Delta Electronics AC Motor Drive VFD-E User Manual page 189

Chapter 4 Parameters|
When the AC motor drive is in sleep mode, frequency command is still calculated by PID.
When frequency reaches wake up frequency, AC motor drive will accelerate from Pr.01.05
minimum frequency following the V/f curve.
The wake up frequency must be higher than sleep frequency.
Frequency
10.16
10.15
01.05
Fcmd=0
Fout = 0
When output frequency
When min. output frequency ≦ PID frequency ≦ lower bound of frequency and sleep function
is enabled (output frequency
(in sleep mode). If sleep function is disabled, frequency command = lower bound frequency.
When PID frequency < min. output frequency and sleep function is enabled (output frequency
≤
sleep frequency and time > detection time), output frequency =0 (in sleep mode).
If output frequency
frequency. If sleep function is disabled, output frequency =0.
4-136
The limit of
decel. time
10.14
Fmin
Fmin<Fsleep<
≤
sleep frequency and time > detection time, it will go in sleep mode.
≤
sleep frequency and time > detection time), frequency will be 0
≤
sleep frequency but time < detection time, frequency command = lower
frequency calculated by PID
lower bound
of frequency
lower bound
of frequency
Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11
output
frequency
The limit of
accel. time
Time
Fsleep