Product Description

D4-454 is a VAC I/O module developed by Automation Direct, Facts Engineering, and Koyo. A member of the DirectLogic 405 series, this module is designed to interface with DL405 programmable logic controllers. This module can also communicate with a number of other modules and peripheral devices.

Power terminal connections under the front covers of the CPU Unit D4-454 are as follows:

• Run Relay
• 24VDC Auxiliary Power
• Logic Ground
• Chassis Ground
• AC Power
• 120/240 Voltage Select

The D4-454 CPUs have an LED indicator that flashes when the battery voltage is low. The typical battery life under the proper conditions is 5 years.

Operators generally use DirectSOFT software. This can be found on the manufacturer's website and can be installed on a personal computer, to program and monitor the PLC. Three ports on the D4-454 can be used to connect the necessary cables.

More information on Installation, troubleshooting, resetting this unit back to factory default settings, and much more can be found in the manuals posted on our site.