Chapter 12 Description of Parameter Settings
MH300
2) Frequency Command Calculation of the Internal PID (Use PID, Pr.08-00 ≠ 0 and Pr.08-18 = 0)
When the PID calculation Frequency command reaches the sleep frequency, 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 (0Hz). If the drive does not reach the preset
sleep time, it remains at the lower frequency limit (if there is a preset lower limit.), or it remains at
the minimum output frequency set at Pr.01-07 and waits until it reaches the sleep time before it
going into sleep mode (0Hz). When the PID calculated Frequency command reaches the wake-
up frequency, 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.
3) PID Feedback Rate Percentage (Use PID, 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).
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