Program features 13
Fault reaction for Power loss
When 20.06 UNDERVOLT CTRL = ENABLE(TIME) and 30.29 = ENABLE (fault ramp
stop enabled) then drive faults after being in under-voltage control for 500ms. Fault
will also trigger an emergency ramp stop.
Related parameters are listed in the table below:
Settings
Smooth start ramp
For PM motor there is possibility for different ramping during the smooth start period.
This function can ensure succesful start of PM motor in case of high inertia and
encoderless operation.
When option “SMOOTH START”(11) of parameter 22.01 “ACC/DEC 1/2 SEL” is
selected, then ramp 2 is used while smooth start is active and ramp 1 when smooth
start is not active.
Related parameters are listed in the table below:
Settings
Start enable
When start enable 1 or 2 is lost while drive is running, then drive will make the stop
set by par. 21.02 STOP FUNCTION.
Related parameters are listed in the table below:
Settings
Parameter
Additional information
2006 UNDERVOLT CTRL
Activates or deactivates the undervoltage control of
the intermediate DC link.
3029 FAULT RAMP STOP
Enables emergency ramp stop when drive faults
Parameter
Additional information
2201 ACC/DEC 1/2 SEL
Source from which the drive reads the signal
that selects between the two ramp pairs.
Parameter
Additional information
1608 START ENABLE 1
Selects the source for the Start enable 1 signal.
1609 START ENABLE 2
Selects the source for the Start enable 2 signal.
2102 STOP FUNCTION
Selects the motor stop function.
