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Chapter 9 Communication
Relay output contacts
The UPS incorporates four relay outputs; each one is available with a normally closed or open
contact.
n.o.: contact normally open
n.c.: contact normally closed
The relay output contacts must not be connected to any utility connected circuits.
Important:
Reinforced insulation to the utility is required. The relay output contacts have a maximum
rating of 250 V
Remote On/Off
Note: For additional information on RPO / ROO / EPO refer to
section
EPO / RPO /
Remote On/Off allows remote control of the power (X) button to switch the UPS on and off.
When contact changes from open to closed, the UPS is switched on (or stays on).
When contact changes from closed to open, the UPS is switched off (or stays off).
6U Rack or Tower UPS RT8kVA and RT11kVA IUOMG
Status active information: (if contact between pin and
common is closed)
• Pin 1: not on Bypass
• Pin 2: load not protected
• Pin 3: not low battery
• Pin 4: not on Battery
• Pin 5: user common
• Pin 6: on Bypass
• Pin 7: low battery
• Pin 8: load protected
• Pin 9: on Battery
/5A.
AC
ROO.
Chapter 12 Helpful information
in the
111
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