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Preset ref. bit
2
1
0
Preset ref. 0
0
0
0
Preset ref. 1
0
0
1
Preset ref. 2
0
1
0
Preset ref. 3
0
1
1
Preset ref. 4
1
0
0
Preset ref. 5
1
0
1
Preset ref. 6
1
1
0
Preset ref. 7
1
1
1
[19]
Freeze ref
Freezes 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 ramp 2 (par. 3-51 and 3-52) in
the range 0 - par. 3-03
Maximum Reference
.
[20]
Freeze output
Freezes actual motor frequency (Hz). The frozen motor frequency 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 ramp 2 (par. 3-51
and 3-52) in the range 0 - par. 1-23
Motor Frequency
.
NB!
When Freeze output is active, the frequency converter cannot be stopped via a low ‘start [13]’
signal. Stop the frequency converter via a terminal programmed for Coasting inverse [2] or
Coast and reset, inverse [3].
[21]
Speed up
For digital control of the up/down speed is desired (motor potentiometer). Activate this function by selecting
either Freeze reference or Freeze output. When Speed up is activated for less than 400 msec. the resulting
reference will be increased by 0.1 %. If Speed up is activated for more than 400 msec. the resulting reference
will ramp according to Ramp 1in par. 3-41.
[22]
Speed down
Same as Speed up [21].
[23]
Set-up select bit 0
Selects one of the four set-ups. Set par. 0-10
Active Set-up
to Multi Set-up.
[24]
Set-up select bit 1
Same as Set-up select bit 0 [23].
(Default Digital input 32)
[32]
Pulse input
Select Pulse input when using a pulse sequence as either reference or feedback. Scaling is done in par. group
5-5*.
[34]
Ramp bit 0
Select which ramp to use. Logic “0” will select ramp 1 while logic “1” will select ramp 2.
[36]
Mains failure inverse
Select to activate function selected in par. 14-10
Mains failure
. Mains failure is active in the Logic “0” situation.
[37]
Fire mode
A signal applied will put the frequency converter into Fire Mode and all other commands will be disregarded.
See 24-0*
Fire Mode
.
[52]
Run Permissive
The input terminal, for which the Run permissive has been programmed must be logic “1” before a start com-
mand can be accepted. Run permissive has a logic ‘AND’ function related to the terminal which is programmed
for
START
[8],
Jog
[14] or
Freeze Output
[20], which means that in order to start running the motor, both
conditions must be fulfilled. If Run Permissive is programmed on multiple terminals, Run permissive needs only
be logic ‘1’ on one of the terminals for the function to be carried out. The digital output signal for Run Request
(
Start
[8],
Jog
[14] or
Freeze output
[20]) programmed in par. 5-3* Digital outputs, or par. 5-4* Relays, will
not be affected by Run Permissive.
[53]
Hand start
A signal applied will put the frequency converter into Hand mode as if button
Hand On
on the LCP has been
pressed and a normal stop command will be overridden. If disconnecting the signal, the motor will stop. To
make any other start commands valid, another digital input must be assign to
Auto Start
and a signal applied
to this. The
Hand On
and
Auto On
buttons on the LCP has no impact. The
Off
button on the LCP will override
Hand Start
and
Auto Start
. Press either the
Hand On
or
Auto On
button to make
Hand Start
and
Auto Start
active
again. If no signal on neither
Hand Start
nor
Auto Start
, the motor will stop regardless of any normal Start
command applied. If signal applied to both
Hand Start
and
Auto Start
, the function will be
Auto Start
. If pressing
the
Off
button on the LCP the motor will stop regardless of signals on
Hand Start
and
Auto Start
.
[54]
Auto start
A signal applied will put the frequency converter into Auto mode as if the LCP button
Auto On
has been pressed.
See also
Hand Start
[53]
[55]
DigiPot Increase
Uses the input as an INCREASE signal to the Digital Potentiometer function described in parameter group 3-9*
[56]
DigiPot Decrease
Uses the input as a DECREASE signal to the Digital Potentiometer function described in parameter group 3-9*
[57]
DigiPot Clear
Uses the input to CLEAR the Digital Potentiometer reference described in parameter group 3-9*
[60]
Counter A (up)
(Terminal 29 or 33 only) Input for increment counting in the SLC counter.
VLT
®
HVAC Drive Programming Guide
3. Parameter Description
MG.11.C5.02 - VLT
®
is a registered Danfoss trademark
67
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