Emerson Epsilon EP Drive 400518-01 Manual de instalación descargar pdf (Pagina 204)

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Epsilon EP-P Drive and FM-3/4 Module Reference Manual

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

The FM was not on this drive during its previous power-up and it is not known if the setup data in the FM matches the drive

and motor to which the FM is now attached.

This can also happen when a FM is removed from a drive and the drive is powered-up.

To reset the fault, create or open a configuration file with the correct drive and motor selections and download the

configuration to the FM or drive. If you are certain that the setup data in the FM or drive matches the system configuration,

press and hold the drive’s Reset button for 10 seconds (until the fault is cleared).

Drive instability and resultant property damage may occur to the drive, motor or both if the fault is cleared using the Reset

button when the setup data in the FM does not match the current drive and motor.

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 440 VDC. The most likely cause of this fault would be an

open shunt fuse, a high AC line condition or an application that requires an external shunt (that is, a large load with rapid

deceleration).

Low DC Bus

This fault will occur whenever the voltage on the DC bus drops below 96 volts. The most likely cause of this fault is a

reduction (or loss) of AC power. A 50 ms debounce time is used with this fault to avoid faults caused by intermittent power

disruption.

Encoder State

Certain encoder states and state transitions are invalid and will cause the drive to report an encoder state fault. This is usually

the result of noisy encoder feedback caused by poor shielding.

Encoder Hardware

If any pair of encoder lines are in the same state, an encoder line fault is generated. The most likely cause is a missing or bad

encoder connection.

Motor Overtemp

This fault is generated when the motor thermal switch is open due to motor over-temperature or incorrect wiring.

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Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 204