Precision-control-systems 915 Bedienungsanleitung PDF herunterladen (Seite 4)

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Introduction

General Description

The Model 915 power control system is a complete power control “solution” featuring a number

of elements integrated into a single, ready-to-install package. The Model 915 is a single-phase

power control system available in a variety of configurations from 120 to 480 volts and rated at

20-, 40-, or 70-amps. These systems are ideally

suited for many industrial power control

applications and have been specifically

optimized for use with Research Inc. infrared

heating systems.

Standard Features

Standard features include:

• Local 10 turn potentiometer with digital dial for precise manual control of load voltage.

• Remote control capability with a 0-5 VDC or 0-20 mA signal.

• Heater power switch with remote interlocks. The load voltage may be enabled or

disabled without turning off the main discount switch.

• Heater ON/OFF switch controls an AC contactor to remove power from the SCR

controller and the load.

• Cooling power switch to control air or water cooling flow.

• Cooling flow interlock contacts. Low cooling flow turns off the heater contactor.

• Heater over temperature contacts. Heater over temperature condition turns off the

heater contactor.

• Indicators lights for heater on, cooling on, heater over temperature, optional

temperature controller alarm and lamp-out alarm.

• Fail safe operation of the heater contactor. The contactor will not automatically re-

energize after a power failure, or an alarm condition that shuts down the heater.

• Programmable Logic Controller for operating and alarm logic control.

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Precision-control-systems 915 Bedienungsanleitung Seite 4