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Unloading a probe arm

  • Recall the pin datum XD, YD, ZD set in step 8 of the port datum procedure in the 'Port datum procedure' section
  • Ensure the PHS-2 has a probe arm fitted
  • Ensure the PHS-2 is oriented into the correct position to enter the port (D 0°, E ­90°)

Position relative to pin datum XD, YD, ZD:

 X-axis

 Y-axis

 Z-axis

 Point

 Description

+53.5

-135.5

-31.5

F

Stand off position.

Head is in front of port and has probe arm fitted.

Head is orientated to D 0°, E­ 90°.

 -114  

Transit stage.

PHS-2 contacts the ACR2 port lid. This may cause a probe trigger so the probing system should be disabled before reaching this point.

 -20  

Transit stage.

Probe arm engages port location pins. Renishaw recommend that servo control of the head axes should be switched off at this point.

NOTE: Remove only 24 V servo power from the head. Do not remove logic power as this will cause head position loss.

+53.5+14.5-31.5E

PHS-2 fully located in ACR2 port.

+50+14.5-35.5D

ACR2 ready to activate unlock mechanism.

+50+14.5+68.5C

Probe arm unlocked from PHS-2 head.

+74+14.5+68.5B

Move PHS-2 head clear of probe arm.

 -20  

Transit stage.

Servo control of the head should be re-enabled.

NOTE: The position of the head may have changed under gravity and that the head should be help in its current position before returning to the previous orientation.

 -114  

Transit stage.

PHS-2 clears the ACR2 port lid.

+74-135.5+68.5A

Stand off position.

Head is in front of port with no probe arm fitted.