PREDATOR XS TURNTABLE STRETCH WRAPPER OPERATION MANUAL
HIGHLIGHT INDUSTRIES, INC. ● 2694 PRAIRIE SW; WYOMING; MI 49519 ● 1-800-531-2465
II-9
Hitachi AC Drive Fault Detection
The microprocessor in the AC frequency drive detects a variety of fault conditions and captures
the event, recording it in a history table. The inverter output turns off or “trips” similar to the way a
circuit breaker trips due to over-current condition. Most faults occur when the motor is running
(refer to illustration below). However the frequency drive could have an internal fault and trip in
Stop mode. In either case, fault can be cleared by pressing the Stop/Reset key.
Exhibit 2-5: Fault Detection of Hitachi AC Drive
Hitachi AC Drive Error Codes and Troubleshooting
An error code will appear on the display automatically when a fault causes the inverter to trip. The
following tables lists the cause associated with the error.
Error
Code
Name
Cause(s)
E01
Over current event while at
constant speed
E02
Over current event during
deceleration
E03
Over current event during
acceleration
E04
Over current event during
other conditions
The inverter output was short-circuited, or the
motor shaft is locked or has a heavy load. These
conditions cause excessive current for the
inverter, so the inverter output is turned OFF.
The dual-voltage motor is wired incorrectly.
E05
Overload protection
When a motor overload is detected by the
electronic thermal function, the inverter trips and
turns OFF its output.
E14
Ground fault
The inverter is protected by the detection of
ground faults between the inverter output and the
motor during power up tests. This feature
protects the inverter and does not humans.
E21
Inverter thermal trip
When the inverter internal temperature is above
the threshold, the thermal sensor in the inverter
module detects the excessive temperature of the
power devices and trips, turning the inverter
output OFF.
