Precision Control Systems 930 - Manual (Page 5)

Model 930 ControlIR TM Instruction Manual Introduction
Research, Inc. Page 1 of 25
GENERAL
DESCRIPTION
Figure 1-1
Model 930
Three Phase Power
Controller
STANDARD
FEATURES
Introduction
The Model 930 power control system is a complete power ‘solution’ featuring a
number of elements integrated into a single, ready-to-install package. The Model 930
is a three-phase power control system available in two configurations of 120 and 160
Amps at 480 Volts. 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 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 disconnect 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 turns off the heater contactor.
• Heater open interlock contacts. A heater open condition 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, and SCR fault
condition.