Chapter 12 Descriptions of Parameter SettingsC2000 Plus
12.1-08-13
3) PID Feedback Value Rate Percentage (PID is in use, Pr.08-00 ≠ 0 and Pr.08-18 = 1)
When the PID feedback value reaches the sleep level percentage, the drive starts to count
the sleep time and the output frequency starts to decrease. If the drive exceeds the preset sleep
time, then the drive is in sleep mode (0 Hz). If the drive does not reach the preset sleep time, it
remains at the lower frequency limit (if there is a preset of lower limit.), or it remains at the
minimum output frequency set for Pr.01-07 and waits until it reaches 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 to catch up to reach
the PID Frequency command value by the acceleration time.
Example 01: PID negative feedback
Pr.08-10 must > Pr.08-11
30kg is the reference
Set the parameter:
Pr.03-00 = 5 (AVI is PID feedback)
Pr.08-00 = 1 (PID
negative feedback: AVI
simulation input function select)
Pr.08-10 = 40% (Sleep reference:
12kg = 40%*30kg)
Pr.08-11 = 20% (Wake-up reference:
6kg = 20%*30kg)
Case 01: If feedback >12kg, frequency decreases.
Case 02: If feedback <6kg, frequency increases.
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
To Next Page
Loading...