Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.components,sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
|
|||
|
|||
Reliance DC motor controller component info?
Have a failed Reliance "Jr. Pak-1000" 0.3KW DC motor drive. Note that this is
not Reliance USA, as in Rockwell, etc., but Reliance, Japan, which used to be part of Reliance Int'l, but no more. Symptom is that dc motor is not running smoothly at low speed setting (motor "jerks"), and doesn't reach top speed. Swapping motors and controllers indicates this controller is at fault. It consists of 3 basic components: - a PBF206 thyristor "H-bridge" - a 25cm^^3 cube-shaped module These two modules are in series with each other and with the load and the 230vac mains. Controlling these modules is a PCB which accepts a small (0-8vdc) speed control voltage and a speed-proportional feedback tachometer voltage (0-100vdc), and outputs control signals (via small conductors/molex plug) to both modules. The "mystery cube" is marked with simply "MC-0005G". No source logo or icon. I can't find any reference to such a part. Any help would be greatly appreciated. Thanks, -- DaveC This is an invalid return address Please reply in the news group |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Help identifying a component | Electronics Repair | |||
No Component! | Electronics Repair | |||
WTD Info on Tapmatic 700X and info on Tapmatics | Metalworking | |||
Lorch Junior lathe slide rest info? | Metalworking | |||
*** Rec.Woodworking Mini-FAQ *** 126 (w/Filter info!) | Woodworking |