Error Codes - Hitachi SJ300 Series Quick Reference Manual

Error Codes

The SJ300 series inverters will trip on over-current, over-voltage, and
under-voltage to protect the inverter. The motor output turns OFF, allow-
ing the motor to free-run to a stop. Press the Stop/Reset key to reset the
inverter and clear the error.
Basic Error Codes
Error
Code
Over current event while at
E01
constant speed
E02 Over current event during
deceleration
Over current event during
E03
acceleration
E04 Over current event for other
conditions
E05 Overload protection
Braking resistor overload
E06
E07 Over voltage
protection
EEPROM error
E08
Under-voltage error
E09
E10 CT error
(current transformer)
CPU error
E11
External trip
E12
E13 USP (Unattended Start
Protection)
E14 Ground fault
E15 Input over-voltage
E16 Instantaneous power failure
Name
14
Probable Cause(s)
• Inverter output was short-circuited
• Motor shaft is locked
• Load is too heavy
• A dual-voltage motor is wired
incorrectly
Note: The SJ300 will over current trip at
nominally 200% of rated current
• DC braking power(A054) set too high
• Current transformer / noise error
• Motor overload is detected by the
electronic thermal function
• Regenerative braking resistor exceeds
the usage time or usage ratio
• DC bus voltage exceeds a threshold,
due to regenerative energy from motor
• Built-in EEPROM memory experi-
enced noise, high temperature, etc.
• DC bus voltage decreased enough to
cause a control circuit fault
• High electrical noise near inverter
• A fault occurred in the built-in CT
• Built-in CPU had internal error
• [EXT] input signal detected
• When (USP) was enabled, an error
occurred when power was applied while
a Run signal was present
• A ground fault was detected between
the inverter output and the motor. This
feature protects the inverter, and does
not protect humans.
• Input voltage was higher than the
specified value, 60 sec. after powerup
• Input power removal > 15ms or
> B002... inverter restarts on Run cmd