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Tech Service is available Monday - Friday (8:30am - 7:30pm EST)
INSTALL AUX. 1 LAMP
The Max Charge MC-620 regulator’s Aux. #1 (#16) terminal provides the ability to use a visual indicator when the regulator is
operating under the following conditions: Full field (the alternator is working at full power) and Small Engine Mode (the regulator
is being controlled at 50% field output). When a described condition is detected,
the regulator sends the Aux. #1 terminal from neutral to ground. To utilize the
Aux. #1 Lamp function:
1.
Connect a small LED or incandescent lamp (maximum current flow is 500
mA) to a positive voltage source.
2.
Connect the negative terminal on the lamp to the Aux. #1 terminal on the
regulator.
INSTALL DASH LAMP
The Max Charge Dash Lamp (#17) terminal provides the ability to activate a visual or audible indicator when the regulator
monitors the following conditions: Low system voltage, high system voltage, high alternator temperature, high battery
temperature (temperature conditions are only indicated when appropriate temperature sensors are connected) and no voltage
on stator, indicating that the alternator has failed. When a described condition is detected, the regulator sends the Dash Lamp
terminal from neutral to ground. To utilize the Dash Lamp function:
1.
Connect a small LED or incandescent lamp, or an audible (piezo) alert (maximum current flow is 500 mA) to a positive
voltage source.
2.
Connect the negative terminal on the lamp or audible alert to the Dash Lamp terminal on the regulator.
3.
When connected, the lamp should flash at regulator start-up to indicate active status.
INITIAL PRE-FLIGHT TEST AND START-UP
When the regulator is properly mounted and the regulator wiring is installed, the MC-620 is ready for pre-flight testing. Before
turning on the engine, it’s advisable to check voltages at the following terminal connections to ensure that the wiring is correct.
Test #1 verifies proper voltage values with the regulator turned off. Test #2 verifies the expected voltages with the regulator
turned on.
Note: If the regulator’s BROWN ignition wire is receiving
it’s switched source of voltage from an oil pressure
switch, it may be necessary to start the engine before
applying test #2. If the engine must be run to accomplish
test #2, be sure that the alternator is properly cabled
on both positive and negative sides to the battery being
charged. Failure to do so could result in damage to the regulator and alternator.
Using your hand-held multi-meter, test the following wiring terminals for voltage:
TEST #1: Engine/Ignition OFF
•
Primary RED Power Wire (Terminal #2) >12V
•
Positive Voltage Sense Wire (Terminal #9) >48V
•
BROWN Ignition Wire (Terminal #3) 0V
•
Primary BLUE Field Wire (Terminal #4) 0V
TEST #2: Engine not Running/Ignition ON (Wait 2 minutes)
•
Primary RED Power Wire (Terminal #2) >12V
•
Positive Voltage Sense Wire (Terminal #9) >48V
•
BROWN Ignition Wire (Terminal #3) >12V
•
Primary BLUE Field Wire (Terminal #4) within 2V of 12V starter battery’s voltage
To Aux 1
or Dash Lamp
To B
Lamp Connections
o
o
360-435
-6100
360-435
-3210
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lmar.ne
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