5 Troubleshooting (continued)
5.2 Troubleshooting Flow Charts (continued)
5.2.3“BYPASS VOLT/FREQ NOK”
Start
Are the
the main or bypass N input circuit breaker
(Q1 and Q2)
turned on?
Turn on the main or
bypass input
circuit breaker
END
Fix the connection
Y
N
Are the
N
actual value and LCD value the same?
Y |
|
|
Is the main input | Y | |
voltage or frequency |
| |
| ||
out of range? |
|
N
Check the EEPROM voltage setting (2)
END
Y
Is the LCD value zero?
N
Replace P board or M
board(3) Calibrate parameter on
EEPROM(2)
Is the Wire #11(1) connection OK?
Y
Fig 5.2.3a
Note (1): For SU20KX, SU40KX and SU40K models, wire #11 is connected between P board (CNP8) and FA (CNA9) for bypass input. (See chapter 1.5.) For SU60KX, SU80KX, SU60K, SU80K, SU60KTV and SU80KTV, wire #11 is connected between P board (CNP8) and F1 (CNF15) for bypass input. (For locations, see chapter 1.7)
Note (2): To learn about EEPROM parameter settings and calibration, turn to chapter 3.2.
Note (3): For the location of the
M
P
Fig 5.2.3b
102