Hello guys,
I had another one of those unique experiences and wondering about the results.
A new machine just been installed and the brake on a 3HP motor would not fully disengage . The brake is rated at 200VDC +/- 6% and has a rectifier that states a max of 500VAC and doesn't specify the output but with 230VAC input I measured 110VDC with the brake connected and 135VDC with the brake disconnected from the rectifier. I figured that was the issue so the installer went out and picked up a full wave rectifier and wired it in. I haven't had a chance to measure the output of the rectifier and to my knowledge it will have a DC voltage with ripples peaking at 230VAC * 1.414 and the question is how likely is it for the brake to get damaged?
Thanks
Kal
I had another one of those unique experiences and wondering about the results.
A new machine just been installed and the brake on a 3HP motor would not fully disengage . The brake is rated at 200VDC +/- 6% and has a rectifier that states a max of 500VAC and doesn't specify the output but with 230VAC input I measured 110VDC with the brake connected and 135VDC with the brake disconnected from the rectifier. I figured that was the issue so the installer went out and picked up a full wave rectifier and wired it in. I haven't had a chance to measure the output of the rectifier and to my knowledge it will have a DC voltage with ripples peaking at 230VAC * 1.414 and the question is how likely is it for the brake to get damaged?
Thanks
Kal