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Error
Code
Name Cause(s)
E 13
USP When the Unattended Start Protection (USP) is
enabled, an error occurred when power is applied
while a Run signal is present. The inverter trips
and does not go into Run Mode until the error is
cleared.
E 14
Ground fault
The inverter is protected by the detection of ground faults
between the inverter output and the motor upon during
powerup tests. This feature protects the inverter, and does
not protect humans.
E 15
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.
E 21
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.
E 30
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.
E 35
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.
E 37
Emergency Stop
Emergency stop signal is given.
E 60
Communications error
The inverter’s watchdog timer for the communications
network has timed out.
- - -
Under-voltage (brownout) with
output shutoff
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.
NOTE: If an EEPROM error (E08) occurs, be sure to confirm the parameter data values are still
correct. If the power is turned OFF while the [RS](Reset) intelligent input terminal is ON, an
EEPROM error will occur when power is restored.
66
Troubleshooting and
Maintenance
6 6
Troubleshooting and
Maintenance