Eaton Powerware 9125, Installation Manual

Page: 33 / 276

INSTALLATION
EATON Powerware
®
9125 (9910-P30) UPS Installation Guide for IBM
®
Applications
S
164201636 Rev A
19
If the Off button is pressed after the REPO is activated, the UPS
remains in Standby mode when restarted until the On button is
pressed.
W A R N I N G
The REPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit must be
separated from any hazardous voltage circuits by reinforced insulation.
C A U T I O N
To ensure the UPS stops supplying power to the load during any mode of operation, the
input power must be disconnected from the UPS when the emergency power-off function is
activated.
NOTE The REPO function activates when the REPO contacts close.
NOTE If the REPO function is not needed, the REPO connector must remain installed in the
REPO port on the UPS rear panel.
NOTE For Europe, the emergency switch requirements are detailed in Harmonized
document HD-384-48 S1, “Electrical Installation of the Buildings, Part 4: Protection for Safety,
Chapter 46: Isolation and Switching.”
To install the REPO switch:
1. Verify that the UPS is off and unplugged.
2. Remove the REPO connector from the REPO port on the UPS rear
panel.
3. Connect isolated, normally-open, dry contacts (rated to handle
60 Vdc maximum, 30 Vac RMS maximum, and 20 mA maximum)
across the REPO device to Pin 1 and Pin 2 (see Figure 27).
Use stranded, non-shielded wiring, size 0.75 mm
2
–0.5 mm
2
(18–20 AWG).
NOTE A separate contact must simultaneously cause UPS input AC power to be removed.