Danfoss VLT AutomationDrive FC 301 Programming Manual page 118

Parameter Descriptions
Digital input function
Start homing
Activate touch
Relative position
Enable reference
3 3
Sync. to pos. mode
Home sensor
Home sensor inverse
Touch sensor
Touch sensor inverse
Speed mode
Power limit mot.
Power limit gen.
Power limit both
Light Load + Evacuation
Table 3.17 Digital Input Function
®
VLT AutomationDrive FC 301/FC 302 standard terminals
are 18, 19, 27, 29, 32, and 33. VLT
MCB 101 terminals are X30/2, X30/3, and X30/4.
Terminal 29 functions as an output only in FC 302.
Functions dedicated to only 1 digital input are stated in
the associated parameter.
All digital inputs can be programmed to these functions:
[0] No
operation
[1] Reset
[2] Coast
inverse
[3] Coast and
reset
inverse
[4] Quick stop
inverse
[5] DC brake
inverse
[6] Stop
inverse
116
VLT
Select Terminal
[110] All
[111] All
[112] All
[113] All
[114] All
[115] 18, 32, 33
[116] 18, 32, 33
[117] 18, 32, 33
[118] 18, 32, 33
[119] All
[231] All
[232] All
[233] All
[234] All
®
General Purpose I/O
No reaction to signals transmitted to the
terminal.
Resets the frequency converter after a trip/
alarm. Not all alarms can be reset.
(Default digital input 27): Coast stop, inverted
input (NC). The frequency converter leaves the
motor in free mode. Logic 0⇒coast stop.
Reset and coast stop inverted input (NC).
Leaves motor in free mode and resets
frequency converter. Logic 0⇒coast stop and
reset.
Inverted input (NC). Generates a stop in
accordance with 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 brake (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 2-03 DC Brake Cut In
Speed [RPM]. The function is only active when
the value in parameter 2-02 DC Braking Time is
different from 0. Logic 0⇒ DC brake.
Stop inverted function. Generates a stop
function when the selected terminal goes from
logical level 1 to logical level 0.
Danfoss A/S © 10/2019 All rights reserved.
®
AutomationDrive FC 301/302
[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
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, and
•
Parameter 3-72 Ramp 4 Ramp Down
Time.
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. Connect this
digital output to a digital input that is
configured as coast.
(Default digital input 18): Select start for a
start/stop command. Logic 1 = start,
logic 0 = stop.
If a pulse is applied for minimum 2 ms, the
motor starts. The motor stops when 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.
Disengages the counterclockwise movement
and allows clockwise direction.
Disengages the clockwise movement and
allows counterclockwise direction.
(Default digital input 29): Activate jog speed.
See parameter 3-11 Jog Speed [Hz].
Shifts 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 bit 0, 1, and 2 enable a choice
between 1 of the 8 preset references according
to Table 3.18.
Same as [16] Preset ref bit 0.
M0013101