Danfoss VLT AQUA Programming Manual page 80

2. Parameter Description
2
[19]
[20]
[21]
[22]
[23]
[24]
[32]
[34]
[36]
[52]
80
Preset ref. bit
Preset ref. 0
Preset ref. 1
Preset ref. 2
Preset ref. 3
Preset ref. 4
Preset ref. 5
Preset ref. 6
Preset ref. 7
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
Reference
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
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.
Speed down Same as Speed up [21].
Set-up select bit 0 Selects one of the four set-ups. Set par. 0-10
Multi Set-up.
Set-up select bit 1 Same as Set-up select bit 0 [23].
(Default Digital input 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*.
Ramp bit 0 Select which ramp to use. Logic "0" will select ramp 1 while logic
"1" will select ramp 2.
Mains failure inverse Activates par. 14-10
in the Logic "0" situation.
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
Freeze Output
MG.20.O2.02 - VLT
®
VLT
2
0
0
0
0
1
1
1
1
.
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].
Mains Failure
. Mains failure inverse is active
[20], which means that in order to start running
®
is a registered Danfoss trademark
AQUA Drive Programming Guide
1 0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
Maximum
Active Set-up
to
START Jog
[8], [14] or