Need Help: Universal Voltronics Laser Power Supply Wiring
Hi,
Does anyone have the wiring diagram for a Universal Voltronics BRC-50CT-35-HL2 Power Supply? This power supply is used to power a Laserscope Paragon Laser Tube.
I have a couple of huge Northwest CO2 lasers that are using a similar supply. These use the BRC-50-35 power supply.
The CO2 tubes are about 5" diameter and about 5 feet long, all housed in a nice 'compact' box.
I actually tried to find information on the web and found that Universal Voltronics was bought by Unipower. I then called Unipower and got connected to a very helpful Tech Support person. He called his contacts within the company and was not able to find a manual.
So I took a look at one of the power supplies from the huge CO2 lasers I have. They Universal Voltronics model LRC-50-40N-STD, not the BRC model but they look identical.
I attached a datasheet which has a wiring diagram. Only the first 5 pins (1-5) were used on the laser. Pins 1 and 4 were jumpered. Pin 3 is ground, leaving only pins 2 &5 for control.
I will take a better look and the other laser and make sure the connections are the same. I had removed the laser tube and power supply from the enclosure on one of them...
I traced the connections to the relay and it simply connects two wire that go to the high voltage transformer.
Can someone please interpret this pinout for the LRC 10 pin connector:
It states that Pin 5 is jumpered to common (Pin 3). Pin 4, HV Pulse Enable (+) is an input.
I connected Pin 5 to 3, Pin 4 to 1, applied 24VDC to the relay and I still do not get any high voltage output. I also have the high voltage terminals connected to a 40w CO2 laser tube.
Maybe this schematic for the LRC 50-40 might help. This is for a 240 VAC version; my power supply is actually a 120VAC version, but the schematic is still helpful. Thank you for providing the manual for these.
By the way, Said Nazemi at Parallax Technology in Waltham MA has a few power supplies available. They are not originals, but he had some made for him. He also mentioned that Power Clinic offers repairs on these supplies.