User Manual - Infosec

5.2 Complete UPS shutdown.Shut down the loads.If the system has outgoing distribution protections, switch them “Off”.Shut down the inverter. Go down to the “CONTROL & STATUS OF THE UNIT” submenu (screen 1.0) usingthe control panel keypad ((3) from figure 18), and then right once only. Screen 1.3 will appear asking youto shut down the unit by pressing (ESC). Do so, and then confirm the operation by pressing (ENT), seefigure 17.Turn the output switch (Q2) to the “Off” position.Turn fuse holder switch from battery cabinet (Q8) and/or battery fuse holder switch or UPS switch (Q3) to“Off”.Set the input switch (Q1a) and static bypass switch (Q4) to the “Off” position.Cut the UPS power supply and the bypass with the header board cut-off or general switch. The system willbe fully deactivated.Electrical discharge hazard. If after equipment shutdown, the separate battery pack(s) have to bedisconnected, wait several minutes (5 min. approx.), until the electrolytic capacitors have discharged.The equipment is fully shut down.5.3 Emergency power off (EPO) operation.Emergency Power Off (EPO) is equivalent to a complete unit system halt:All UPS converters are turned off (rectifier and inverter).No output voltage is supplied to the loads.This function can be commanded through 2-way connector (X50).See table below for the operation:E.P.O. functionTerminals (X50).Normally closed circuit bymeans of the cable bridgeprovided (it allows anexternal switch (EPO)).Activation(perform System Halt)Contact normally closed.Remote button or switch has to beopened (X50).Return to normal mode.The equipment has to be shut downand fully de-energized (turn off allswitches), wait until the DC bus isdischarged (all LEDs and LCD have tobe turned off).The equipment has to be started upaccording to section“5.1.2. Start-up procedure”.Table 3. Emergency Power Off (EPO) operation.26INFOSEC UPS SYSTEM - 4, rue de la Rigotière - 44700 Orvault - FRANCE - www.infosec-ups.comHot Line – Tel + 33 (0)2 40 76 15 82 - Fax + 33 (0)2 40 94 29 51 - hotline@infosec.fr – 06 11 AA 59 201 02