Delta VFD300C43S-HS User Manual page 416

Chapter 12 Description of Parameter SettingsC2000-HS
There are three scenarios for sleep and wake-up frequency.
1) Frequency Command (PID is not in use, Pr. 08-00 = 0, only works in VF mode)
When the output frequency ≤ the sleep frequency, and the drive reaches the preset sleep
time, then the drive is in sleep mode.
When the frequency command reaches the wake-up frequency, the drive starts to count the
wake-up delay time. When the drive reaches the wake-up delay time, the drive begins
acceleration time to reach the frequency command value.
2) Frequency Command Calculation of the Internal PID (Use PID, Pr. 08-00≠0 and Pr. 08-18=0)
When the PID calculation 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, it
goes directly to sleep mode (0Hz). 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 at Pr.
01-07 and waits to reach the sleep time before it goes into sleep mode (0Hz).
When the 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 the
acceleration time to reach the PID frequency command value.
12.1-08-10