Table 2-1. Control Panel, Controls and Indicators (continued)

TM 55-1730-229-12

TO 35C2-3-473-1

Table 2-1.

Control Panel, Controls and Indicators (continued)

Control or

Indicator

Description

Function

AC POWER switch

Three-position

RESET position Resets GCU as

(S10)(cont.)

(ON/OFF/RESET) switch

fault logic circuit

(extinguishes as red warning

indicator lights).

AC POWER

Green indicator light

Illuminated when ac contactor is

indicator (DS20)

closed.

AC PHASE SELECT

Three-position

Connect selected phase to AC

switch (S9)

(A/B/C) rotary switch

VOLTS, AC % LOAD, and AC HERTZ

meters.

Indicates voltage of selected

AC VOLTS meter

0 to 150 volts scale.

phase.

(M8)

Green band at 108-118

volts.

OVER VOLTAGE

Red warning indicator

Illuminates when GCU opens ac

indicator (DS14)

light.

contactor because of over

voltage.

Change 8

2-6.1/(2-6.2 blank)