Note: Position the current transformers with the dot or HI side CT marking toward the generator set.

Note: Only generator sets equipped with AC meter controllers and/or safeguard circuit breakers require CTs.

5.If the controller has meters, remove the controller cover and reposition the meter scale lamp jumper (see Figure 8-6) matching the position of the desired voltage (shown in Figure 8-5).

1

TP-5353-6

1. Lamp Jumper

Figure 8-6 Meter Scale Lamp Jumper

6. The overvoltage shutdown is standard on

Decision-Makert 3+ controllers. The 139/240-volt (low wye) and 277/480-volt (high wye), 3-phase, 4-wire, 60 Hz configurations use different overvoltage shutdown settings than all other configurations. Recalibrate the overvoltage shutdown if the reconnection changes the voltage to or from one of these configurations. See Section 8.3, Decision-Maker 3+ Controller, Overvoltage Shutdown Adjustment. Do not recalibrate the overvoltage adjustment for other voltage changes.

7.If the controller has meters, set the phase selector switch to the L1-L2 position (1-phase or 3-phase configuration depending on generator set connection). Connect a voltmeter across leads L1 and L2 if the controller has no meters.

Note: Equipment damage. Verify that the voltage ratings of the transfer switch, line circuit breakers, and other accessories match the desired line voltage.

8.Reconnect the starting battery, negative (--) lead last. Place the generator set master switch in the RUN position to start the generator set. Observe the voltmeter and verify that the unit has the desired line voltage connection.

Adjust the voltage using the voltage adjustment potentiometer on the generator controller front panel. See Figure 8-7.

9.Stop the generator set after completing the voltage adjustment.

10.Disconnect the external voltmeter if used. Replace the controller cover.

 

 

 

 

 

 

UPPER METER SCALES

 

 

 

 

 

 

1

OFF

3

 

 

 

 

 

 

 

 

 

 

L3

 

 

 

 

 

 

L0--L1

 

 

L3--L1

HERTZ

 

A--C VOLTS

A--C AMPERES

 

L2

 

 

L1

 

 

L1--L2

 

 

L1--L2

 

 

 

 

 

 

L1

AMPS

 

L2

 

 

 

 

 

 

L1--L2

 

L2--L3

 

 

 

 

 

 

 

VOLTS

 

 

 

 

 

 

 

 

LOWER METER SCALES

VOLTAGE

 

S

PREALARM

 

 

 

 

 

 

EMERGENCY

HIGH ENGINE

AUXILIARY

 

AUXILIARY

 

HIGH ENGINE

 

0 0 0 0 0

STOP

O

TEMPERATURE

TEMPERATURE

FAULT

 

PREALARM

TOTAL HOURS

ONLY

 

PREALARM

LOW OIL

 

BATTERY

 

AIR

ADJUST

 

LOW OIL

 

 

 

 

 

PRESSURE

PRESSURE

CHARGER FAULT

DAMPER

 

 

 

LOW WATER

EMERGENCY

LOW BATTERY

SYSTEM

 

 

 

TEMPERATURE

STOP

 

VOLTAGE

 

READY

 

 

 

 

 

 

 

 

GENERATOR

 

 

 

LOW FUEL

OVERSPEED

OVERCRANK

 

SWITCH

 

 

 

 

 

 

 

 

NOT IN AUTO

 

 

BATTERY

 

RUN

OFF/RESET

AUTO

SILENCE

NORMAL

OIL

WATER

 

 

 

 

 

 

ALARM

PRESS

TEMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAMP

TEST

 

 

 

1

 

 

 

 

ADV-5849A-

 

 

 

 

 

 

 

 

 

1. Output voltage adjustment potentiometer

 

 

 

 

Figure 8-7 Voltage Adjustment

This is bpid

8.3Decision-Maker 3+ Controller, Overvoltage Shutdown Adjustment

Disconnecting the electrical load. Hazardous voltage can cause severe injury or death. Disconnect the generator set from the load by opening the line circuit breaker or by disconnecting the generator set output leads from the transfer switch and heavily taping the ends of the leads. High voltage transferred to the load during testing may cause personal injury and equipment damage. Do not use the safeguard circuit breaker in place of the line circuit breaker. The safeguard circuit breaker does not disconnect the generator set from the load.

TP-6069 6/03

Section 8 Reconnection/Adjustments 69

Page 79
Image 79
Kohler 125EFOZ/150EOZ, 8.5EFOZ, 9EFOZ/10EOZ, 80EFOZ/99EOZ, 6.5EFOZ/8EOZ, 4EFOZ/5EOZ, 40EFOZ/50EOZ manual Voltage Adjustment