TECHTOP TD20 Series - Page 80

TD20 Series VFD Function Parameters
-78-
Function
code
Name
Detailed instruction of parameters
Default
value
Modify
P11.11
Detection level
of the
underload
pre-alarm
If the VFD current or the output current is lower than
P11.11, and its lasting time is beyond P11.12, the VFD
will output underload pre-alarm.
Setting range of P11.11: 0–P11.09
Setting range of P11.12: 0.1–3600.0s
50%
○
P11.12
Detection time
of the
underload
pre-alarm
1.0s
○
P11.13
Output
terminal action
selection
during fault
Select the action of fault output terminals on
undervoltage and fault reset.
0x00–0x11
LED ones:
0: Action under fault undervoltage
1: No action under fault undervoltage
LED tens:
0: Action during the automatic reset
1: No action during the automatic reset
0x00
○
P11.14
Speed
deviation
detection
0.0–50.0%
Set the speed deviation detection time.
10.0%
○
P11.15
Speed
deviation
detection time
This parameter is used to set the speed deviation
detection time.
Actual detection
value
t1
t2
t1<t2, so the VFD continues to work
t2=P11.15
In running
Fault output dEu
Speed
Set detection
value
Time
Setting range of P11.15: 0.0–10.0s
0.5s
○
P11.16
Automatic
frequency-d
ecreasing at
voltage drop
0: Invalid
1: Valid; ensure rated output torque when voltage drop
0
○
P13 Group Control parameters of SM
P13.13
Braking
current of
After the VFD starts, when P01.00=0, set P13.14 to
non-zero value and begin short circuit braking.
0.0%
○