Hitachi SJ300 Series Instruction Manual page 231

Error
Name
Code
Gate array error
E23
E24 Phase failure detection
IGBT error
E30
E35 Thermistor
E36 Brake error
–––– Under-voltage (brownout)
with output shutoff
Automatic restart and phase
loss
E6X Expansion card #1
connection error
E7X Expansion card #2
connection error
NOTE: If an EEPROM error (E08) occurs, be sure to confirm the parameter data values are
still correct.
SJ300 Inverter
Probable Cause(s)
An internal inverter error has occurred in commu-
nications between the CPU and gate array IC.
One of three lines of the 3-phase power is missing.
When an instantaneous over-current condition
occurs on any IGBT (output transistor) device, the
inverter alarm trips. then it turns the outputs OFF
in order to protect the circuitry.
When a thermistor is connected to terminals [TH]
and [CM1] and the inverter has sensed the temper-
ature is too high, the inverter trips and turns OFF
the output.
When the inverter releases the brake and cannot
detect whether the external brake is ON or OFF
within the waiting time (set by parameter B124),
the inverter trips and turns OFF the output to the
motor.
Due to low input voltage, the inverter turns its
output OFF and tries to restart. If it fails to restart,
then the alarm trips to record the under-voltage
error event.
The inverter is restarting, due to an over-current,
over-voltage, under-voltage, or a phase loss event.
See parameter B001 setting in
Mode and Phase Loss" on page
An error has occurred in an expansion card or at
its connecting terminals. Please refer to the
manual for the expansion card for additional
details.
6–7
"Automatic Restart
3–29.