Load Control

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The MSLC-2 has four load control modes available:

• Base load

• Import/export

• Process

• Utility unload

Load control begins with the breaker closure of the utility and another discrete input selecting the load

control mode wanted. If no load control mode is selected the MSLC-2 will be in the offline mode. The

system load immediately prior to breaker closure is used as the starting base load reference. On com

mand, the adjustable ramp allows smooth, time controlled loading into a set import/export level. A ramp

pause switch is provided to stop the ramp at any point.

The import/export control is an integrating control. It adjusts the percentage of rated load carried by the

individual generators, operating in isochronous load sharing, in order to maintain a set import/export or

base load level. The MSLC-2 will maintain a constant base load or import/export level even with chang

ing utility frequencies. The MSLC-2 provides switch inputs to allow raising or lowering the internal digi

tal base load or import/export reference. The control also provides a remote analog signal input for ref

erence setting, if desired. (Signal variety: 0 to 20 mA, 4 to 20 mA, 0 to 5 V, 1 to 5 V and 0 to 10 V)