Danfoss FC 300 Design Manual page 169

FC 300 Design Guide
Motor check
Pre-magnetizing
DC Voltage U0
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].
Select Coasting [0] to leave the motor in free mode.
Select DC hold [1] to energize the motor with a
DC holding current (see par. 2-00).
Select Motor check [2] to check if a motor
is been connected.
Select Pre-magnetizing [3] to build up a magnetic
field while the motor is stopped. The motor can
now produce a quick torque build-up at start.
1-81 Min Speed for Function at Stop [RPM]
Range:
0 - 600 RPM
Function:
Set the speed at which to activate par.
1-80 Function at stop.
1-82 Min Speed for Function at Stop [Hz]
Range:
0.0 - 500 Hz
Function:
Set the output frequency at which to activate
par. 1-80 Function at stop.
1-83 Precise Stop Function
Option:
*
Precise ramp stop
Counter stop with reset
Counter stop without reset
Speed compensated stop
Speed compensated counter stop
with reset
Speed compensated counter stop
without reset
Function:
Select Precise ramp stop [0] to achieve high
repetitive precision at the stopping point.
Select Counter stop (with or without reset) to
run the adjustable frequency drive from receipt
of a pulse start signal until the number of pulses
programmed by the user in par. 1-84 Precise
* default setting ( ) display text
How to Program
[2] Stop Counter Value has been received at input
[3] terminal 29 or input terminal 33.
[4] 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 (starts
timing) at the edge of the start signal (when
it changes from stop to start).
Speed-compensated stop [3]: To stop at precisely
the same point, regardless of the present speed,
the stop signal is delayed internally when the
present speed is lower than the maximum
speed (set in par. 4-13).
Counter stop and Speed-compensated stop can
be combined with or without reset.
Counter stop with reset [1]. After each precise
stop, the number of pulses counted during
ramp-down 0 rpm is reset.
Counter stop without reset [2]. The number of
pulses counted during ramp-down to 0 rpm is
*
1 RPM
deducted from the counter value in par. 1-84.
This parameter cannot be adjusted while
the motor is running.
*
0.0 Hz
Enter the counter value to be used in the integrated
precise stop function, par. 1-83.
The maximum permissible frequency at
terminal 29 or 33 is 110 kHz.
[0]
[1]
[2]
[3]
Enter the delay time for sensors, PLCs, etc.
for use in par. 1-83 Precise Stop Function.
[4]
In speed compensated stop mode, the delay
time at different frequencies has a major
[5]
influence on the stop function.
1-9* Motor Temperature
"
Parameters for setting the temperature protection
features for the motor.
*
[ ] value for use in communication via serial communication port
MG.33.B6.22 - VLT is a registered Danfoss trademark
1-84 Precise Stop CounterValue
Range:
0 - 999999999
Function:
1-85 Precise Stop Speed Compensation Delay
Range:
1-100 ms
Function:
1-90 Motor Thermal Protection
Option:
No protection
*
100000
*
10 ms
[0]
169