SD-108542 processor

Synchronizer Timing The time line diagrams below illustrate the various timing sequences the synchronizer function uses when paralleling single and multiple units across the generator or mains breaker (depending on application).Generator Sequencing is a capability of the EGCP-2 control to maintain an online generator capacity to Kilowatt load ratio for a multiple unit setup. In order to activate the automatic sequencing function of the EGCP-2, each unit in a multiple unit system must have the following software set points enabled: Configuration Menu: Number of Units Automatic Sequencing Multiple Enabled Each unit in the system must be in the Auto mode (Discrete Input #1 Closed) to be an active part of the sequencing system.

Loss Of Mains Detection and Action 

The EGCP-2 can be configured to detect a loss of mains condition, and respond to that condition by isolating the mains from the load, and transferring the supply of power to the load from the mains to on site engine generator sets. The EGCP-2 can be configured for single or multiple unit, no parallel or mains parallel system operation, which will detect a loss of mains. The loss of mains action is a combination of synchronizing and load control functions of the EGCP2. These functions allow the EGCP-2 controls to operate effectively upon a loss of mains condition. Below are timing diagrams for mains parallel and no parallel systems. These time lines apply to the master control in multiple unit systems, or to any single unit application.

When configured for automatic sequencing

 as described above, the Sequencing status screen of the EGCP-2 will show all of the active units on the network in order of their Network Address, and the priority of those units in the sequencing scheme. Units not in Auto mode, or with the Number of Units set point set for Single, will display the message “Manual Unit No Sequencing” in the Sequencing Status Screen. Units in Auto mode, and set for Multiple unit operation, but with the Auto Sequencing set point Disabled will still appear in the Sequencing status screen, but will not respond to automatic sequencing commands from the Master, and are not capable of operating in a Master control mode.