UNITROL Phase Shift FOR SALE from Weld Systems Integrators, Inc.

#9190 – PSS Series Heat Control Board

This Phase Shift Control board fills the need for a simple solid-state system to control any size SCR contactor. It is typically used for resistance welder transformer control, but can also be used for pure resistive loads. The control uses RC timing to allow settings from 10% to 99%. A manual power factor adjustment potentiometer is provided to match the control to the inductive load.

A single-turn potentiometer is provided for heat adjustment. This potentiometer can be located either on a remote cable, the front of the control board, or on the back. These mounting options allow for use in any application.

INPUT LINE VOLTAGE: 115V – 575V, field selectable, 60/50Hz (specify frequency when ordering) SIZE: 4-3/4” x 6-1/2” x 1-1/4”

UNITROL Phase Shift System Features

Supplied with remote or board-mounted heat setting potentiometer and knob as specified by model number below

• Mounting for use on control panel or back of cabinet door
• Double pulse transformer output circuitry for high gate current
• Socket mounted integrated circuit chips
• Regulated built-in power supply
• Double line voltage fuses in board-mounted insulated holders
• LED indicators for Power, Initiation, and SCR firing signal
• Mounting standoff fittings supplied

Welding Controls  |  UNITROL from Weld Systems Integrators

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