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Motorised head and autochange rack controllers

A range of control systems to interface between Renishaw's motorised heads, autochange racks and your CMM.

ACC2-3 autochange rack controller


The ACC2-3 handles the communications to and from the CMM controller, controls the ACR1 autochange rack and multiplexes and interfaces the head and datum probe signals.


44 mm (1U)


440 mm (19 in enclosure)


180 mm


1.8 kg

Data transmission

Serial RS232

Voltage range

90 V - 246 Vac 50 Hz / 60 Hz

HCU2 hand control unit


HCU2 is a portable head drive and position display unit for use with the PHC10-3 and PHC10-3 PLUS motorised head controller. This is invaluable for setting up a component, operator controlled inspection and teach-cycle programming.

It allows an operator to manually change the orientation of the head without the need for sending commands through the CMM controller.

Features include two speed action (jog and rapid move), two axis head display, transmit button for teach cycle, status and error LEDs.

PHC10-3 PLUS head controller


PHC10-3 PLUS head controller receives instructions from the CMM control. The PHC10-3 PLUS controls all head functions and reports system status to the CMM:

  • Drives PH10 PLUS (PH10T PLUS, PH10M PLUS or PH10MQ PLUS) to position - sent either from the HCU2 or CMM
  • Checks and reports position
  • Flags up errors, e.g. failure to reach position, obstruction before or after locking etc.

The PHC10-3 PLUS does not process any of the probe sensor signals. These are railed clean through the heads axes and controller to the probe interface.


180 mm


440 mm


44 mm


1.5 kg

Data transmission

RS232 or USB

Current consumption
(at 240 V)

Less than 1 A

PSU electrical ratings

Supply voltage: 100 V to 240 V ± 10%
Frequency range: 50 Hz to 60 Hz
Power consumption: 49 W max.
Transient voltages: Installation category II

Input connectors

15-way 'D'

Power supply

24 Vdc 49 W provided by the Emerson PSU (DP4024N3M) power adaptor

Probe output connectors

7-pin DIN or 9-way 'D' type

Maximum cable length



50 m

5 m (extendible in lengths of 5 m by use of a hub, to a maximum length of 30 m)

Hand held control unit

HCU2 only

PHC1050 UCC daughtercard


The PHC1050 interface board is one of a range of plug-in daughtercards for Renishaw UCC universal CMM controllers. It provides a simple interface between the legacy PH10 probe head and the metrology application software using no external hardware and with minimal cabling and connectors.

Extended warranty

For peace of mind a 3-year warranty is available for your new CMM products during the first 3 months from purchase. Contact your vendor.