Generac Mobile MGG450, Руководство пользователя

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20 Owner’s Manual for MGG450
Operation
Paralleling Startup
Up to 32 MGG450s of the same rated voltage and
frequency can be operated in parallel without extra
equipment for extended quantity paralleling. The total
electrical load (real, kW, and reactive, kVAr) will be
divided equally among all gensets connected.
IMPORTANT NOTE: Verify all setup procedures have
been performed prior to following the steps below.
Refer to “Optimizing PID loop procedure”.
Parallel MGG450 to Another MGG Genset
1.
Attach a CAN or analog cable between each
genset 216, 217 and 218 terminal, located next to
the load cable connection box.
NOTE: ComAp to ComAp requires a CAN cable. Any
other configuration requires an analog cable.
NOTE: The genset controllers must all have a unique
controller address.
2.
Place controllers in MANUAL mode and start gen-
erators. Allow all start sequence timers to expire.
3.
Verify the following parameters:
• 60 Hz Comms settings > Nomin power: (set to 300
for continuous operation (COP) or 360 for prime
operation (PRI))
• 50 Hz Comms settings > Nomin power: (set to 240
for continuous operation (COP) or 288 for prime
operation (PRI))
• Comms settings > Cont.address: (unique number
for each genset)
• Pwr management > Pwr management: DISABLED
(Contact Generac Mobile Products Technical
Service)
• Pwr management > Priority: 0
• Pwr management > Control group: 2 or COMMON
• Pwr management > ControlLinkLeft: 2 or
COMMON
• Pwr management > ControlLinkRight: 2 or
COMMON
• IG-AVRi module output level adjusted to max (full
CW)
• AVR remote control voltage authority set to ±10%
NOTE: The amount of total load taken by each genset is
dependent on Nomin Power setting.
Parallel MGG450 to Other Gensets
The MGG450 can be operated in parallel to other (non-
Generac) gensets. The real portion (kW) of total electrical
load will be divided among all gensets connected. The
reactive (kVAr) power can be shared by activating the
droop CT in the alternator AVR.
The controller can communicate with other controllers via
an analog signal of either 0-3.0 V or 0-4.5 V. The other
genset must also be capable of load communication with
an analog load sharing line of the same voltage range.
The number of gensets connected via the analog line will
depend on quality of the signal and the desired resolution
of load sharing.
1.
Attach an analog cable to the LSM+ and LSM- ter-
minals, located next to the load cable connection
box.
2.
Route the analog cable away from sources of EMI/
RFI.
To change the range of the analog signal:
1.
See Figure 2-4 . Locate the NT-converter module
(A) in the control box.
2.
See Figure 3-4 . Close jumper 1 for a 0-3 volt range
or close jumper 2 for a 0-4.5 volt range.
004786
Figure 3-4. Load Share Module Jumpers Location
3.
To share reactive load, kVAr, activate the droop CT
in the alternator AVR.
NOTE: The droop CT is not activated for island opera-
tion or MGG-to-MGG parallel operation.
4.
Connect a PC to the AVR (located within the alter-
nator tower) via USB cable.
5.
Using Leroy-Somer EasyReg software, in the
REGULATION MODE activate the REACTIVE
DROOP COMPENSATION.
6.
Verify the droop CT is listed under GENERATOR
SETTINGS.
7.
Save configuration to AVR and close software.
Paralleling Shutdown
1.
Completely unload generators and verify none of
them shuts down on Loss of Field or Reverse
Power.
2.
Press the GCB button on both generators.
3.
Press STOP to shut down both generators.