Tripp Lite SU1500XLCD Power Supply User Manual


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4-5
3a
3b
Yourmodelmaydiffer.
14
Basic Connection and Start-Up
3
EPO Port Connection
Thisoptionalfeatureisonlyforthoseapplicationsthatrequire
connection to a facility’s Emergency Power Off (EPO) circuit.
When the UPS is connected to this circuit, it enables emergency
shutdown of the UPS’s inverter and inhibits transfer to internal
bypass. Using the cable provided, connect the EPO port of your
UPS (see
3a
) to a user-supplied normally closed or normally
open switch according to the circuit diagram (see
3b
).
Note:
1. If using a cable other than what is supplied, the cable should not exceed
350 feet or have a resistance of greater than 10 ohms.
2. If a non-latching EPO switch is used, the EPO must be held for a minimum of
1 second. This does not apply to a latching EPO switch.
CAUTION: The EPO port is not a phone line surge suppressor;
do not connect a phone line to this port.
UPSUnitStatewhenassertingEPOwithAClinepresent:
Output Fans Serial SNMP USB LCD Screen*
OFF ON ON ON ON sdo
TorestarttheUPSunitafterassertingEPOwithAClinepresent:
Option 1:
1. VerifythattheEPOassertionhasbeenremovedorcleared.
2. Press ON button until unit beeps, then release.
3. UPS output will turn back on after it completes diagnostics.
Option 2:
1. VerifythattheEPOassertionhasbeenremovedorcleared.
2. Remove AC line power to the UPS unit, wait until the LCD is
completely off.
3. Reapply AC line power. Now the UPS will start back up in
normal operation mode.
UPSUnitStatewhenassertingEPOwithoutAClinepower:
Output Fans Serial SNMP USB LCD Screen*
OFF OFF OFF OFF OFF sdo
TorestarttheUPSunitafterassertingEPOwithoutAClinepresent:
1.VerifythattheEPOassertionhasbeenremovedorcleared.
2. Reapply AC line power to the UPS unit. Now the UPS will start
back up in normal operation mode.
*”sdo” indicates emergency power off
13-03-138 93-3168-EN.indd 14 3/28/2013 1:05:18 PM
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