Hardware reference guide

DIO
228
35013379 11/2011
140CRA21X10 Quantum Distributed I/O (DIO) Modules
Overview
This section includes specifications and wiring diagrams for the Modbus Plus
Distributed I/O AC powered single (CRA21110) and dual (CRA21210) channel
modules.
DIO Module
The following figure shows the parts of the distributed I/O (DIO) module.
Specifications
The following specifications are for the Modbus Plus CRA21110 and CRA21210 AC
powered single and dual channel DIO modules.
Specifications
Input Requirements
Input Voltage 85 ... 276 Vac
Input Frequency 47 ... 63 Hz
Input Voltage Total Harmonic
Distortion
Less than 10% of the fundamental rms value