The motor isn't an instant reverse type, the direction of the motor is controlled by separate forward and reverse contactors, which are electrically interlocked via the N/C auxiliary on the opposite contactor.
Whatever direction the motor happens to be travelling in, when the control system...
No I'm talking about manually operating the limit switch while it is moving in one direction or another to simulate the standard operation. The motor is controlling a shade screen in a greenhouse. At night the screen covers the house to keep the heat inside. In the morning the control system...
The limit switches drop out the forward or reverse contactors, so when the limit switch is activated all power is removed from the motor. Its just when the limit switch is de-activated and the contactor comes back in, the motor will not re-start in the same direction. It will however run in the...
I have a small 240VAC motor which I believe has a faulty start cap. When the motor is first started it runs fine, but when it it stopped via a separate control limit switch and the contactor drops out, if the limit switch is closed again the contactor will re-energise but the motor will not...
I have had a 240VAC motor that has blown up two sets of Start & Run capacitors in the last three months. The motor has a 20 seconds on 20 seconds off duty cycle when it is triggered, and this cycle could be on for 4 to 5 minutes. Is this short duty cycle likely to be the cause of the capacitor...
Do contactor thermal overloads have the same type of trip curve characteristics as circuit breakers. And if so, how do you specify this, and is this information generally printed on overload labels??
