Danfoss vlt aqua, Инструкция по эксплуатации, Страница: 92 / 184

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 Slow 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/con-
dition for Speed up and Slow 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
.
NOTE!
When Freeze output is active, the adjustable frequency drive cannot be stopped
via a low ‘start [13]’ signal. Stop the adjustable frequency drive 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 1 in par. 3-41.
[22] Slow 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] Line failure inverse Activates par. 14-10
Line Failure
. Line failure inverse is active in the Logic “0” situation.
[52] Run Permissive The input terminal for which run permissive has been programmed 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 the motor, both conditions must be fulfilled. If run permissive is programmed on multiple
terminals, it 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 adjustable frequency drive into hand mode as if the button Hand On
on the LCP has been pressed; 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 have no
effect. The Off button on the LCP will override Hand Start and Auto Start . Press either the Hand
On
or
Auto On
button to reactivate
Hand Start
and
Auto Start
. If there is no signal on either
Hand
Start
or
Auto Start
, the motor will stop regardless of any normal start command applied. If a signal
applied to both
Hand Start
and
Auto Start
, the function will be
Auto Start
. If you press the
Off
button
on the LCP, the motor will stop regardless of the signals on
Hand Start
and
Auto Start
.
[54] Auto-start A signal applied will put the adjustable frequency drive 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*.
8 How to program the adjustable frequency
drive
VLT
®
AQUA Drive
Instruction Manual
8-22
MG.20.M5.22 - VLT
®
is a registered Danfoss trademark
8