Reply with QuoteThat voltage is a bit high (215) but It can run at 180 volts. I'm currently doing testing on some with IGBT's.
Can Viper 200 drive a Fanuc DC Servo Motor?
Hello,
Can Viper 200 drive a Fanuc 20M Brush DC servo Drive? the specs. are
23Nm TRQ, 18 Amp, 40 amp. Peak, 213V 1500RPM . I want to retrofit a Mazak HMC with Mach3.
Thanks,
Jorge
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That voltage is a bit high (215) but It can run at 180 volts. I'm currently doing testing on some with IGBT's.
Larken,
How would the servo motor work with 180 volts? The top RPM would be 80%of what it did as new? Will this affects the Torque?
Thanks,
Jorge
It doesn't affect torque (very little) because the drive only gives the voltage to the motor it needs. At low speeds the drive may give the motor only a low voltage.
Yes, the motor will only run 80% of its top speed.
Encoder??
What are the specs. for the encoder that works best with the Viper?
If I am planning on use it with this Fanucs servo motors.
Thanks,
Jorge.
I've used up to 4000 line (8000 cnt) encoders. Depends on your motor gearing which encoder res you need.What are the specs. for the encoder that works best with the Viper? If I am planning on use it with this Fanucs servo motors.
Doesn't 4,000 line = 16,000 count in quadrature
Dennis
A basic line/rev count of 4000 line IS in quadrature, but can be increased by 2x or 4x quadrature.
Al.
Last edited by Al_The_Man; 05-27-2007 at 08:42 AM.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Ya, my mistake.Doesn't 4,000 line = 16,000 count in quadrature
I'd like to be able to connect to a Resolver. Anyone know how?
^^you want to go brushless soon?
Looking at this page resolvers don't look to impressive next to encoders?:
http://www.auto-met.com/heidenhain/t...a/LINEAR-2.HTM
Dennis
No, brushless uses too many wires. A few years ago i bought some Teknic servo drives (worldservo.com) . They are a nice drive, but way too much work to connect them up. Thats when i decided to develop my own.
I plan on working on an AC servo though by next year.
