Energy Tech Laboratories EDP70 manual Operational modes, 24/36kVA Ratings

Page 9

1.5Operational modes

S3	Maintenance By-pass

S2
S1	LOAD
AC Supply	S4

Battery	24/36kVA Ratings
Contactor	24/36kVA Ratings
S3	Maintenance By-pass

S2	S5
	480Y/277V
	LOAD
S1	S4
AC Supply	208Y/120V
AC Supply
Battery
Contactor	50/80kVA Ratings

Figure 3 – Normal operation

During normal operation the load is supplied by the mains through the rectifier and inverter. The rectifier also supplies the current for recharging and maintaining the battery in a fully charged state.

S3	Maintenance By-pass

Reserve Supply	S2
	S1	S4	LOAD
AC Supply
		Battery
		Contactor

24/36kVA Ratings

S3	Maintenance By-pass

Reserve Supply S2

S5

S1	S4
AC Supply
Battery	50/80kVA Ratings
Contactor	50/80kVA Ratings

480Y/277V

LOAD

208Y/120V

Figure 4 – Utility Supply failure

When the utility supply voltage is absent or outside the allowed tolerances, the battery supplies the inverter. This will be indicated on the UPS front panel display and the Remote Alarm Unit (if fitted). The standby time available depends both on the capacity of the battery and on the size of load. It is possible to extend autonomy by reducing the output power by disconnecting non-important loads. In all cases, the alphanumerical display shows the residual autonomy.

MI00/10056 rev.1--05/2001-- page 9

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Contents EDP70 Plus Important Safety Instructions Read Before Installing ALL CASES, Seek Medical Attention Immediately Contents Figures Introduction Block diagram Summary of the manual Summary of the equipment24kVA Standard Configuration 480V Functions24/36kVA Ratings Operational modes10 --MI00/10056 rev.1--05/2001 Safety General safetySymbols Electrical precautions Battery precautionsBattery safety equipment Installation Mechanical characteristicsStorage ALL Measurements are Millimeters and Inches NR4 16 --MI00/10056 rev.1--05/2001 Battery Cabinet Drawing for 24/36kVA Ratings 18 --MI00/10056 rev.1--05/2001 Battery Cabinet Drawing for 50/80kVA Ratings 20 --MI00/10056 rev.1--05/2001 Installation Recommended wire sizes Supply Output Reserve Supply UPS Type = 2770 - - - ∙ e 0.125 h Tk / T0 Tr Tk VentilationOutput ConnectionUninterruptible Power System No Unauthorized Operation MI00/10056 rev.1--05/2001-- Electrical connections Table of T& B’s cat.no.s for terminals and crimp tools24 12/18/24kVA Battery CompartmentOutput, Reserve, Input Reserve Ground Primary Input Output External Batteries 36 24/30/36kVA Observe Polarities and Orientations RS232 Female EDP70 Plus 50/80kVA 36 --MI00/10056 rev.1--05/2001 QS1 QS2 QS3 QS4 QS5 Emergency Power Off Signal connectionsBattery charge inhibited Thermostick connector 50/80kVA onlyDisplay indicators ControlsUser Controls LCD Control PanelStart UP Maintenance Bypass Installing the EPOSHUT-DOWN MI00/10056 rev.1--05/2001-- Silencing Audible Alarm Visual and Audible AlarmsMimic Liquid Crystal DisplaySystem Normal Display Page HeadingsBattery Test Weekly Power History Down to Access Load Time on Reserve xxg xxh xxm xxs Inverter Load System Alarm Abnormal operating mode messagesStop DUE to Overload RECTIFIER/BATTERY Alarms Message Condition Inverter Alarms Message Condition LOAD/RESERVE Alarms Message Condition Power History Matrix Power HistoryBattery Test Battery Autonomy TestResetting data loss manually MI00/10056 rev.1--05/2001-- 11.1 AS400 Computer Interface11.2 RS232 Remote AlarmsBatteries 13.1 EDP70 PLUS/24/18/12 Battery Installation/Start-up13.2 EDP70 PLUS/24/18/12 Optional Battery Cubicle = EDP70 PLUS/24/18/12 Internal Battery ShelvesMaintenance and Spare Parts 13.3 EDP70 Plus above 20kVA Battery Installation/Start-up13.4 EDP70 Plus above 20kVA Battery Cubicle EDP70 Plus System LOG