Good evening all,
Had a quick question about an overhead crane I wired today. The crane is operated by hand held controller and moves right-left on a rail system.
I installed it. Motor ran. Crane ran fine from left to right. However, crane is now stuck to the far left side of the rail. There's power to the hand held controller. When "left" and "right" buttons are pushed the contactors (or relays if you prefer) inside the control panel close, circuit is then closed, but no power to the motor. No tripped breakers at all. Crane stays put.
Hard to tell without looking to be sure, but basically I'm wondering why a motor would not be receiving power even though contactor coils are closed.
Had a quick question about an overhead crane I wired today. The crane is operated by hand held controller and moves right-left on a rail system.
I installed it. Motor ran. Crane ran fine from left to right. However, crane is now stuck to the far left side of the rail. There's power to the hand held controller. When "left" and "right" buttons are pushed the contactors (or relays if you prefer) inside the control panel close, circuit is then closed, but no power to the motor. No tripped breakers at all. Crane stays put.
Hard to tell without looking to be sure, but basically I'm wondering why a motor would not be receiving power even though contactor coils are closed.