Installation and troubleshooting of Renishaw PHC10-3 PLUS controller

Connect the 15 pin D-type socket test socket cable to the PH10 PLUS test socket

The original probe signal of the 7-pin DIN socket is directly connected to the probe interface (when the internal interface is not used)

DC power socket power input connected to the accompanying 24Vdc power adapter

Equipotential connection of equipment grounding point is used for system grounding

Reset button to reset the controller and restart after pressing

Detailed explanation of PICS interface signals (for real-time control)

PICS (Product Interconnection System) is a real-time signal standard defined by Renishaw. The key signals are as follows:

STOP (pin 1): Low level active. When PHC10-3 PLUS detects overload, blockage, disconnection or USB cable removal of the test seat, it will actively lower this signal. The CMM controller can also urgently stop the movement of the measuring seat by lowering the STOP.

POFF (pin 2): Low level active, used to turn off the probe power. POFF has a lower priority than STOP.

PDAMP (pin 7): Low level active, used to reduce the sensitivity of strain gauges (such as SP25M) and suppress false triggering during rapid movement.

LED anode (pin 4): Constant current input, used to light up the LED on the measuring socket.

Probe signal (pin 5) and probe return (pin 9): transmit probe trigger signal (when using non multi wire cables). At this point, the length of the PICS cable must be less than 0.5 meters, otherwise the signal is susceptible to interference.

Comprehensive analysis of configuration switches (DIP switches)

4.1 Communication related (switches 1-6)

Baud rate (switches 1-3):

Baud rate SW1, SW2, SW3

300 DOWN DOWN DOWN

600 UP DOWN DOWN

1200 DOWN UP DOWN

2400 UP UP DOWN

4800 DOWN DOWN UP

9600 UP DOWN UP

19200 DOWN UP UP

Stop position (switch 4): UP=2 stop position, DOWN=1 stop position.

CTS protocol (switch 5): UP=requires CTS signal to send, DOWN=ignores CTS (it is recommended to short circuit CTS and DTR when connecting).

LF protocol (switch 6): UP=append line break after each message, DOWN=do not add.

Note: Switches 4-6 are only valid in the basic command set (switch 9 down). In the extended command set mode, the data format is fixed as: 1 start bit+7 data bits+1 even check+1 stop bit, and CTS is always required.

4.2 Interface and Function Switches (Switches 7-13)

Switch function up (UP) and down (DOWN)

7. PPOFF behavior: PPOFF is valid during the seat index period, only PDAMP is valid during the seat index period

8 HCU2 probe damping/reset button enabled/disabled

9 Command Set Extended Command Set Basic Command Set

10 probe reset time extension (applicable to long extension rods) standard

11 probe connection methods PICS or 7-pin DIN, only 5-pin DIN

12 output configuration PICS DIN

13 probe wire isolation machine cable mode Multiwire mode

Important: When using a multi wire scanning probe (such as SP25M), switch 13 must be set to DOWN, and switches 11 and 12 also need to be set accordingly (usually 11=DOWN, 12=DOWN).

RS232 and USB communication configuration

5.1 Definition of RS232 connector pins (25 pin D-type)

Pin signal description

Shielding layer of shielded cable

2 TxD sent to CMM computer

3 RxD received from CMM computer

4 RTS send request (maintain+12V after initialization)

5 CTS clear sending (from CMM computer); If CMM does not provide this signal, pins 5 and 20 need to be short circuited

7 SG signal ground

20 DTR indicates that PHC10-3 PLUS has been powered on

Wiring suggestion: The simplest three wire connection method is to connect 2-3-7 and short-circuit 4-5-20 on the CMM side (or 5-20 on the controller side). But a more reliable way is to use a full handshake.

5.2 USB Communication Points

The driver program (signed) from the accompanying CD must be installed.

The maximum cable length is 5 meters, which can be extended to 30 meters through cascading USB hubs.

Avoid sharing the same USB root hub with high data bandwidth devices such as cameras and hard drives to prevent communication delays that may cause the test socket response to timeout.

If the USB cable is unplugged during operation, PHC10-3 PLUS will immediately assert the PICS STOP signal, triggering a safe shutdown.

5.3 Differences between Two Command Sets

Basic Command Set (Switch 9 DOWN):

Compatible with existing PHC10-2 communication protocols and software commands.

Adjustable stop position, CTS, LF and other parameters.

Suitable for most traditional CMM control systems.

Extended Command Set (Switch 9 UP):

Fixed protocol (7 data bits, even parity, 1 stop bit).

Support software control of HCU2 and PICS functions (such as probe damping, POFF, LED OFF).

Support advanced functions such as TP200 probe reset.

Introduce product identifiers and device numbers for future multi interface control.

CMM software needs to support extended command sets.

Selection suggestion: Unless you need special features to expand the command set (such as multi interface collaboration), you should usually choose the basic command set for maximum compatibility.

Diagnostic table for front panel LED indicator lights

The front panel of PHC10-3 PLUS provides 10 LEDs to reflect the system status in real-time. The following table is the basis for rapid on-site diagnosis: