Hardware reference guide

Modicon Quantum Overview
35013379 02 October 2007 19
Quantum Power Supplies
Overview Quantum power supplies are used to supply system power to all modules inserted
into the backplane, including:
z Quantum CPU modules
z Quantum Interface modules
z Quantum I/O modules
Depending upon the system configuration, the option exists of using the power
supply in three different modes.
Power Supply
Modes
The following table shows the power supply modes.
Power Supply Type Usage
Standalone For 3 A, 8 A or 11 A configurations that do not require fault
tolerant or redundant capabilities.
Standalone Summable For configurations consuming more than the rated current of one
supply, two summing power supplies can be installed in the
same backplane.
Redundant For configurations requiring power for uninterrupted system
operation. Two redundant power supplies are required for
redundancy.
System Safety
CAUTION
Exercise caution when considering a combination of power supplies in a backplane.
Use only like power supplies with the exceptions noted in System Design
Considerations for Quantum Power Supplies, p. 786.
Failure to follow these instructions can result in injury or equipment damage.
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com