Danfoss vlt series Operating Instructions Manual page 15

5 Parameter Set-up
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
5
[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
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
[19] Freeze ref
14
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 con-
verter. Logic '0' => coasting stop and reset.
Inverted input (NC). Generates a stop in accordance with quick-stop ramp time set in par. 3-81
Stop Ramp Time . When motor stops, the shaft is in free mode. Logic '0' => Quick-stop.
Inverted input for DC braking (NC). Stops motor by energizing it with a DC current for a certain time
DC Brake Current to par. 2-03 DC Brake Cut In Speed [RPM] . The function is
period. See par. 2-01
only active when the value in par. 2-02
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 (par. 3-42
Time , par. 3-52 Ramp 2 Ramp down Time , par. 3-62 Ramp 3 Ramp down Time , par. 3-72 Ramp 4
Ramp Down Time ).
NB!
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
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.
The motor starts, if a pulse is applied for min. 2 ms. The motor stops when Stop inverse is activated.
(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.
Motor Speed Direction . The function is not active in process closed
Select both directions in par. 4-10
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 for the clockwise direction.
Disengages the clockwise movement and allows for the counterclockwise direction.
(Default Digital input 29): Use to activate jog speed. See par. 3-11
Shifts between external reference and preset reference. It is assumed that
Reference Function . Logic '0' = external reference active; logic '1' = one
been selected in par. 3-04
of the eight preset references is active.
Preset ref. bit 0,1, and 2 enables a choice between one of the eight preset references according to
the table below.
Same as Preset ref bit 0 [16].
Same as Preset ref bit 0 [16].
2
0
0
0
0
1
1
1
1
Freezes the actual reference, which is now the point of enable/condition for Speed up and Speed
down to be used. If Speed up/down is used, the speed change always follows ramp 2
MI.33.G3.02 - VLT® is a registered Danfoss trademark
FC 300 Extended Relay Card Operating In-
DC Braking Time is different from 0. Logic '0' => DC braking.
Torque limit & stop [27] and connect this digital
Jog Speed [Hz] .
1
0
0
1
1
0
0
1
1
structions
Quick
Ramp 1 Ramp Down
External/preset [1] has
0
0
1
0
1
0
1
0
1