Powering On The Array - Sun Oracle Sun Storage 2500-M2 Arrays Hardware Installation Manual

1. Disconnect the two-pole, 20-amp circuit breaker for the storage array.
2. Make sure that all of the DC power switches on the DC-powered expansion
tray are turned off.
3. Connect the DC power connector cables to the DC power connectors on the rear
of the controller tray or controller tray, and expansion trays.
Note – The three source wires on the DC power connector cable (–48 VDC) connect
the expansion tray to centralized DC power plant equipment, typically through a
bus bar located above the cabinet.
Note – It is not mandatory that the second DC power connection on each of the
expansion tray's DC power-fan modules be connected. The second DC power
connection is for additional redundancy only and can be connected to a second DC
power bus.
4. Have a qualified service person connect the other end of the DC power
connector cables to the DC power plant equipment as follows:
a. Connect the brown –48 VDC supply wire to the negative terminal.
b. Connect the blue return wire to the positive terminal.
c. Connect the green/yellow ground wire to the ground terminal.

Powering On the Array

1. Turn on both Power switches on each expansion tray that is attached to the
controller tray. Depending on your configuration, it can take several minutes
for each expansion tray to complete the power-on process.
While the power is being applied to the trays, the LEDs on the front and the rear
of the trays come on and go off intermittently
2. Check the LEDs on the expansion trays to verify that the power was
successfully applied to all of the expansion trays. Wait 30 seconds after turning
on the power to the expansion trays before turning on the power to the
controller tray.
3. Turn on both Power switches on the rear of the controller tray. Depending on
your configuration, it can take several minutes for the controller tray to
complete the power-on process.
42 Hardware Installation Guide • June 2011