Eaton 9155 User Manual

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COMMUNICATIONEaton 9155 UPS (8–15 kVA) User's Guide 164201553 Rev G (www.eaton.com/powerquality) 55Remote Emergency Power-offREPO is used to shut down the UPS from a distance. This feature can be used forshutting down the load and the UPS by thermal relay, for instance in the event ofroom overtemperature. When REPO is activated, the UPS shuts down all converters,de-energizes all system relays, trips the battery circuit breaker, and fully powers downwithin 10-15 seconds.There are two REPO positions that may be used, normally-open or normally-closed.The pins on the normally-closed REPO connector are connected together. When thisconnection is open, the logic circuitry completely shuts down the UPS, thuspreventing the power from supplying the load.If the use of normally-closed REPO operation is desired, replace the connector with anormally-closed external switch (see Figure 36 on page 49).If the use of normally-open REPO operation is desired, connect a normally-openexternal switch (see Figure 36 on page 49).NOTE To restart the UPS, reconnect the REPO connector pins and turn on the UPS manually. The pins mustbe shorted to keep the UPS running. Maximum resistance is 10 ohm.NOTE Leave the REPO connector installed in the REPO port on the UPS even if the REPO function is notneeded.C A U T I O N The REPO must not be connected to any utility connected circuits. Reinforced insulation to the utility isrequired. The REPO switch must have a minimum rating of 24 Vdc and 20 mA. To ensure the UPS stops supplying power to the load during any mode of operation, the input power mustbe disconnected from the UPS when the emergency power-off function is activated.REPO ConnectionsWire Function Terminal Wire Size Rating Suggested Wire SizeREPO L112–22 AWG (4–0.32 mm2) 18 AWG (0.82 mm2)L2Relay Output ContactsThe UPS incorporates a programmable relay output with potential free contacts forremote alarm indications (see Figure 36 on page 49). An additional four relay outputscan be obtained with the X-Slot compatible Relay Interface Card.W A R N I N GThe relay output contacts must not be connected to any utility connected circuits. Reinforced insulation tothe utility is required. The relay output contacts have a maximum rating of 30 Vac/1A and 60 Vdc/2A nominalvalues.