Winco MDS65 - Manual (Page 6)

Page 4
b. Coolant temperature monitor gauge (CTG) - The
coolant temperature gauge indicates engine coolant
temperature. The gauge serves a dual function. In
addition to displaying the water temperature it also
provides the shutdown signal to the engine control
module if the water temperature gets too high. The
shutdown signal is preset to operate at 225 f (407 k)
c. Battery Voltage Meter - This DC voltmeter
monitors the VOLTAGE of the battery under static (at
rest) conditions, and under cranking and charging
conditions. The voltmeter indicates not only the condition
of the charging system, but also indicates the battery
reserve under cranking load in cold weather.
d. Running Time Meter - This DC meter records the
total hours the engine has run.
5. AC Generator Controls
a. Voltage adjust rheostat - Controls the output
voltage of the generator by varying voltage regulators
reference voltage.
b. Field circuit breaker (FCB) - Protects voltage
regulator and exciter field in the event of a load short
circuit or equipment malfunction.
c. Voltage selector power switch - This heavy duty
three position switch allows the operator to quickly and
safely reconnect the 12 lead generator to any one of
three output voltages. Once the output voltage is se-
lected, the switch may be locked to prevent it from
accidentally being changed during operation. Three
output voltage combinations are available with this
selector switch:
1. 120/240 Three Phase* (series Delta
configuration)
2. 120/208 Three Phase (Low or Parallel “WYE”
configuration)
3. 277/480 Three Phase (High or series “WYE”
configuration)
*This selector position is also used for single phase 120/
240 output by using only the L1 and L2 leads. The three
phase L3 output lead is the “wild” leg in the delta configu-
ration.
6. AC Generator Instruments
a. VM/AM Selector Switch - This selector switch
allows you to check the amperage being drawn from
each generator leg and your line to line voltage.
b. AC Voltmeter (VM) - Monitors generator output
line to line voltage, for all voltage operations.
c. AC Ammeter (AM) - Monitors the amperage that
is being drawn from each leg of the generator.
d. AC Frequency Meter - Monitors the generator
frequency.
7. Warning Light Cluster - This light cluster contains
the indicator lamps for the four engine shutdowns con-
trolled by the engine control module. The lamps will stay
lit after a shutdown until the selector switch has been
moved to the off position. All the shutdowns are reset
when the selector switch is turned off or the DC circuit
breaker is turned off.
a. Low Oil Pressure Lamp (LOP) - Indicates that
the unit did not maintain a minimum oil pressure of 15
psi.
b. High Water Temperature Lamp (HWT) - Indi-
cates the coolant temperature in the engine exceeded
upper coolant temperature limits.
c. Overspeed Lamp (OS) - Indicates the engine
speed exceeded the allowable speed limit while operat-
ing. An OS light may also indicate that the ECM has lost
its frequency sensing signal (from the engine alternator)
during the last run period.
d. Overcrank Lamp (OC) - Indicates the engine
tried to start and went through five (5) twelve (12) second
crank cycles without starting. Before attempting to
restart the unit, first investigate why it didn’t start.
8. Lamp Test Switch - The lights can be tested by
pressing the lamp test switch. When depressed all four
lights will come on. As soon as the switch is released the
light will go out.
9. Panel Light - A panel light is provided for your
convenience. It is activated by the panel light switch.
B. RECEPTACLES and CIRCUIT
BREAKERS
1. 120 Volt 20 Amp Ground Fault Interputer Duplex.
This duplex receptacle is protected by a 20 Amp circuit
breaker mounted just above the duplex. With the “T” slot
design both 15 and 20 amp 120 volt cords can be
plugged in.
2. 120 Volt 20 Amp 3 wire twist lock, NEMA Spec L5-
20. This twistlock receptacle is also protected by a 20
Amp circuit breaker. This receptacle is wired in series
with the GFCI receptacle which provides it with GFCI
protection.
3. 240 Volt 20 Amp 3 wire twist lock, NEMA Spec L6-
20. This twistlock receptacle is protected by a two pole
240 volt circuit breaker.
4. 120/240 Volt 50 Amp 4 wire twistlock. This recep-
tacle is rated for dual voltage, 120 or 240 volt use. It is a