VLT
®
FCM Series
Reset
zeroes the FC motor after an alarm;
however, not all alarms can be reset without
disconnecting from mains.
Coasting stop, inverse
is used for making the FC motor
run freely to stop. Logic
’
0
’
leads to coasting stop.
Reset and coasting stop, inverse,
is used for activating
coasting stop at the same time as reset.
Logic ‘0
’
leads to coasting stop and reset.
Quick stop, inverse
is used for stopping the
motor in accordance with the quick-stop ramp
(set in parameter 212).
Logic
’
0
’
leads to a quick-stop.
DC breaking, inverse
is used for stopping the
motor by energizing it with a DC voltage for a
given time, see parameters 126-132.
Please note that this function is only active if the
settings of parameters 126-132 is different from
0. Logic
’
0
’
leads to DC braking.
Stop inverse
is activated by interrupting the voltage
to the terminal. This means that if the terminal
has no voltage, the motor cannot run. The stop
will be effected in accordance with the selected
ramp (parameters 207/208).
None of the above-mentioned stop
commands are to be used as
disconnection switch in connection
with repairs. Cut mains instead.
Start
, is selected if a start/stop command is desired.
Logic
’
1
’
= start, logic
’
0
’
= stop (stand-by).
Latched start
- if a pulse is applied for min. 20 ms,
the motor will start, provided no stop command. The
motor stops if Stop inverse is activated briefly.
Reversing
is used for changing the direction of
rotation of the motor shaft. Logic "0" will not lead
to reversing. Logic "1" will lead to reversing. The
reversing signal only changes the direction of rotation;
it does not activate the start function.
Should not be used with
Process, closed loop mode
.
Start reversing
, is used for start/stop and for reversing
with the same signal. No start signal is allowed at the
same time. Acts as latch start reversing, provided latch
start has been chosen for another terminal.
Should not be used with
Process, closed loop mode
.
Start clockwise
is used if the motor shaft is only to
be able to rotate clockwise when starting.
Should not be used with
Process, closed loop mode
.
Start counter-clockwise, on
is used if the motor shaft is
to be able to rotate counter-clockwise when started.
Should not be used with
Process, closed loop mode
.
Jog
is used for overriding the output frequency to the
jog frequency set in parameter 213. The ramp time
can be set in parameter 211. Jog is not active if a
stop command has been given (start-disable).
Jog overrides stand-by.
Freeze reference
- freezes the actual reference. The
frozen reference is now the point of enable/ condition
for
Speed up
and
Speed down
to be used.
If speed up/down is used, the speed change
always follows the normal ramp (parameters
207/208) in the range 0 - Ref
MAX
.
Freeze output
- freezes the actual motor frequency
(Hz). The frozen motor frequency is now the
point of enable/condition for
Speed up
and
Speed down
to be used.
Freeze output overrides start/stand-by, slip
compensation and closed loop process control.
If speed up/down is used, the speed change
always follows the normal ramp (parameters
207/208) in the range 0 - f
M,N
.
Speed up
and
Speed down
are selected if digital
control of the up/down speed is desired (motor
potentiometer). This function is only active if
Freeze
reference
or
Freeze output
has been selected.
As long as there is a logic ‘1‘ on the terminal
selected for speed up, the reference or the
output frequency will increase.
As long as there is a logic ‘1‘ on the terminal
selected for speed down, the reference or the
output frequency will be reduced.
Pulses (logic ‘1‘ minimum high for 20 ms and a
minimum pause of 20 ms) will lead to a change of
speed of 0.1% (reference) or 0.1 Hz (output frequency).
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.03.H3.02 - VLT is a registered Danfoss trademark
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