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4. OPERATION AND DISPLAY
4.2 Status display mode of interface unit
4.2.1 Display flowchart
Use the display (5-digit, 7-segment LED) on the front panel of the interface unit for status display,
parameter setting, etc. Set the parameters before operation, diagnose an alarm, confirm external
sequences, and/or confirm the operation status. The unit is in the automatic scroll mode at power-on.
Press the "MODE" button for more than 2s to change the display before starting operation. Press the
"MODE" "UP" or "DOWN" button once to move to the next screen.
UP
DOWN
MODE
button
Diagnosis Basic IFU parameters
AlarmStatus display
Regenerative load
ratio [%]
Bus voltage [V]
Peak bus voltage
[V]
External I/O
signal display
Output signal
forced output
Software version
low
Software version
high
Current alarm
Last alarm
Second alarm in past
Third alarm in past
Fourth alarm in past
Fifth alarm in past
Sixth alarm in past
Parameter error No.
IFU parameter No. 0
IFU parameter No. 1
IFU parameter No. 18
IFU parameter No. 19