Hitachi SJ100 SERIES Service Manual page 16

Cause:
Remedy:
(9) External Trip (E 12)
Phenomena:
Cause:
Remedy:
Way to Reset:
(10) USP error (E 13)
Phenomena:
Cause:
Remedy:
Way to Reset:
(11) Ground fault error (E 14)
Phenomena:
To resolve the causes , please power off and disconnect the motor wire at INV (UVW)terminal.
Cause:
Remedy:
Cause:
Remedy:
Way to Reset:
(12) Over voltage at source (E 15)
Phenomena:
Cause:
Remedy:
Way to Reset:
Component itself is defect.
Replace ISPM (in case of E 11) or I/O board board (in case of E 12).
Trip due to have inputted an external signal to "EXT" input terminal of the
frequency inverter.
Faulty external device or equipment gives frequency inverter a trip requirement
when external trip function (EXT) is selected.
Evaluate external device or equipment which is connected to frequency inverter.
A
Unexpected Start Protection. This error can occur when "USP" function is
selected.
Frequency inverter trips when it is powered up with RUN command is given.
Disable RUN command when power up the frequency inverter. Or disable USP
function if possible to the system.
A or set RUN command off (stop)
Earth contact in the motor or the motor cable or in the IGBT. Frequency inverter
detects this earth contact only at power up.
Earth contact in the motor or the motor cable.
Check the impedance between output portion(wire and motor) and earth.
Detection circuit/IGBT of the inverter is defect. If the motor and the motor cable is
disconnected from the frequency inverter, the ground fault should not be detected
anymore.
Please disconnect the motor and the motor cable.
If E14 comes out at power on, please replace the unit.
Don't reset.
High voltage at power source line. Frequency inverter cannot protect source over
voltage. If it is too high, frequency inverter will be damaged.
Source voltage is too high.
Check the source voltage continously.
Insert AC reactor at source lines.
A
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