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7310 Overspeed Fault In ABB DCS880

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(@click2electro)
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How can resolve problem 7310 Over speed Fault In ABB DCS880 ?

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Posts: 12811
Admin
Topic starter
(@click2electro)
Member
Joined: 3 years ago

Selected motor, the motor is turning faster than highest allowed speed due to incorrectly set minimum/maximum speed, insufficient braking torque or changes in load when in torque control.
Check:

The settings of 30.11 M1 minimum speed, 30.12 M1 maximum speed and 31.30 M1 overspeed trip margin.

The settings of the speed controller in group 25 Speed control.

The setting of 46.02 M1 speed scaling actual.

The torque control settings.

For correct speed feedback when using an encoder or a tacho. Thus, compare the value of 90.01 Motor speed for control vs. the measured motor speed (hand held tacho).

For proper connection of the speed feedback measurement.

For correct field current.

If the motor was accelerated by the load.

If the DC-voltage measurement (C1, D1) might be swapped when EMF speed feedback is used.

If the armature circuit is open (e.g. DC-fuses, DC-breaker,
...) when EMF speed feedback is used.

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