Voltage Regulator Adjustment

General Information

R-panel Technical Manual

Figure 5 - Connection Diagram (GTS Mode)

FROM UTILITY

							MAIN LINE
							MAIN LINE
							CIRCUIT
							BREAKER
							BREAKER
							OR FUSE

N1 N2 (N3)							T1
							T1
							T2
							T2
W-TYPE							(T3)



TRANSFER
SWITCH

178 183

E1 E2 (E3)

TO LOAD

FEEDER CIRCUITS

LOAD

DISTRIBUTION

PANEL

GENERATOR

CHARGER

120 VAC

LINE

NEU

GND

194

178

183 N2 N1

E1 E2 (E3)

Route the 2-wire start control wires through suit- able, approved conduit which is separate from the AC power leads. Connection of wire 178 to wire 183 by relay contact closure action (volt free switch con- tacts) in the transfer switch must result in generator engine cranking and startup (see Figure 5).

Do NOT connect battery voltage, utility voltage (N1/N2) or load voltage (T1/T2) to either the 178 or the 183 2-wire start terminals as this will damage the generator control board.

In order for the generator battery charger function to work, it is necessary to provide a 120Vac util- ity source connection to the generator wiring panel LINE, NEUTRAL and GND terminals (see Figure 5).

When in GTS mode, the control board will respond as follows based on the AUTO/OFF/MANUAL switch position.

OFF: The generator will not start and run in this position. Only the System Ready LED and the Low Battery LED are active in the GTS OFF mode.

MANUAL: The control board will start and run the generator whenever the switch is in the manual posi- tion.

AUTO: The control board will monitor the 2-wire start circuit. When the 2-wire start wire 178 is con- nected to 2-wire start wire 183, via a relay contact closure in the W-type transfer switch, the control board will start and run the generator. When the 2-wire start wire connection is opened the control board will stop the generator.

When the control board is in AUTO, MANUAL or OFF (GTS mode) the GREEN System Ready LED will flash (five (5) seconds ON, one (1) second OFF) to indi- cate that the transfer switch is performing the utility monitoring and transfer functions.

Although adjustment potentiometers are provided on the voltage regulator installed in the control panel, the voltage regulator potentiometers have been set at the factory and should NOT be re-adjusted.