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Operation
MAIN TRANSFER SWITCH - (PM-SC OR PM-IC)
The MPS requires a PowerManager™ transfer switch for proper
operation. (For additional information, see the appropriate
PowerManager™ manual). The transfer switch, as well as the
generator and other standby components, must be properly
located and mounted in strict compliance with applicable codes,
standards and regulations.
Remove fuses from the battery charger
before connecting starting batteries.
Connect battery, then replace charger fuses.
CONTROL CONSOLE COMPONENTS
The PM-GC control module performs all of the generator control
functions within the system. The PM-PC control module performs
all of the generator control functions within the MPS system. It
controls engine starting and stopping, engine speed, output volt-
age and frequency, monitors engine performance, and decides
when to operate the contactor. It can communicate with remote
devices via communication ports. See Figure 1 for a view of the
operator panel.
The operator panel of the unit acts as the interface to the user. By
means of an optional LED backlit TFT LCD touchscreen display, the
user can examine data monitored by the unit. The keyswitch can
be used to start and stop the genset. The keyswitch allows the unit
to be put into one of three modes.
OFF
In this mode, the generator will not start.
MANUAL
In manual mode, the generator will start immediately without altering
the state of the contactor. If utility power fails while in manual mode,
the contactor will not close. This prevents deadbus/sync check
problems. Manual mode is for limited testing of the unit.
AUTOMATIC
In automatic mode, as the name suggests, the generator will start
automatically from the PowerManager™ or ATS's signals.
Automatic is the normal mode of operation.
REFER TO THE "PM-PC OPERATIONS FLOWCHART" for details
about what the panel will do when power from the utility supply
fails in each of the above keyswitch positions.
6
Figure 1 — Control Module
THE OPTIONAL DISPLAY
The optional, programmable, remote display can be mounted up to
1000 meters away from the generator. Only one display per gen-
erator is allowed. The display has an IP65 front panel with an IP20
rating for the rest of the housing. This means that the rear of the
panel must be protected if it is to be used outside. Normally, it
would be mounted to the face of a sealed enclosure with the sup-
plied screw type clamps. The panel thickness should be <=6mm
and the mounting torque should be <=0.5Nm. The angle of incli-
nation must be less than 35 degrees from vertical.
Connections to the unit can be made via a screened multicore
cable with a 9-way D-type male connector and a separate power
connector (supplied).
The display is independently programmable and could be custom-
ized to display different data from the same product without alter-
ing the PM-PC/GC software.
CONNECTION DETAILS
DISPLAY PIN
CONNECTION
1
2
3
4
5
6
7
8
9
TERMINAL
CONNECTION
+24VDC
OV
W
CONTROLLER PIN
RS-485-
J1 - 21
-
-
-
-
-
-
GROUND
J1 - 11
RS-485+
J1 - 20
-
-
-
-
-
-
WIRE
24VDC
220C
OVDC
0
GROUND
0
- Quick Links:
- Field Wiring
- Alarms and Warnings
- Genlink
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