What causes the air switch to trip when the motor stops?
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Dear experts: There is a vertical pipeline pump on site that starts and operates normally, but the air circuit breaker trips when trying to stop it using the control panel on site (the same problem occurs even when using the soft-start and control circuits of other functional pumps). Running the motor without load with the pump coupling disconnected is also normal. What is the reason for this?
If the downtime is too short, consider increasing the deceleration time; soft starters allow for the setting of both acceleration and deceleration times.
If there was no tripping when the pump was stopped before, then check the main contacts of the circuit breaker
Try reconnecting by inserting another cable.
Too little information is provided; some of it needs to be related to your manufacturing process.
I didn’t understand. Please explain in more detail :L:L
It wasn’t explained in detail, so it wasn’t clear. I agree with the person above; let’s give it a try by extending the shutdown and startup times. If that doesn’t work, post again here.
Thank you all! It was finally determined that the cause was an issue with the owner’s power cable. Posted here for reference!