Chapter 4 Parameters｜VFD-EL-W
137
prevent frequent switching between the two frequency status.
The sleep frequency Pr.10.15 setting must be higher than the Pr.01.08 output frequency
lower limit to prevent being limited for sleep mode.
The sleep frequency Pr.10.15 setting must be higher than the Pr.01.05 minimum output
frequency.
Sleep/ wake-up mode status description for the AC motor drive:
When the actual output frequency H < Pr.10.15 and the time exceeds the Pr.10.14 setting,
the AC motor drive no longer outputs and is in sleep mode after the AC motor drive
decelerates to Pr.01.05 minimum output frequency following the deceleration time limit
(Pr.10.15).
When the AC motor drive is in sleep mode, the frequency command F is still calculated by
PID. The state of the wake-up shows as the following diagram.
1. Before the frequency command F calculated by the PID reaches the wake-up frequency
Pr.10.16, the AC motor drive is in sleep mode, and the output frequency H is 0 Hz. The
duration of this period of time is affected by the PID parameters (Pr.10.02, Pr.10.03, and
Pr.10.04).
2. When the frequency command F calculated by the PID reaches the wake-up frequency
Pr.10.16, the AC motor drive output frequency H accelerates from Pr.01.05 minimum
output frequency to Pr.10.16 wake-up frequency following the V/F curve.
3. When the actual output frequency H of the AC motor drive accelerates to Pr.10.16 wake-
up frequency, control the AC motor drive output frequency H by PID.
When the PID function is enabled and the sleep mode is disabled:
If Pr.01.08 > Pr.01.05, the lower limit of the drive output frequency H is limited by Pr.01.08.
If Pr.01.08 ≤ Pr.01.05, the lower limit of the drive output frequency H is limited by Pr.01.05.
When it reaches Pr.01.05, the drive stops output and is in ready status.
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