Tripp Lite SU20KX, SU80KX, SU40KX owner manual Preliminary Checklist Parallel UPS

19 – Start-Up, Shutdown and Bypass (continued)

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9-6 Shutdown Procedure (Single UPS) (continued)
To transfer the critical load to NORMAL mode from Manual
Bypass:
11.	Confirm the UPS is in MANUAL BYPASS (the MANUAL
	BYPASS circuit breaker Q3 is ON; the OUTPUT Q4 , BYPASS	Q4	Q3	Q2	Q1
	INPUT Q2 and MAIN INPUT Q1 circuit breakers are OFF).
22. Turn ON the BATTERY BREAKER (on the SU20KX and
	SU40KX units, the BATTERY BREAKER is on the back of	Output	Manual	Bypass	Main
	the UPS; on the SU60KX and SU80KX units, the BATTERY
		1	Bypass	Input	Input
	BREAKER is on the back of the battery cabinet).

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33. Turn ON the BYPASS INPUT circuit breaker Q2 (the amber Bypass LED should come on and the LCD will display “Load Unprotected-On Manual Bypass).

44. Confirm the amber BYPASS LED is ON. Do not proceed if it is not ON.

55. Turn ON the OUTPUT circuit breaker Q4 .

66. Turn OFF the MANUAL BYPASS circuit breaker Q3 . The LCD will display “Load Unprotected-On Auto Bypass”.

77. Turn ON the MAIN INPUT circuit breaker Q1 . The Power Module fans will turn ON.

88. Press and hold the green ON button until the UPS beeps, then release the button. The UPS will perform a self-test diagnostic and the LCD will display “Self Diagnosis”. After the UPS self-test is completed, the UPS will transfer to NORMAL mode (green LED ON and LCD displays “Load Protected-On Line Mode”).

99. Confirm there are no active alarms present (“!” on the display and audible beeping). If an alarm is present, press the UP or DOWN arrows to display the active alarm. Correct the action as required.

10Scroll through the Measure Menu and confirm all input and output power readings are within the recommended specifications.

Q2

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Q3

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Q4

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Q1

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11If any problems are noted, contact your technical support personnel

9	for further assistance.
	12 The critical load is now supported by conditioned battery back-up

power.

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9-7 Preliminary Checklist (Parallel UPS)

Warning: Parallel configuration requires exactly two UPS systems (1+1 redundancy or capacity). Do not attempt to link more than two UPS systems via parallel configuration. The UPS systems must have the same rating and capacity for parallel UPS installation. Attempting to link dissimilar UPS systems will damage the UPS systems and create a serious risk of personal injury and property damage.

•All circuit breaker switches should be off, including the breakers of the external battery cabinets.

•Confirm that no voltage potential exists between Neutral and Ground.

•Confirm that the input power source matches the rating (voltage, frequency and phase) of the UPS systems.

•Each UPS must have a different “Parallel ID”that indicates the UPS systems are being run in parallel. See Section 10-5-5for more details.

Note: After start-up, the UPS systems will perform a brief self-test and display the results on the LCD screen. After a successful self-test, the UPS systems will provide AC power to the connected equipment load.

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