8
Owner’s Manual for MGG450
General Information
At temperatures below 40 °F (4 °C) engage all starting
aids for at least 30 minutes or until coolant temperature
reaches a minimum of 40 °F (4 °C) before starting the
unit. Disengage starting aids before starting the unit.
Control Panel
IMPORTANT NOTE: Replace fuse only with the same
recommended type and rating.
See
for control panel component locations
and descriptions.
001433
C
B
D
A
E
F
G
H
I
Figure 2-4. Control Box
A Varistep3:
Controls mixer stepper motor.
B Fuses:
Protect the control panel wiring and
components from damaging overload.
C NT-converter module:
Controls analog load
sharing.
D Relays:
Open and close electrical circuits.
E
IO8/8:
Offers binary inputs and outputs for the
controller.
F
DetCon:
Protects engine from damage caused by
knocking combustion.
G ECON-4:
Controls engine speed.
H AIN8:
Analog input device.
I
AIO-NTC-BB (located behind panel):
Main
controller.
Fuel Selection Screen
The fuel selection screen is the second metering screen
and allows the user to select the generator fuel type.
shows NG has been selected by the operator.
NOTE:
It is the customer’s responsibility to select the
proper operating fuel using the site certification/gas anal-
ysis data.
A
B
C
E
F
G
H
I
J
K
D
L
M
001435
Figure 2-5. Fuel Selection Screen
A
Indicates commercial natural gas fuel operation has
been selected.
B
Indicates low energy (lower heating value or BTU/
ft
3
) non-commercial fuel has been selected.
C
Indicates high energy (higher heating value or BTU/
ft
3
) non-commercial fuel has been selected.
D
Indicates LPG-Vapor fuel operation has been
selected
E
Indicates gaseous fuel supply pressure is low.
F
Indicates unit is currently operating on a gaseous
fuel source.
G
User specified selection of commercial NG fuel.
H
User specified selection of low-energy (lower
heating value or BTU/ft
3
) non-commercial fuel.
I
User specified selection of high-energy (higher
heating value or BTU/ft
3
) non-commercial fuel.
J
User specified selection of HD-5 grade LPG-vapor
fuel.
K
Soft key (button below screen) user specified
selection of liquid-LPG fuel.
L
Indicates the fuel selection mode. Grey indicates
unit is not in auto (will not automatically switch to
LPL if there is a loss of NG pressure), yellow
indicates unit is in auto, green indicates unit is in
auto and running on the specified fuel (gaseous or
liquid).
M
Indicates the unit is currently operating on a liquid-
LPG fuel source.
Содержание MGG450
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Страница 48: ...44 Owner s Manual for Generator Wiring Diagrams and Service Log DC Controls Page 2 of 6 ...
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Страница 53: ...Owner s Manual for Generator 49 Wiring Diagrams and Service Log Relay Connections ...
Страница 54: ...50 Owner s Manual for Generator Wiring Diagrams and Service Log AC Connections ...
Страница 55: ...Owner s Manual for Generator 51 Wiring Diagrams and Service Log Control Panel Layout ...
Страница 56: ...52 Owner s Manual for Generator Wiring Diagrams and Service Log Control Faceplate ...
Страница 57: ...Owner s Manual for Generator 53 Wiring Diagrams and Service Log CAN Wiring ...
Страница 58: ...54 Owner s Manual for Generator Wiring Diagrams and Service Log Receptacle ...