speed change always follows ramp 2
(
3-51 Ramp 2 Ramp-up Time
and
3-52 Ramp
2 Ramp-down Time
) in the range 0 -
.
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
.
[22] Slow
Same as Speed up [21].
[23] Set-up select
bit 0
Selects one of the four set-ups. Set
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
Activates
14-10 Line Failure
. Line failure
inverse is active in the Logic “0” situation.
[52] Run
Permissive
The input terminal, for which the 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, 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. group 5-3* Digital outputs, or par.
group 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
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 assigned 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 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*
[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 Potenti-
ometer reference described in parameter
group 3-9*
[60] Counter A (up) (Terminal 29 or 33 only) Input for increment
counting in the SLC counter.
[61] Counter A
(down)
(Terminal 29 or 33 only) Input for
decrement counting in the SLC counter.
[62] Reset Counter
A
Input for reset of counter A.
[63] Counter B (up) (Terminal 29 and 33 only) Input for
increment counting in the SLC counter.
[64] Counter B
(down)
(Terminal 29 and 33 only) Input for
decrement counting in the SLC counter.
[65] Reset Counter
B
Input for reset of counter B.
[66] Sleep Mode
Forces adjustable frequency drive into sleep
mode (see par. group 22-4*,
Sleep Mode
).
Reacts on the rising edge of signal applied!
[78] Reset
Preventive
Maintenance
Word
Resets all data in
16-96 Maintenance Word
to 0.
The setting options below are all related to the cascade
controller. Wiring diagrams and settings for parameter, see
par. group 25-** for more details.
How to program the adjustab...
VLT AQUA 12-Pulse High Power Instruction Manual
MG.20.Y1.22 - VLT
®
is a registered Danfoss trademark
6-19
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