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MCU installation

Part numbers

There are several MCU joysticks available:

  • A-5331-0015 - MCUlite-2 kit
  • A-5734-0100 - MCU5-2 kit
  • A-5121-0400 - MCU W-2 kit (includes batteries)

Grey button version

  • A-6078-0258 - MCUlite-2
  • A-5734-0900 - MCU5-2
  • A-5734-1400 - MCU W-2 (does not include batteries *)


  • A-5331-0020 - HT20
  • A-5735-0400 - HT500
  • A-5734-1300 - HT500RC (does not include batteries *)

* NOTE: These kits do not include batteries. When placing an order, please remember to include the MCU W battery kit (Renishaw part number A-5381-0095).

Each of these kits are provided with a 5 m flexible joystick cable. Replacement cables are available from your machine supplier or directly from Renishaw.

  • A-1016-8098 - 5 m cable

Connecting the MCU to the UCC system

The MCU joystick kits include a 5 m flexible cable provided as standard. The cable is fitted from 9-pin D connector on the rear of MCU to a 9-pin D connector on the rear of the SPA3-2.

Connecting to the SPA3-2

Connecting MCU to SPA3-2

The emergency stop button on the MCU5-2 or MCU W-2 has a dedicated circuit that is fed directly into the rear of the SPA3-2 servo power amplifier or UCC controller.