Delta C2000 Series User Manual page 399

Chapter 12 Description of Parameter Settings C2000 Series
Enable PID to Change the Operation Direction
Settings
Wake-up delay time
Settings
Refer to Pr08-18 for more information.
PID Control Bit
Settings
Bit0, When Pr08-21 = 1, PID reverse running is enable..
Bit0 = 0, if the PID calculated value is positive, it will be forward running. If the PID calculated value
is negative, it will be reverse running.
There are three scenarios for sleep and wake-up frequency.
1) Frequency Command (PID is not in use, Pr08-=00. Only works in VF mode)
When the output frequency
then the VFD will be at the sleep mode.
When the frequency command reaches the wake-up frequency, the VFD will start to count the
wake-up delay time. Then when the VFD reaches the wake-up delay time, the VFD will begin
acceleration time to reach the frequency command.
Pr08-11
Wake up
eference Point
R
Pr08-10
Sleep
Reference Point
2) Frequency Command Calculation of the Internal PID
When the PID calculation reaches the sleep frequency, the VFD will start to count the sleep
time and the output frequency will start to decrease. If the VFD exceeds the preset sleep time, it will
directly go to sleep mode which is 0 Hz. But if the VFD doesn't reach the sleep time, it will remain at
the lower limit (if there is a preset of lower limit.). Or it will remain at the lowest output frequency set
at Pr01-07 and wait to reach the sleep time then go to sleep mode (0 Hz).
0: Disable change of direction
1: Enable change of direction
0.00~600.00 sec.
Bit0 =1, PID reverse running must follow the setting of Pr00-23
Bit0 = 0, PID reverse running follows PID's calculated value
the sleep frequency, and the VFD reaches the preset sleep time,
Pr08-12
Sleep Time
12-08-8
Factory Setting: 0
Factory Setting: 0.00
Factory Setting: 0
ActualOutputFrequency
0Hz
Pr08-22
Wake-up
Delay
Time
frequency command
actual output frequency