4. CT24 MCU Overview
Portable Remote Control (PRC) systems offer the safety and dependability required for industrial control
applications, including those with reversing motor control such as overhead cranes, conveyors, etc. The MCU
described in this manual incorporates high-performance microprocessors and an advanced design that is
compliant with all standard global requirements.
This MCU can be operated with one or more operator control units (OCUs). Basically, in its most simple form, the
OCU is a radio transmitter and the MCU is a radio receiver. A radio frequency (RF) receiver, decoder and relay
interface contained in the MCU is under the direct control of the operator with the OCU.
The CT24 MCU is supplied in three different size enclosures: the smaller CT24-9, the medium CT24-17 and the
larger CT24-32 (some variations exist for each with fewer relays).
The standard MCU operates from a 110–240 VAC input supply and is shown below:
Figure 1: Typical CT24 MCU Component Layout (CT24-17 shown here)
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