Parameters: 5-** Digital In/Out; 5-1* Digital Inputs - Danfoss VLT Midi Drive FC 280 Programming Manual

Parameter Descriptions

4.6 Parameters: 5-** Digital In/Out

5-00 Digital Input Mode
Option: Function:
Set NPN or PNP mode for digital inputs 18, 19, 27, 29,
32, and 33. Digital input mode.
[0] PNP Action on positive directional pulses (0). PNP systems
*
are pulled down to ground (GND).
4 4
[1] NPN Action on negative directional pulses (1). NPN
systems are pulled up to +24 V, internally in the
frequency converter.
5-01 Terminal 27 Mode
Option:
[0] Input
*
[1] Output Define terminal 27 as a digital output.

4.6.1 5-1* Digital Inputs

The digital inputs are used for selecting various functions
in the frequency converter.
5-10 to 5-15 Digital Inputs
[0] No
operation
[1] Reset
[2] Coast
inverse
[3] Coast and
reset
inverse
[4] Quick stop
inverse
[5] DC-brake
inverse
52
Function:
NOTICE
This parameter cannot be adjusted while
the motor is running.
Define terminal 27 as a digital input.
No reaction to signals transmitted to the
terminal.
Resets frequency converter after a trip/alarm.
Not all alarms can be reset.
(Default Digital input 27): Coasting stop,
inverted input (NC). The frequency converter
leaves the motor in free mode. Logic
0⇒coasting stop.
Reset and coasting stop inverted input (NC).
Leaves motor in free mode and resets
frequency converter. Logic 0⇒coasting stop
and reset.
Inverted input (NC). Generates a stop in
accordance with the quick stop ramp time set
in parameter 3-81 Quick Stop Ramp Time. When
the motor stops, the shaft is in free mode.
Logic 0⇒Quick-stop.
Inverted input for DC braking (NC). Stops the
motor by energizing it with a DC current for a
certain time period. See parameter 2-01 DC
Brake Current to parameter 2-04 DC Brake Cut In
Speed [Hz]. The function is only active when
the value in parameter 2-02 DC Braking Time is
different from 0. Logic 0⇒DC braking.
Danfoss A/S © 07/2016 All rights reserved.
®
VLT Midi Drive FC 280
[6] Stop
inverse
[8] Start
[9] Latched
start
[10] Reversing
[11] Start
reversing
[12] Enable
start
forward
[13] Enable
start
reverse
[14] Jog
[15] Preset
reference
on
[16] Preset ref
bit 0
[17] Preset ref
bit 1
[18] Preset ref
bit 2
NOTICE
When the frequency converter is at the
torque limit and has received a stop
command, it may not stop by itself. To
ensure that the frequency converter
stops, configure a digital output to [27]
Torque limit and stop and connect this
digital output to a digital input that is
configured as coast.
Stop inverted function. Generates a stop
function when the selected terminal goes from
logic 1 to logic 0. The stop is performed
according to the selected ramp time
(parameter 3-42 Ramp 1 Ramp Down Time,
parameter 3-52 Ramp 2 Ramp Down Time,
parameter 3-62 Ramp 3 Ramp down Time,
parameter 3-72 Ramp 4 Ramp Down Time).
Default digital input 18. Select start for a start/
stop command. Logic 1=start, logic 0=stop.
The motor starts when a pulse is applied for
minimum 2 ms. The motor stops when [6] Stop
inverse is activated or a reset command (via DI)
is given.
Default digital input 19. Change the 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
parameter 4-10 Motor Speed Direction. The
function is not active in process closed loop.
Used for start/stop and for reversing on the
same wire. Signals on start are not allowed at
the same time.
Disengage the counterclockwise movement
and allows for the clockwise direction.
Disengage the clockwise movement and allows
for the counterclockwise direction.
Default digital input 29. Use to activate jog
speed. See parameter 3-11 Jog Speed [Hz].
Shift between external reference and preset
reference. It is assumed that [1] External/preset
has been selected in parameter 3-04 Reference
Function. Logic 0 = external reference active;
logic 1=1 of the 8 preset references is active.
Preset reference bits 0, 1, and 2 enable the
selection of 1 of the 8 preset references
according to Table 4.1.
Same as [16] Preset ref bit 0.
Same as [16] Preset ref bit 0.
MG07C302