Generac Power Systems R-200A technical manual Manual Start, Low Battery Red Led Indicator, Danger

General Information

R-panel Technical Manual

DANGER

With the switch set to AUTO, the engine can crank and start suddenly without warning. Such automatic start up normally occurs when utility source voltage drops below a pre-set level. To prevent possible injury that might be caused by such sudden starts, set the AUTO/ OFF/MANUAL switch to OFF and remove the NEGATIVE battery cable from the battery before working on or around the unit. Then, place a “DO NOT OPER- ATE” tag on the control console.

MANUAL START

Allows the user to start and run the generator manu- ally. Transfer of the load to the generator will occur if the utility is lost while the engine is running in the manual mode.

LOW BATTERY (RED LED INDICATOR)

The R-200A controller continually monitors the bat- tery voltage and turns on the low battery LED if the battery voltage falls below approximately 12.2VDC for one minute. A low battery voltage is a non-latch- ing alarm and will not shut down the engine, however, it is a possible indication of a potential issue with the battery or battery charger and should be inves- tigated.

The low battery LED will automatically turn off if the battery voltage rises above approximately 12.5VDC. If the engine is running when the low battery condi- tion occurs, the engine will continue to run as long as possible.

If the battery voltage drops below 6V at any time dur- ing cranking, the crank cycle will be terminated and the low battery LED will remain lit. This is a latched fault and will shut down the engine.

SYSTEM READY (GREEN LED

INDICATOR)

Is a positive status indicator and dependent upon the following conditions being true:

1.Switch in the AUTO position.

2.No other warning indicator present.

3.Controller is functional.

The System Ready LED will also indicate if utility voltage is present at the control board. The system ready LED will flash every second (at a 0.5 second ON and a 0.5 second OFF rate) when utility voltage is not present at the control board when the switch is in either the AUTO or MANUAL position. This function is ONLY available with DIP Switch Position 2 in the OFF position (ATS application).

The system ready LED will also indicate if the genera- tor is in the GTS Mode (i.e. DIP Switch Position 2 in the ON Position). The system ready LED will flash at a five (5) seconds ON and one (1) second OFF rate in GTS Mode.

LOW FUEL PRESSURE (YELLOW LED INDICATOR)

The yellow low fuel pressure LED will turn ON if the fuel supply pressure drops below approximately five

(5)inches water column (i.e. occurs when the low fuel pressure sensing switch on the fuel regulator opens). This is a non-latched fault (visual LED warning only) and does not trigger the controller alarm output. Low fuel pressure sensing is active in all generator operat- ing modes (i.e. MANUAL, OFF and AUTO).

LOW OIL PRESSURE (RED LED

INDICATOR)

Occurs if the oil pressure switch closes while the engine is running after the 10 second hold off timer expires. This is a latched fault and will shutdown the engine.

HIGH COOLANT TEMP (RED LED INDICATOR)

Occurs if the high coolant temp switch closes. Checks are made after the 10 second hold off timer expires. This is a latched fault and will shutdown the engine.

LOW COOLANT LEVEL (FLASHING RED HIGH COOLANT TEMP LED INDICATOR)

Occurs if the coolant level is low. Checks are made after the 10 second hold off timer expires. This is a latched fault and will shutdown the engine.

OVERSPEED (RED LED INDICATOR)

An overspeed shutdown will occur if the engine speed is greater than 4300 rpm for a 3600 rpm engine; 2160 rpm for an 1800 rpm engine; 2250 rpm for an 1800 rpm engine, for three (3) seconds. An overspeed condition will shutdown the engine and activate the over speed LED. An immediate overspeed shutdown will occur if the engine speed is greater than 4500 rpm for a 3600 rpm engine.

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