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Emerson NX manual Other DC Sources, Battery retorque values

Models: NX

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Table 6 Battery retorque values

Maintenance

Battery Cell Terminals: Check for discoloration, corrosion and connection integrity. Clean and tighten if necessary. NOTE that when installing a new battery, the initial torque value is 5 lb.-in. more than the retorque value. Table 7 shows battery retorque values.

Table 6 Battery retorque values

			Retorque Value
	Battery Mfr.	Battery Model #	in-lb (N-m)

		UPS12-300MR	110	(12.4)

		UPS12-350MR	110	(12.4)

	C&D	UPS12-400MR	110	(12.4)

		UPS12-490MRLP	110	(12.4)

		UPS12-540MR	110	(12.4)

		HX205-FR	65	(7.3)

		HX300-FR	65	(7.3)

		HX330-FR	65	(7.3)

	Enersys	HX400-FR	65	(7.3)

		HX500-FR	65	(7.3)
		HX500-FR	65	(7.3)

		HX540-FR	65	(7.3)

		16HX800F	100	(11.3)

		16HX925F	100	(11.3)

		24HR3000	65	(7.3)

	East Penn	27HR3500	65	(7.3)

		31HR4000	65	(7.3)
		31HR4000	65	(7.3)

		31HR5000	65	(7.3)

If the system uses a different model battery, contact Liebert Services for the required torque value.

To access battery cell terminals, disconnect the inter-tier cable and two shelf retaining screws. Once disconnected, insulate (with protective boot or electrical tape) the cables to prevent accidental shorts.

The battery shelf can now be pulled out. Tighten each terminal connection to the retorque value.

When replacing a battery, the terminal connections must be cleaned and tightened. Disconnect and insulate the cables connected to the battery. Secure each battery shelf with retaining screws when maintenance is complete.

Other DC Sources

If the UPS system uses a DC source other than a factory-supplied Matching Battery Cabinet, perform maintenance on the DC source as recommended in the DC source manufacturer’s maintenance manual, available on the manufacturer’s Web site.

Liebert®NX™

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Emerson NX manual Other DC Sources, Battery retorque values

Contents

AC Power Liebert NXFor Business-Critical Continuity Product Warranty Registration CONTACTING EMERSON NETWORK POWER FOR SUPPORT1.0 INTRODUCTION TABLE OF CONTENTSIMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS 2.0 OPERATION4.0 MAINTENANCE 5.0 SPECIFICATIONS3.0 OPTIONS FIGURES TABLESPage IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONSBattery Cabinet Precautions UPS Module 1.1 General Description1.0 INTRODUCTION Critical Load1.2.3 Battery Mode 1.2.1 Normal Mode1.2.2 Bypass Mode 1.2.4 Maintenance Bypass1.3 Options 2.1 Features 2.0 OPERATIONFRONT DOORS REMOVED DOORS AND INNER SKINS REMOVEDFigure 3 Main components, 400-600kVA Liebert NX Figure 6 Utility fail Figure 5 Normal ModeFigure 4 Main display screen, typical Operation2.2 Touchscreen Navigation 2.2.1 Main Display ScreenSystem Status 2.2.4 Measures Menu 2.2.2 Status2.2.3 Events Log Menu Figure 8 StatusBattery Test 2.2.5 Battery MenuBattery Status Figure 9 Measures menusOperation Battery MeasuresFigure 10 Battery parameters LiebertNXOperation 2.2.6 Life MenuFigure 11 Life menu LiebertNX2.4 Modes of Operation 2.2.7 Settings Menu2.3 Animated One Line Mimic 2.3.1 Rectifier Functional BlockDC Bus 2.4.1 Load on BypassFigure 13 Load on bypass Figure 14 Load on bypass, UPS availableFigure 16 Input power fail, load on DC source 2.4.2 Input Power Failure-Load on DC Source2.4.3 Off DC Source Figure 17 Load on UPS, DC source not availableUPS Module 2.4.4 Remote Emergency Power Off2.5 Manual Operations-All Systems Critical Load2.5.1 Startup-Single Module System 2.5.2 Startup-1+N System Transfer Procedure Retransfer Procedure2.5.3 Load Transfer and Retransfer-Single Module System 2.5.6 1+N System Transfer load from UPS to Bypass 2.5.7 1+N System Transfer load from Bypass to UPS 2.5.8 Shut Down-Single Module UPS System2.5.9 1+N System Shutdown 2.5.10 Load Transfer-1+N System Remove a UPS from System Collective 2.5.11 Load Transfer-1+N System Add a UPS to the System Collective2.6 Automatic Operations 2.6.1 Overloads Without Transfer2.6.3 Automatic Transfers to Bypass, UPS System Faults 2.6.2 Automatic Transfers to Bypass Overload Condition2.6.4 Automatic Retransfers to UPS 3.1 Remote Alarm Unit 3.2 MopUPS Shutdown and Monitoring Software3.0 OPTIONS For details, see http//connectivity.Emersonpower.com 3.3 Manage UPS Adapter3.4 Connectivity Connectivity combinations3.4.1 Available Selectable Input Contacts 3.4.2 Available Selectable Output Contacts4.1 Safety Precautions 4.0 MAINTENANCEObserve the safety precautions in Battery Cabinet Precautions on page 4.2.1 Professional Startup 4.2 Liebert ServicesMaintenance Agreements The Signature Program Training4.3 Routine Maintenance 4.3.1 Record Log4.3.2 Air Filters 4.4 Battery Maintenance 4.3.3 Limited Life Components4.4.1 Battery Safety Precautions Matching Battery Cabinets-Optional Table 5 Battery voltage, nominal and floatOther DC Sources Table 6 Battery retorque values4.5 Detecting Trouble 4.6 Reporting a Problem4.7 Upstream Feeder Circuit Breaker Setting Inspections 4.5.1 Items to check includeNotes on Environmental Specifications 5.0 SPECIFICATIONS5.1.1 Battery Operation 5.1 DC SourcesElectrical specifications Physical specificationsSpecifications Specifications LiebertNXPage Ensuring The High Availability Of Mission-Critical Data And Applications