PID frequency command value.
Example 01: PID negative feedback
Pr.08-10 must > Pr.08-11
30 kg is the reference
Set the parameter:
Pr.03-00=5 (AVI1 is PID feedback)
Pr.08-00=1 (PID
negative feedback: AVI1
simulation input function select)
Pr.08-10=40% (Sleep reference:
12 kg = 40%*30 kg)
Pr.08-11=20% (Wake-up reference:
6 kg = 20% * 30 kg)
Case 01: If feedback >12kg, frequency decrease.
Case 02: If feedback <6kg, frequency increase.
Area
PID
Physical quantity
Sleep area
>12 kg, the drive goes
into sleep, the motor
goes into sleep
Excessive
area
between 6 kg and 12
kg, the drive remains in
current state
Wake-up
area
< 6 kg, the drive
wakes-up, the motor
wakes-up
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