Hitachi WJ-0001S, User Manual

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motor upon during powerup tests. This feature
protects the inverter, and does not protect
humans.
E15 Input over-voltage The inverter tests for input over-voltage after the
inverter has been in Stop Mode for 100 seconds.
If an over-voltage condition exists, the inverter
enters a fault state. After the fault is cleared, the
inverter can enter Run Mode again.
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.
E22 CPU communication error When communication between two CPU fails,
inverter trips and displays the error code.
E25 Main circuit error (*3) The inverter will trip if the power supply
establishment is not recognized because of a
malfunction due to noise or damage to the main
circuit element.
E30 Driver error An internal inverter error has occurred at the
safety protection circuit between the CPU and
main driver unit. Excessive electrical noise may
be the cause. The inverter has turned OFF the
IGBT module output.
E35 Thermistor When a thermistor is connected to terminals [5]
and [L] and the inverter has sensed the
temperature is too high, the inverter trips and
turns OFF the output.
E36 Braking error When "01" has been specified for the Brake
Control Enable (b120), the inverter will trip if it
cannot receive the braking confirmation signal
within the Brake Wait Time for Confirmation
(b124) after the output of the brake release
signal.
E37 Safe Stop Safe stop signal is given.
E38 Low-speed overload
protection If overload occurs during the motor operation at a
very low speed, the inverter will detect the
overload and shut off the inverter output.
E40 Operator connection When the connection between inverter and
operator keypad failed, inverter trips and displays
the error code.
E41 Modbus communication error
When ―trip‖ is selected (C076=00) as a
behavior in case of communication error, inverter
trips when timeout happens.
E43 EzSQ invalid instruction The program stored in inverter memory has been
destroyed, or the PRG terminal was turned on
without a program downloaded to the inverter.
E44 EzSQ nesting count error Subroutines, if-statement, or for-next loop are
nested in more than eight layers
E45 EzSQ instruction error Inverter found the command which cannot be
executed.
E50
to
E59 EzSQ user trip (0 to 9) When user
–defined trip happens, inverter trips
and displays the error code.
E60 Option error (DeviceNet
Communications error) If the disconnection due to the Bus-Off signal or
timeout occurs during the operation using
DeviceNet commands, the inverter will shut off its