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Epsilon Eb and EN Drives Reference Manual
Fault Descriptions
Power Up Test
This fault indicates that the power-up self-test has failed. This fault cannot be reset with the
reset command or reset button.
NVM Invalid
At power-up the drive tests the integrity of the non-volatile memory. This fault is generated
if the contents of the non-volatile memory are invalid.
Invalid Configuration
EN Only
EN
A function module was attached to the drive on its previous power-up. To clear, press and
hold the Reset button for 10 seconds.
Epsilon Only
This fault will occur if the digital board in the drive does not match the power board
settings. It is only useful during manufacturing. A drive with this fault should be returned
for service.
Drive Overtemp
Epsilon Only
Indicates the drive IGBT temperature has reached 100°C (212°F).
Power Module
This fault is generated when a power stage over-temperature, over-current or loss of power
stage logic supply occurs. This can be the result of a motor short to ground, a short in the
motor windings, a motor cable short or the failure of a switching transistor.
It can also occur if the drive enable input is cycled "Off" and "On" rapidly (>10 Hz).
High DC Bus
This fault will occur whenever the voltage on the DC bus exceeds the High DC Bus threshold.
The most likely cause of this fault would be an open external shunt fuse, a high AC line
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Содержание Control Techniques EN Series
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