CB Aux Contact

Connect the utility breaker auxiliary (CB Aux) contact that opens and closes

when the utility tie breaker opens and closes. Wire the breaker auxiliary contact

in series between the +24 Vdc voltage source and terminal 47 of the MSLC. In

addition, it may be desirable to put an MSLC ON/OFF switch in series with this input.

Utility Unload Contact

Connect the utility unload switch to terminal 48.

Import/Export Control Contacts

The import/export mode of control is initiated by closing the CB Aux contact 47

and closing the import/export contact 49.

Process Control Mode Contact

If the MSLC will be used as a process control, connect a switch from +24 Vdc to

the Process Control discrete input, terminal 50. When this contact is closed, load

on the associated DSLC™ equipped generators in isochronous load sharing is

controlled at a level required to maintain the analog process input at a chosen reference.