Gen 1 Digital High-Resolution Controllers

DHC-300 (117VAC)
800-134H.pdf  Datasheet
800-174B.pdf  Quick Calibration & Troubleshooting Guide
800-192C.pdf  Modbus User's Guide

THESE PRODUCTS ARE NO LONGER AVAILABLE:

• DHC-300 Digital High-Resolution 3-Phase Controller, 117VAC
• DHC-300A Digital High-Resolution 3-Phase Controller, 234VAC
• DHC-300B Digital High-Resolution 3-Phase Controller, 24VAC

Replacing DHC-300 with DHC-301 (refer to Datasheets for complete details)

Gen 2 Digital High-Resolution Controllers

DHC-301 (117VAC)
800-208B.pdf  Datasheet
800-210B.pdf  Quick Calibration & Troubleshooting Guide
800-192C.pdf  Modbus User's Guide

MECHANICAL

The DHC-301 directly mounts in place of a DHC-300.

ELECTRICAL

The connectors that plug into a DHC-300 can plug directly into a DHC-301; rewiring is not required. The DHC-301 also provides a selection for a 2-10V command signal, which is not available on the DHC-300.

FUNCTIONAL

Both units detect various fault conditions. The DHC-300 has a single FAULT indicator that flashes whenever a fault condition has been detected, where the DHC-301 has three FAULT indicators that turn on or flash to indicate the specific fault that has been detected.

When using a 1-5V or 4-20mA command signal, the DHC-300 will treat a signal above 5.5V or 22mA as a “loss of command” and responds by moving the actuator to the selected position set for a “loss of command”. The DHC-301 detects this condition as a “command out of range” fault and responds by turning the actuator motor off. The DHC-301 also detects this condition for 0-5V, 0-10V, and 2-10V signals, where the DHC-300 does not.

Contact Peaktronics Sales for assistance.