Danfoss VLT AutomationDrive FC 361 Programming Manual page 69

Parameter Descriptions
The standard terminals are 18, 19, 27, 29, 32, and 33. VLT
General Purpose I/O MCB 101 terminals are X30/2, X30/3,
and X30/4. Terminal 29 functions as an output.
Functions dedicated to only 1 digital input are stated in
the associated parameter.
All digital inputs can be programmed to these functions:
[0] No No reaction to signals transmitted to the
operation terminal.
[1] Reset Resets frequency converter after a trip/alarm.
Not all alarms can be reset.
[2] Coast (Default digital input 27): Coast stop, inverted
inverse input (NC). The frequency converter leaves the
motor in free mode. Logic 0⇒coast stop.
[3] Coast and Reset and coast stop inverted input (NC).
reset Leaves motor in free mode and resets
inverse frequency converter. Logic 0⇒coast stop and
reset.
[4] Quick stop Inverted input (NC). Generates a stop in
inverse 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.
[5] DC brake Inverted input for DC brake (NC). Stops motor
inverse 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.
[6] Stop Stop inverted function. Generates a stop
inverse function when the selected terminal goes from
logical level 1 to logical level 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, 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.
MG06J202
Programming Guide
®
[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
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 4.9 Preset Reference Bit
[19] Freeze
ref
Danfoss A/S © 03/2019 All rights reserved.
(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 4.9.
Same as [16] Preset ref bit 0.
Same as [16] Preset ref bit 0.
2 1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
Freezes the actual reference, which is now the
point of enable/condition to be used for [21] Speed
up and [22] Speed down. If speed up/speed down
is used, the speed change always follows ramp 2
(parameter 3-51 Ramp 2 Ramp Up Time and
parameter 3-52 Ramp 2 Ramp Down Time) in the
range 0–parameter 3-03 Maximum Reference.
4 4
0
0
1
0
1
0
1
0
1
67