Here is an expanded introduction in English based on the provided content:

The Omron CQM1-CPU21-E is an AC power supply module designed for use with the CQM1 series programmable logic controllers (PLCs). It accepts a wide range of AC input voltages, from 100 to 240 VAC at 50 or 60 Hz, with an operational voltage range of 85 to 265 VAC, ensuring stable performance under varying mains conditions. The module provides two DC output channels: a 5 VDC output with a capacity of 6 A, and a 24 VDC output with a capacity of 0.5 A. The 24 VDC output is specifically configured for power supply purposes, delivering up to 0.5 A.

When selecting a power supply unit for the system, detailed guidance is provided in the CQM1H operation manual. The AC power supply requires an input of 100–240 VAC, and both the CQM1 and CQM1H models offer a 24 VDC output. It is important to note that the left end cover of the CQM1H unit is an integral part of the power supply module, contributing to the overall structure and safety of the system.