5 Troubleshooting (continued)

5.2 Troubleshooting Flow Charts

5.2.1“MAIN VOLT/FREQ NOK”

Start

Is the main input circuit breaker

(Q1) turned on?

Y

Are the

actual value and LCD value the same?

Y

Is the main input voltage or frequency out of range?

N

Check the EEPROM voltage setting (2)

END

N

Turn on the main input circuit breaker

NY Is the LCD value zero?

N

Replace P board or M

Yboard(3) Calibrate parameter on

EEPROM(2)

Fig 5.2.1a

END

Fix the connection

N

Is the Wire #1(1) connection OK?

Y

Note (1): For SU20KX, SU40KX and SU40K models, wire #1 is connected between the P board (CNP7) and FA (CNA9) for main input. (See chap- ter 1.5.) For SU60KX, SU80KX, SU60K, SU80K, SU60KTV and SU80KTV, wire #1 is connected between the P board (CNP7) and F1 (CNF15) for main input. (See section 1.5.)

Note (2): To learn about EEPROM parameter settings and calibration, turn to section 3.2.

Note (3): For the location of the NHS-SYS-P and NHS-SYS-M boards, turn to section 1.5. To replace the NHS-SYS-M board, simply remove the EEPROM chip from an old NHS-SYS-M board and insert it into the new one.

M

P

Fig 5.2.1b

100

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Tripp Lite SU60KX manual Troubleshooting Flow Charts, Main VOLT/FREQ NOK