Emerson 185 Generator Starting Contacts, Automatic Generator Exerciser, Clock Battery, Settings

CONTROLLER (continued) Series 185

3 --- Generator Starting Contacts

The generator starting contacts connections are on the controller. Refer to the generator manual. Disconnect the generator battery and verify that the ignition switch is in the OFF position. Connect the generator starting wires to the appropriate terminals on terminal block TB7 as shown on the wiring diagram. For wiring convenience terminal block TB7 has a removable plug. See Figure 4 and Table A.

1 2 3 4 5 6 7 8 9

TB7

removable

terminal block

TB7–4, TB7–5, TB7–6

Figure 4. TB7 generator starting contact terminals.

5 --- Automatic Generator Exerciser

The built–in automatic generator exerciser can be set to exercise the generator for 20 minutes once every week.

Clock Battery

Be sure a fresh battery is installed and turned on. It will maintain the exerciser clock for about 24 hours in case of a power outage.

Recommended 9 volt alkaline batteries are (see Figure 5): Duracell MN 1404, Everready 522, Panasonic 6AM6

Turn on battery by putting S2 DIP switch actuator 10 in the on position (up). See Table B and Figure 6.

Exercise with or without Load

The generator should be exercised under load or follow the recommendations of the generator manufacturer. Be sure the exerciser is turned on. Then select either exercise with or without load. The ATS will transfer the load to the generator when the exercise with load is selected. See Figure 6 and Table B.

Table A. Generator Start Connections

When the Utility fails	Terminals on Controller
contact closes	TB7–4 and TB7–5
contact opens	TB7–5 and TB7–6

4 --- Settings

The time delay and sensor setting in the Group 4 controller are accessible on the inside. Refer to Tables B and C and to Figures 6 and 7. Use a ball–point pen or other pointed tool to slide the DIP switch actuators up or down to match setting shown.

All power must be off before making any changes.

The factory default settings are shown in Table G on page 5.

Table B. Generator Exercise Settings

Function	Factory	DIP	DIP	Actuator
	Setting	Switch	Actuator	Position
clock	off	S2	10	on (up)
battery				off (down)
exerciser	off	S1	7	on (up)
				off (down)
with load or	without	S1	8	with (up)
without load	load			without (down)

To Set Exerciser

Press and hold (5 seconds) the Set Engine Exerciser button. The exercise period occurs immediately and at approximately the same time weekly thereafter. The status light below the button blinks during the exercise period (including the cooldown). The light stays on to indicate that the exerciser has been set. If the light is off, the exerciser has not been set.

cover must be removed to replace 9V battery (use alkaline type)

screw

To Cancel an Active Exercise Period

Press the Bypass Time Delay button to stop an exercising generator. If exercise with load is set, the ATS retransfers the load to the utility, then stops the generator after cooldown.

Figure 5. Battery replacement.

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