6–6

Monitoring Trip Events, History, & Conditions

Troubleshooting and Maintenance

Error

Name

Cause(s)

Code

 

 

 

 

 

 

 

 

E 1 1

CPU error

A malfunction in the built-in CPU has occurred, so

 

the inverter trips and turns OFF its output to the

E 2 2

 

 

motor.

 

 

 

E 1 2

External trip

A signal on an intelligent input terminal configured as

 

EXT has occurred. The inverter trips and turns OFF

 

 

 

 

the output to the motor.

 

 

 

E 1 3

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 1 4

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 1 5

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 2 1

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 2 3

Gate array error

An internal inverter error has occurred in communica-

 

tions between the CPU and gate array IC.

 

 

 

 

 

E 3 5

Thermistor

When a thermistor is connected to terminals [6] and

 

[L] and the inverter has sensed the temperature is too

 

 

 

 

high, the inverter trips and turns OFF the output.

 

 

 

E 6 0

Communications error

The inverter’s watchdog timer for the communica-

 

tions network has timed out.

 

 

 

 

 

- - -

Under-voltage (brown-

Due to low input voltage, the inverter turns its output

 

out) with output shutoff

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.