Xantrex Technology GT100E - Manual (Page 15)

Master/Slave Operation States
152602 1–3
If daily role reversal is on, then the configured slave is operational slave
on odd days (January 1,3,5,...) and operational master on even days
(January 2,4,6,...).
Master Unit
The GT100E Master inverter will control the GT100E MS Combiner Box
via a control cable. The Master inverter will enable and disable the Slave
inverter, and monitor the status of the Slave inverter through an
interconnect cable. If the interconnect cable is disconnected, the master
will open the combiner box and go online.
Slave Unit
The GT100E Slave inverter will monitor the status of the Master inverter
through the interconnect cable. The inverter will be enabled from the
Master inverter. If the interconnect cable is disconnected then the slave
will go online.
Master/Slave Operation States
The Master/Slave operation states will follow the standard states specified
by the
GT100E Grid Tie Inverter Operation, Maintenance and
Troubleshooting Manual (P/N 152365) with the following Master/Salve
configuration state.
1. At Power up, the Master inverter will disable the Slave inverter, and
close the contactor in the GT100E MS Combiner Box.
2. The Master inverter will go online through the normal operating
States. The Slave inverter will remain disabled.
3. When the Master inverter's power level increases, and reaches the
High Power Threshold (configurable parameter). The Master inverter
will shutdown, open the contactor in the
GT100E MS Combiner Box,
and the Master will also enable the Slave inverter.
4. Both the Master and Slave Inverters will go to an online state.
5. End of the Day or Cloud Interaction - When the Master inverter's
power level decreases, and reaches the Low Power Threshold and has
maintained the power level for the Minimum Transition Seconds
(configurable parameter). The Master and the Slave inverters will