Rebuilt motor came back for leg machine but could not get it to work. Motor seems to work fine, but channel B of encoder seems to be non existent. Finally gave up and packed it up and sent it back to Paragon. The encoder is the R8023D-500-1/4-5-LD, P/N 74517-008. Edward R. Burk Product Manager RENCO Encoders Inc. Phone: 805-562-1186 Cell: 805-689-0421 Fax: 805-562-1150 Email: eburk@heidenhain.com The person above was kind enough to ID the encoder via a picture I sent him. He also emailed a 2 page manual to me: C:pdfelectrocraftR80_1992.pdf I made a quick drawing of the P4 connector on the electrocraft controller so I don't have to trace lines again. C:dwgelectrocraft_renco_encoder.dwg wiring is from top to bottom: I- brown I+ orange B- blue B+ green A- yellow A+ white pwr- black pwr+ red call Chad at 704 398 6970 = Paragon Atlantic Job 453509 PO 47847 RGA 53290 previous note is at http://metalbush.com/journal/past.php?id=61 This is a 36 VDC 7A motor with tach and encoder E652-501-205-007 ===http://metalbush.com/journal/past.php?id=83=== Rebuilt motor came back for leg machine but could not get it to work. Motor seems to work fine, but channel B of encoder seems to be non existent. Finally gave up and packed it up and sent it back to Paragon. The encoder is the R8023D-500-1/4-5-LD, P/N 74517-008. Edward R. Burk Product Manager RENCO Encoders Inc. Phone: 805-562-1186 Cell: 805-689-0421 Fax: 805-562-1150 Email: eburk@heidenhain.com The person above was kind enough to ID the encoder via a picture I sent him. He also emailed a 2 page manual to me: C:pdfelectrocraftR80_1992.pdf I made a quick drawing of the P4 connector on the electrocraft controller so I don't have to trace lines again. C:dwgelectrocraft_renco_encoder.dwg wiring is from top to bottom: I- brown I+ orange B- blue B+ green A- yellow A+ white pwr- black pwr+ red call Chad at 704 398 6970 = Paragon Atlantic Job 453509 PO 47847 RGA 53290 previous note is at http://metalbush.com/journal/past.php?id=61 ===http://metalbush.com/journal/past.php?id=61=== Left leg machine has been slow for a while now, but right leg slowed down also. Leg machines get used the most, but just out of curiosity, we fired up an end rail and it didn't want to run fast either. Made a test setup to run pro 100 amp by itself and still got low voltage to motor. Amplifier board is only rated 3 amps continuous so I think the mechanical part of the system is starting to wear and pull more than that (3 amps) . Used a power supply that went to 22 VDC and 10 amps to run motor. End rail started out pulling about 8 amps, but after we ran it a while the amperage came down to 2 amps. When we put the motor back on the controls we had 36 volts again at the motor armature. Lost control for while because of a broken wire, but got it back running. Once we had motor running from power supply the zero reference (R31 on pro 100 pwn) had to be adjusted (motor ran by itself with no control voltage) when the control was put back. Tried the manual setup which consists of 5k pot 2k resistor and some jumpers on the right leg machine which had slowed down. got it to take off running again in reverse, so put it back on the control and it ran at 10/sec without material in it. Tried the power supply on the left leg, but amperage never dropped below 4. Must be some mechanical trouble there. I am pretty sure I had the motor and gearbox apart earlier this year (jan?) and found no problems, but I may have missed something. Many thanks to Master Bob, who was quite helpful all week during testing. All four motors are the same. Gear boxes must be different on leg and rail. Electro craft E652-501-205-007 36VDC 7A? Has both tach and encoder. 2 settings on the pro 100 use P1-TB4 for common test point 1 and 2 on top edge TP1 and COM = 500 ohms - pot R37 TP2 and COM = 4750 ohms - pot R78 R31 is zero P1 4 to 6 is drive OK signal = about 8 VDC