Woodward easYgen-3000XT Series, Manual, Page: 394 / 1205

• After removing of generator rated power the new generator load level shall not lay •
higher than 75% within the Add-on / Add-off band.
Moderate:
• After removing of generator rated power the new generator load level shall not lay •
over 50% within the Add-on / Add-off band.
Low:
• After removing of generator rated power the new generator load level shall not lay •
over 25% within the Add-on / Add-off band
An additional dynamic parameter (parameter ╚═▷ 5757 or ╚═▷ 5758 "IOP/MOP Dynamic")
with levels "Low", Moderate", and "Strong" prevents the gensets from being started and
stopped continuously if only a few gensets are in operation.
This function provides an easy calculation for the start of the next genset.
• Refer to the description of the dynamic parameters for detailed information. •
The following parameters need to configured for this operation:
Parameter ID Parameter text Note
5757 IOP Dynamic only for islanded operation
5758 MOP Dynamic only for mains parallel operation
5767 MOP Minimum load only for mains parallel operation
5769 MOP Hysteresis only for mains parallel operation
5770 MOP Max. generator load only for mains parallel operation
Table 61: Load-dependent start/stop - parameters for generator load operation
Islanded operation (IOP)
If the configured maximum generator capacity utilization is exceeded, another genset will
be added.
• PGN
real active
> P
max. load islanded
•
If the configured minimum generator capacity utilization has been fallen below, a genset
will be stopped depending on the dynamic setting (parameter
╚═▷ 5757 ).
• PGN
real active
< P
min. load islanded
•
Mains parallel operation (MOP)
If the required generator load setpoint for the control at the mains interchange point
exceeds the MOP minimum load threshold (parameter
╚═▷ 5767 ), the first genset will be
added.
• PMN
setpoint
– PMN
real
> PMOP
minimum
•
394 easYgen-3000XT Series B37574
4 Configuration
4.4.5.5.1 Generator Load
Released