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Start/stop sequences parameter menu
6.
DISPLAY
Config
Motor?
YES
6.1 Option E and F: Load sharing
This function carries out equal load sharing between all generators connected to a
common busbar. The function is active in these running modes: Island operation,
parallel with mains and synchronisation between mains and generator's busbar.
Parallel with mains with power transport control (constant power to mains / constant
power from mains ~ peak lopping, option F): Each of the generators running carries
out equal load sharing, while the main parameter (power transport value) is held at a
constant level.
Should one of the running generators have a "fixed value" setpoint (F=fixed value),
this generator will no longer participate in the load sharing.
Island operation: The main parameter (frequency) is held constant.
Option F: The generator can be started/stopped automatically dependent on the mans
power transport. The main purpose is to prevent generator set running, if the
generator delivered power lies in a bad working area for the engine (e.g. 5% load, bad
efficiency). By setting the values correctly, a good hysteresis can be achieved, thus
preventing too often start/stop of the genset, if power demand is close to the limits.
ON or OFF can be overruled by setting the value to "000"
Function: If a constant mains transport value (power to mains or from mains) is set,
the MPC-1 will calculate the generator power setpoint. If this calculated value
becomes bigger than the value "ON load mains" and the "ON delay mains" timer runs
out, the genset will be started and synchronised, and take load up to the setpoint
(requires one of the setpoints "auto 1" or "auto 2" to be ON). The MPC-1 will at all
times keep mains transport constant by changing generator power if total power
consumption changes. If the setpoint drops below the "OFF load mains" value and the
"OFF delay mains" timer runs out, the genset will be deloaded, GCB will be opened
and, after cool down time runout, the genset will be stopped.
All the MPC-1 units are communicating via a twisted pair communication line. The
actual generator power (secondary contol parameter) is communicated via the twisted
pair, and the load sharing is carried out.
Factory
Commis
set
sioning
value
YES
Programming manual MPC-1
DESCRIPTION
YES/NO. If NO is chosen the
following sub-parameters will not
be shown.
4189340103E
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