Danfoss VLT Flow Drive FC 111 - Page 75

5-12 Terminal 27 Digital Input
Default value: [2] Coast inverse
Parameter type: Option
2-setup: All setups
Conversion index: -
Data type: u_int8
Change during operation: True
Parameter for configuring the input function on input terminal 27.
Table 136: Option:
[0]
No operation
No reaction to signals transmitted to the terminal.
[1]
Reset
Reset the after a trip/alarm. Trip lock alarms can be reset.
[2]
Coast inverse
Leave the motor in free mode. Logic 0⇒coast stop.
[3]
Coast and reset
inverse
Reset and coast stop inverted input (NC). Leaves the motor in free mode and resets the drive. Logic
0⇒coast stop and reset.
[4]
Quick stop in-
verse
Inverted input (NC). Generates a stop in accordance with the quick-stop ramp time set in parameter
3-81 Quick Stop Ramp Time. After ramping down, the shaft is in free mode.
[5]
DC-brake in-
verse
Inverted input for DC braking (NC). Stops the motor by energizing it with DC current for a certain time
period, see parameter 2-01 DC Brake Current. The function is only active when the value in parameter
2-02 DC Braking Time is different from 0. This selection is not possible when parameter 1-10 Motor Con-
struction is set to [1] PM non-salient SPM.
[6]
Stop inverse
The stop inverse function generates the stop function when the selected terminal goes from logical
level 1 to 0 (not latched). Stop is performed according to selected ramp time.
[7]
External Inter-
lock
Same function as coast stop, inverse, but external interlock generates the alarm message external fault
on the display when the terminal programmed for coast inverse is logic 0. If programmed for external
interlock, the alarm message is also active via digital outputs and relay outputs. If the cause for the
external interlock is removed, the alarm can be reset using a digital input, fieldbus, or the [Reset] key.
[8]
Start
Select start for a start/stop command. Logic 1 = start, logic 0 = stop. (Default digital input 18).
[9]
Latched start
If a pulse is applied for a minimum of 2 ms, the motor starts. The motor stops when stop inverse is
activated.
[10]
Reversing
Change direction of motor shaft rotation. The reversing signal only changes the direction of rotation, it
does not activate the start function. Select [2] Both directions in parameter 4-10 Motor Speed Direction. 0
= normal, 1 = reversing.
[11]
Start reversing
Use for start/stop and for reversing at the same time. Signals on [8] Start are not allowed at the same
time. 0 = stop, 1 = start reversing.
[14]
Jog
Used for activating jog speed. See parameter 3-11 Jog Speed [Hz]. (Default digital input 29).
[16]
Preset ref bit 0
Enable a selection of 1 of the 8 preset references according to Table 132.
[17]
Preset ref bit 1
Enable a selection of 1 of the 8 preset references according to Table 132.
[18]
Preset ref bit 2
Enable a selection of 1 of the 8 preset references according to Table 132.
[19]
Freeze refer-
ence
Freeze actual reference. The frozen reference is now the point of enable/condition for speed up and
speed down to be used. If speed up/speed down is used, a speed change always follows ramp 2 (pa-
rameter 3-51 Ramp 2 Ramp Up Time and parameter 3-52 Ramp 2 Ramp Down Time) in the range parame-
ter 3-02 Minimum Reference - parameter 3-03 Maximum Reference.
[20]
Freeze output
Freezes actual reference. The frozen reference is now the point of enable/condition for speed up and
speed down to be used. If speed up/speed down is used, the speed change always follows ramp 2.
[21]
Speed up
For digital control of the up/down speed (motor potentiometer). Activate this function by selecting
either freeze reference or freeze output. When speed up is activated for less than 400 ms, the resulting
AU363928304090en-000101 / 130R0982 | 75Danfoss A/S © 2021.07
Parameters
VLT® Flow Drive FC 111
Programming Guide