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What are Fault detection codes which require a power reset after the fault is cleared for ATV312?

Drive does not start, no code displayed
• If the display does not light up, check the power supply to the drive and check the wiring of inputs AI1 and AI2 and the connection to
the RJ45 connector.

• The assignment of the "Fast stop" or "Freewheel stop" functions will prevent the drive from starting if the corresponding logic inputs
are not powered up. The ATV312 then displays [Freewheel stop] (nSt) or [Fast stop] (FSt). This is normal since these functions are
active at zero so that the drive will be stopped if there is a wire break.

• Check that the run command input(s) have been actuated in accordance with the chosen control mode (the [2/3 wire control] (tCC)
parameter in the [INPUTS / OUTPUTS CFG] (I-O-) menu, page 45).

• If an input is assigned to the limit switch function and this input is at zero, the drive can only be started up by sending a command for
the opposite direction (see page 84).

• If the reference channel (page 51) or the control channel (page 52) is assigned to a communication network, when the power supply
is connected, the drive will display [Freewheel stop] (nSt) and remain in stop mode until the communication bus sends a command.

• If the LED on the DC bus is lit and nothing appears on the display, check that there is no short-circuit on the 10 V power supply.

• If the drive displays [Ready] (rdy) and refuses to start, check that there is no short-circuit on the 10 V power supply and check the
wiring of inputs AI1 and AI2 and the connection to the RJ45 connector.

• In the factory setting, the "RUN" button is inactive. Set the [Ref.1 channel] (Fr1) parameter, page 28 , and the [Cmd channel 1] (Cd1)
parameter, page 57, to control the drive locally.

The cause of the fault must be removed before resetting by cycling power to the drive.




 
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