LEGRAND Daker DK 10 kVA Parallel Installation Quick Start Download Page 6 | Manualshive

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LEGRAND Daker DK 10 kVA Parallel Installation Quick Start Download Page 6

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Recommended Circuit Breakers to be installed at the UPS input/output

MODEL

INPUT (CBi)

OUTPUT (CBo)

4,5-6KVA

40A

30A

10KVA

63A

63A

The breaker type should be “C” or “D” with the following current ratings:

• Install and connect the UPS units according to the diagrams in figure 2, 3, 4, 5.

CAUTION

The MTBS is an optional for maintenance.

2 Parallel system installation

CBi : installation input breakers

CBo : installation output breakers

CB1 : UPS utility input breaker

Utility input

UPS output

Figure 1

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Summary of Contents for Daker DK 10 kVA

Page 1: ... Part LE08927AA 09 15 01 GF Daker DK 4 5 10 kVA Parallel installation quick start ...

Page 2: ...2 ENGLISH 3 UK Daker DK 4 5 10 kVA ...

Page 3: ...3 Daker DK 4 5 10 kVA Index Introduction 2 1 Important Safety Instructions 2 2 Parallel system installation 3 3 Single Unit Check 5 4 Parallel Setting 7 4 Parallel Mode Start up 8 5 Trouble Shooting 9 ...

Page 4: ...void electrical hazards or damages to the UPS and the loads connected To prevent potential leakage current hazard ensure that the AC main supply is securely grounded PleasenotethattheParallelfunctionoftheUPScanbeenabledonlyin NormalMode operation Before to set a parallel installation ensure that the output voltage tolerance for each UPS at zero load condition is less than 0 5Vac Please consult you...

Page 5: ...m around the UPS and Battery bank to allow good ventilation conditions Please refer to the UPS manual for the detailed installation guide To reduce noise interference do not cross or mix input output and battery cables Please install the communication wires for parallel and control signal functions including cat5 serial usb and EPO cables keeping them away from input output and battery cables To p...

Page 6: ...type should be C or D with the following current ratings Install and connect the UPS units according to the diagrams in figure 2 3 4 5 CAUTION The MTBS is an optional for maintenance 2 Parallel system installation CBi installation input breakers CBo installation output breakers CB1 UPS utility input breaker Utility input UPS output Figure 1 ...

Page 7: ...igure 4 1900mm RJ 45 communication connecting wire Connect the parallel CAT5E cables as a Ring Network Figure 3 using the parallel kit plate to fix them to the UPS rear panel Figure 4 2 units parallel 3 units parallel 4 units parallel CAUTION The maximum length of the communication connecting wires shall be less than 7M All the Input output power cable should have the same length max 25m ...

Page 8: ...eakers CB1 for each UPS is set to off position Turn on the AC input of the UPS to be checked Turn on only the input breaker CBi connected to the UPS to be checked and the utility breakers CB1 on the rear panel of the UPS itself DO NOT TURN ON THE INVERTER Figure 5 Enter in setting mode by pressing On keys simultaneously for 3 seconds Figure 6 Verify that all the UPS s parameters match with the def...

Page 9: ...Frequency range Inverter Output Voltage Operation Mode Output Voltage Adjustment Parallel ID Number Parallel Function On Off SAVE Press to Save After Saved UPS Locked Shut off AC input power to reset the UPS Table 1 Single unit ID number must be 01 or UPS will have an Er17 error occurred Single unit Parallel function must be OFF P 01 or UPS will have an Er21 error occurred ...

Page 10: ...ing from normal mode to stored energy mode and viceversa Verify that the LCD panel works normally and doesn t display errors Output Error Voltages Check Verify the output voltage for each UPS unit at 0 load and make sure the voltage difference between each unit is under 0 5Vac If the voltage difference is between 0 5 1 0Vac the parallel error current will be higher If the voltage difference is ove...

Page 11: ... Resistor setting will cause unpredictable failure or UPS burned out Eventual error can t be detected automatically by the UPS Parallel Function Enable and ID Numbers setting Ensure that all the circuit breakers at the input and output are set to off position Turn on the AC input of the UPS to be configured Turn on only the input breakers CBi connected to the UPS to be checked and the utility brea...

Page 12: ...t and the inverter is off for all the UPS connected Turn on the AC input only for UPS 2 UPS 3 UPS 4 The UPS 2 UPS 3 UPS 4 LCD will show Er21 Turn on UPS 1 AC input The UPS 2 UPS 3 UPS 4 stop showing Er21 UPS UPS 1 UPS 2 UPS 3 UPS 4 TEST AC OFF TEST OK Table 4 If the error Er21 still appear on the display of one UPS please verify and eventually repeat the setting and wiring process described above ...

Page 13: ...ndancy Function Check If the parallel system is working properly N 1 redundancy operation the N 1 redundancy LED is on CAUTION If the N 1 led is off the loads exceed the redundancy level The load has to be reduced until the N 1 redundancy LED turn ON To verify that the redundancy function indicator works properly repeat the start up procedure turning on only part of the UPS connected in parallel a...

Page 14: ...1 Er27 The UPS Must Be Operated in Normal Mode in Parallel System The UPS is not working in Normal Mode ECO Mode and Frequency Converter Mode are not supported for parallel system Change UPS setting as Normal mode Er08 DC BUS High Level Abnormal 1 If the output voltage difference between each unit is higher than 1 0Vac an Er08 could Appear on the display panel during the parallel system start up 2...

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Page 16: ...ment le contenu de cet imprimé et de communiquer sous n importe quelle forme et modalité les changements apportés World Headquarters and International Department 87045 LIMOGES CEDEX FRANCE 33 5 55 06 87 87 Fax 33 5 55 06 74 55 www legrandelectric com ...

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