Interface switch descriptions

HCU1 operation

When the system is used in conjunction with an HCU2 hand control unit, the probe damp and probe reset buttons on the HCU2 are active.

The probe reset button will pulse the PPOFF PICS line when pressed, but only while the system is in manual mode. The probe damp button will toggle the PDAMP PICS line when pressed, but only while the system is in manual mode. Both the probe reset and probe damp buttons on the HCU2 can be made inactive by use of a switch on the rear panel of the PHC10-3. 

Switch

Description

Position

 

8

Operation of HCU2 probe

UP

Enabled

8

Damping and probe reset

DOWN

Disabled

Probe reset time

The extended probe reset timer on the PHC10-3 PLUS unit is designed to be used where the touch probe fails to remain seated following a head index move. E.g, when using long extension bars.

Switch

Description

Position

 

10

Time permitted for probe to reseat following a head index

UP

Level 2 (extended)

10

Time permitted for probe to reseat following a head index

DOWN

Level 1 (standard)

Interface connection

Switch

Description

Position

 

11

Probe connection

UP

PICS or 7-pin DIN operation: the PHC10-3 PLUS internal inhibit relay disables the interface during a head index

11

Probe connection

DOWN

5-pin DIN operation only: the PHC10-3 internal inhibit relay disables the probe during a head index

Output configuration

The PHC10-3 PLUS can be connected to a probe interface via the PICS connection or via the raw probe connection (7-pin DIN connector).

Switch

Description

Position

 

12

Probe output configuration

UP

PICS

12

Probe output configuration

DOWN

DIN

Probe wire isolation

The probe wires need to be isolated from the machine cable wiring when used with multiwire systems. This is controled by switch 13.

Switch

Description

Position

 

13

For use with machine cable

UP

Machine cable

13

Multiwire option for use with PL172

DOWN

Multiwire

The PHC10-3 PLUS will assert STOP under the following conditions:

Condition

Notes

Overload error

Head has been overloaded when locked causing it to unlock.

Obstruct error

Head has been obsructed when moving to requested position or is unable to lock into it.

Head disconnect

STOP will be asserted for two seconds if head is disconnected.

Power failure

Stop signal will be permanently asserted if mains power is removed from PHC10-3 PLUS.

USB cable disconnected

PICS STOP will be asserted if USB cable is used and removed during operation.

The reaction to assertion of PICS STOP to the system and effect of the signal removal are detailed below:

System state

Reaction

Removal of external STOP

STOP asserted on power up - head locked.

Normal system start up - head will report its position.

Head movement commangs accepted.

System in manual mode - manual movement initiated by HCU2 after STOP asserted.

Single step manual movement only - continuous movement is disabled but head can be moved slowly as a safeguard movement. Head will lock up as normal when movement key is released.

Continuous movement enabled.

System in manual mode - STOP asserted during manual move by HCU2.

Continuous head movement is immediately disabled - head will continue to move in single steps. Head will lock up as normal when movement key is released.

Continuous movement enabled.

System in automatic mode - stop asserted before update command received.

PHC10-3 PLUS will not unlock or index the head.

Normal system operation resumed.

System in automatic mode - stop asserted during a head move.

Power immediately removed from axis motors - motors braked.

Update command will cause the head to complete its move.