GE DS200DCFBG1B DC Feedback Power Supply Board

GE DS200DCFBG1B DC Feedback Power Supply Board

Functional Description

The DS200DCFBG1B Power Supply Board (DCFB) receives 38 and 115 V ac (24 V dc) input power from the

control power transformer (CPT), and provides control-level power to the drive and 115 V ac power (NA) to

the enclosure fans. The DCFB board includes the following circuits:

• Control-level power supplies (+5, ±15, and ±24 V dc)

• Motor field power circuits (except the SCR module)

• Driver circuits for the motor field SCR gate pulse generators

• Circuits to monitor numerous ac line and dc motor signals, including:

− Armature current(s) and voltage(s) (NA)

− Motor field currents (NA)

− Ac line current

− Ac line voltage magnitude and phase sequence

Technical Specifications