1-76 Start Current
Range: Function:
0.00 A
*
[0.00 - par. 1-24] Some motors, such as cone rotor motors, need extra current/
starting speed (boost) to disengage the mechanical brake. Ad-
just par. 1-74
Start Speed [RPM]
and par. 1-76 to get this boost.
Set the required current value to disengage the mechanical
brake. Set par. 1-72
Start Function
to [3] or [4], and set a start
delay time in par. 1-71
Start Delay
. A reference signal must be
present.
2.4.8. 1-8* Stop Adjustments
Parameters for setting special stop features for the motor.
1-80 Function at Stop
Option: Function:
Select the drive function after a stop command or after the
speed is ramped down to the settings in par. 1-81
Min Speed
for Function at Stop [RPM]
.
[0]
*
Coast Leaves motor in free mode.
[1] DC hold Energizes motor with a DC holding current (see par. 2-00).
[2] Motor check Checks if a motor has been connected.
[3] Pre-magnetizing Builds up a magnetic field while the motor is stopped. The motor
can now produce a quick torque build-up at start.
[4] DC Voltage U0
1-81 Min Speed for Function at Stop [RPM]
Range: Function:
3 RPM
*
[0 - 600 RPM] Set the speed at which to activate par. 1-80
Function at stop
.
1-82 Min Speed for Function at Stop [Hz]
Range: Function:
0.0 Hz
*
[0.0 - 500 Hz] Set the output frequency at which to activate par. 1-80
Function
at stop
.
1-83 Precise Stop Function
Option: Function:
[0]
*
Precise ramp stop Achieves high repetitive precision at the stopping point.
[1] Counter stop with re-
set
Runs the frequency converter from receipt of a pulse start signal
until the number of pulses programmed by the user in par. 1-84
Precise Stop Counter Value
has been received at input terminal
29 or input terminal 33.
An internal stop signal will activate the normal ramp down time
(par. 3-42, 3-52, 3-62 or 3-72). The counter function is activated
FC 300 Programming Guide 2. How to Programme
MG.33.M2.02 - VLT
®
is a registered Danfoss trademark
57
2
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