Process sequence and signal states

No.

Sequence

PD

Signal states

[1]

General enable

PO 1:0 = "1"

Enable/emergency stop

PO 1:0

  • "1": Release
  • "0": Deceleration with emergency stop ramp

PO 1:1 = "1"

Enable/application stop

PO 1:1

  • "1": Release
  • "0": Deceleration according to application limit

PO 1:13 = "0"

Output stage inhibit (signal with highest priority)

PO 1:13

  • "0": Output stage enabled
  • "1": Output stage inhibited (the drive coasts to a stop or the brake is applied).

[1]

Activation of application mode 420 (Positioning absolute – Touchprobe remaining distance in direction of travel)

PO 6

420 (decimal)

[1]

Start/stop with fieldbus ramp

PO 1:7

PO 2

PO 3

PO 4

  • "1": The drive moves to the target position with the fieldbus profile values "Setpoint acceleration" and "Setpoint speed".
  • "0": The drive decelerates with the fieldbus profile value and is held at speed "0" with position control.

[2] and [5a]

Activate Touchprobe

When activated, the acknowledgment "Wait for trigger" (TP PI 1:0) is set.

TP
PO X:0

  • "0": No trigger event is evaluated
  • "1": The system waits for a trigger event.

[2] to [3] and [6] to [7]

Wait for trigger

The relative position can be changed at any time until the trigger event.

TL

PO X+2

PO X+3

"Relative position"
(high word)

"Relative position"
(low word)

[3] to [4] and from [7]

Trigger via DI 04

When the trigger has occurred, the new target position results from the actual position at the trigger time (detected value TP 1) and the currently active relative position. The value of the relative position is added if the direction of travel is positive and subtracted if the direction of travel is negative.

 

[4] to [6] and from [8]

If the actual position lies within the configured window width, the feedback "in position" is issued. The drive stops subject to position control. When the process restarts, the "In position" bit is reset.

PI 1:7

  • "1": "In position" signal active

[5] to [6]

To move to a new target position after a trigger event has occurred, "Activate Touchprobe" must first be set to "0" and then back to "1", and then "Start/stop" must have a rising edge.