Danfoss VLT AQUA Drive FC 200 Programming Manual page 69

Parameter Description
All = Terminals 18, 19, 27, 29, 32, X30/2, X30/3, X30/4. X30/
are the terminals on MCB 101.
Functions dedicated to only one digital input are stated in
the associated parameter.
All digital inputs can be programmed to these functions:
[0] No operation No reaction to signals transmitted to
terminal.
[1] Reset Resets adjustable frequency drive after a
TRIP/ALARM. Not all alarms can be reset.
Leaves motor in free mode. Logic '0' ⇒
[2] Coast inverse
coasting stop.
(Default Digital input 27): Coasting stop,
inverted input (NC).
[3] Coast and Reset and coasting stop Inverted input
reset inverse (NC).
Leaves motor in free mode and resets the
adjustable frequency drive. Logic '0' ⇒
coasting stop and reset.
[5] DC brake Inverted input for DC braking (NC).
inverse Stops motor by energizing it with a DC
current for a certain time period. See
2-01 DC Brake Current to 2-03 DC Brake Cut-
in Speed [RPM]. The function is only active
when the value in 2-02 DC Braking Time is
different from 0. Logic '0' ⇒ DC braking.
This selection is not possible when
1-10 Motor Construction is set to [1] PM,
non-salient SPM
[6] Stop inverse Stop Inverted function. Generates a stop
function when the selected terminal goes
from logical level '1' to '0'. The stop is
performed according to the selected ramp
time (3-42 Ramp 1 Ramp-down Time and
3-52 Ramp 2 Ramp-down Time.
NOTICE!
When the adjustable frequency drive is
at the torque limit and has received a
stop command, it may not stop by
itself. To ensure that the adjustable
frequency drive stops, configure a
digital output to [27] Torque limit &
stop and connect this digital output to
a digital input that is configured as
coast.
[7] External Same function as Coasting stop, inverse,
Interlock but External Interlock generates the alarm
message 'external fault' on the display
when the terminal which is programmed
for Coast Inverse is logic '0'. The alarm
message will also be active via digital
outputs and relay outputs, if programmed
®
VLT AQUA Drive Programming Guide
[8]
[9]
[10] Reversing
[11] Start reversing Used for start/stop and for reversing on the
[14] Jog
[15] Preset
[16] Preset ref bit 0 Enables a choice between one of the eight
[17] Preset ref bit 1 Enables a choice between one of the eight
[18] Preset ref bit 2 Enables a choice between one of the eight
[19] Freeze ref
®
MG20O622 - VLT is a registered Danfoss trademark
for External Interlock. The alarm can be
reset using a digital input or the [Reset] key
if the cause for the External Interlock has
been removed. A delay can be
programmed in 22-00 External Interlock
Delay. After applying a signal to the input,
the reaction described above will be
delayed with the time set in 22-00 External
Interlock Delay.
Start Select start for a start/stop command. Logic
'1' = start, logic '0' = stop.
(Default Digital input 18)
Latched start Motor starts, if a pulse is applied for min. 2
ms. Motor stops when Stop inverse is
activated
Changes direction of motor shaft rotation.
Select Logic '1' to reverse. The reversing
signal only changes the direction of
rotation. It does not activate the start
function. Select both directions in
4-10 Motor Speed Direction.
(Default Digital input 19).
same wire. Signals on start are not allowed
at the same time.
Used for activating jog speed. See 3-11 Jog
Speed [Hz].
(Default Digital input 29)
Used for shifting between external
reference on reference and preset reference. It is
assumed that [1] External/preset has been
selected in 3-04 Reference Function. Logic '0'
= external reference active; logic '1' = one
of the eight preset references is active.
preset references according to Table 3.12.
preset references according to Table 3.12.
preset references according to Table 3.12.
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
Table 3.12 Preset Ref. Bit
Freezes actual reference. The frozen
reference is now the point of enable/
3
2 1 0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
3-43
3