All digital inputs can be programmed to these functions:
[0] No operation No reaction to signals transmitted to the terminal.
[1] Reset Resets frequency converter after a TRIP/ALARM. Not all alarms can be reset.
[2] Coast inverse (Default Digital input 27): Coasting stop, inverted input (NC). The frequency converter leaves the motor in
free mode. Logic ‘0’ => coasting stop.
[3] Coast and reset inverse Reset and coasting stop Inverted input (NC). Leaves motor in free mode and resets frequency converter.
Logic ‘0’ => coasting stop and reset.
[4] Quick stop inverse Inverted input (NC). Generates a stop in accordance with quick-stop ramp time set in par. C-23 Quick Stop
Decel Time. When motor stops, the shaft is in free mode. Logic ‘0’ => Quick-stop.
[5] DC-brake inverse Inverted input for DC braking (NC). Stops motor by energizing it with a DC current for a certain time period.
See par. B-01 DC Brake Current to par. B-03 DC Brake Cut In Speed [RPM]. The function is only active when
the value in par. B-02 DC Braking Time is different from 0. Logic ’0’ => DC braking.
[6] Stop inverse 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. F-08 Decel Time 1, par. E-11 Decel
Time 2, par. E-13 Decel Time 3, par. E-15 Decel Time 4).
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 Torque limit &
stop [27] and connect this digital output to a digital input that is configured as coast.
[8] Start (Default Digital input 18): Select start for a start/stop command. Logic ‘1’ = start, logic ‘0’ = stop.
[9] Latched start The motor starts, if a pulse is applied for min. 2 ms. The motor stops when Stop inverse is activated.
[10] Reversing (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 par. H-08 Reverse Lock. The function is not active in process closed loop.
[11] Start reversing Used for start/stop and for reversing on the same wire. Signals on start are not allowed at the same time.
[12] Enable start forward Disengages the counterclockwise movement and allows for the clockwise direction.
[13] Enable start reverse Disengages the clockwise movement and allows for the counterclockwise direction.
[14] Jog (Default Digital input 29): Use to activate jog speed. See par. C-20 Jog Speed [Hz].
[15] Preset reference on Shifts between external reference and preset reference. It is assumed that External/preset [1] has been
selected in par. F-54 Reference Function. Logic '0' = external reference active; logic '1' = one of the eight
preset references is active.
[16] Preset ref bit 0 Preset ref. bit 0,1, and 2 enables a choice between one of the eight preset references according to the
table below.
[17] Preset ref bit 1 Same as Preset ref bit 0 [16].
[18] Preset ref bit 2 Same as Preset ref bit 0 [16].
Preset ref. bit
2 1 0
Preset ref. 0 0 0 0
Preset ref. 1 0 0 1
Preset ref. 2 0 1 0
Preset ref. 3 0 1 1
Preset ref. 4 1 0 0
Preset ref. 5 1 0 1
Preset ref. 6 1 1 0
Preset ref. 7 1 1 1
AF-650 GP Programming Guide
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