TECHTOP TD20 Series - Page 36

TD20 Series VFD Function Parameters
-34-
Function
code
Name
Detailed instruction of parameters
Default
value
Modify
lower limit one
(valid if the
lower limit
frequency is
above 0)
0: Run at the lower-limit frequency
1: Stop
2: Hibernation
The VFD will coast to stop when the set frequency is
lower than the lower-limit one.if the set frequency is
above the lower limit one again and it lasts for the time
set by P01.20, the VFD will come back to the running
state automatically.
P01.20
Hibernation
restore delay
time
This function code determines the hibernation delay
time. When the running frequency of the VFD is lower
than the lower limit one, the VFD will stop to stand by.
When the set frequency is above the lower limit one
again and it lasts for the time set by P01.20, the VFD will
run automatically.
Running
Dormancy
t1 t2
Running
Time
Set frequency
t1<t3, so the VFD does not work
t1+t2=t3, so the VFD works
t3=P01.20
t3
Setting range: 0.0–3600.0s (valid when P01.19=2)
0.0s
○
P01.21
Restart after
power off
This function can enable the VFD start or not after the
power off and then power on.
0: Disabled
1: Enabled, if the starting need is met, the VFD will run
automatically after waiting for the time defined by
P01.22.
0
○
P01.22
The waiting
time of restart
after power off
The function determines the waiting time before the
automatic running of the VFD when powering off and
then powering on.
Output frequency
Running
Power off Power on
Running
t
t1 t2
t1=P01.22
t2=P01.23
Setting range: 0.0–3600.0s (valid when P01.21=1)
1.0s
○