5
Commissioning
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Festo – GDCP-CMMO-ST-EA-SY-EN – 2017-05c – English
5.5.5
Carrying out homing (REF)
Homing is started by input REF 0
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1. If an input RECORD 1…7 is active at the same time, an error is
reported. The REF input must remain enabled during the homing operation. As soon as homing has
been concluded, the output REFERENCED =1 (Motion complete).
If after the homing operation movement ensues to the datum point on the axis, the REFERENCED out
put is not set until that axis datum point is reached.
Only after that can the REF input be disabled. The REFERENCED output remains enabled while the
actuator is being homed.
1
3
Ready
DOUT10
Ref
DIN8
REFERENCED
DOUT9
2
RECORD 1…7
DIN1…7
Homing Switch
X1A.2
1
Start homing
2
Homing point found
3
Axis zero point reached
Fig. 5.8
Valve profile: homing to reference switch
The input for reference switch signal to X1A.2 signals that the homing position has been
reached. The type of switch used (NC/NO) is selected using FCT [...][Axis] Axis Options.
Detailed information about the homing process and about how the homing point is de
termined
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