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 fre-
quency 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 con-
verter 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 po-
tentiometer). 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 result-
ing 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 ref-
erence 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 Activates par. 14-10
Mains Failure
. Mains failure inverse is active
in the Logic “0” situation.
[52]
Run Permissive
The input terminal, for which the Run permissive has been pro-
grammed must be logic “1” before a start command 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
2. Parameter Description
VLT
®
AQUA Drive Programming Guide
80
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2