Omron Powli BU50SW Instruction Manual page 65

7
. Using the UPS monitoring software and contact signal
10. Precautions and notes for the use of the Contact Signal
● When connecting a device such as a relay that generates counter electromotive force to the signal
output circuit, connect diodes that prevent counter electromotive force to both ends of the relay.
● When power is restored after the unit stopped automatically during a power failure, the unit
automatically restarts and supplies power. If you do not want to start the connected devices, turn OFF
their switches or set the auto restart setting (setting switch 2) to ON. (See page 24.)
11. Xserve RAID connection procedure
Apple's Xserve RAID can be controlled by changing the unit's contact signal card settings.
* Cable: Connection cable (BUC28), sold separately
1. UPS connection procedure
(1) Turn OFF the unit's power switch and remove the contact signal card from the rear of the unit.
"How to insert/remove the contact signal card"
See also
(2) Change the contact signal card's JP2 to JP9 jumper settings (8 settings) to "SC05/06."
(3) Change the JP10 jumper setting to "SC05XSR."
(4) Insert the contact signal card into the UPS.
(5) Connect the BUC28 cable connector (female end) to the Xserve RAID serial port and turn the connector
fi xing screw clockwise to tighten it.
Connect the other end (male end) of the same cable to the contact signal card and turn the connector
fi xing screw clockwise to tighten it.
(6) Turn ON the power switches for the Xserve RAID and the UPS.
52
Notes
Explanation
Contact
signal card
ø
BUC28
cable