hi folks,
m workin on Mitsubishi Servo amplifier MR J2 S20A & Servo motor of 200 w (mitsu make)....I have configured the whole application & it's workin fine but if power fails i lost the reference position of the servo motor shaft...i can regain the home position by mounting a sensor & using ZRN istruction (FX 1N plc) but i don't want to use the sensor coz of the space constraints.....
i've gone through the ABS (absolute data read) instruction & even fitted a battery for encoder but when power is cut the encoder can't keep the track of the motor shaft motion (if applied manually) during that time....so on regaing power i lost the home position
can anybody tell me a solution for this problem without using sensor & if not possible here how same thing is implemented in other industrial grade servo systems? gimmee make of some good servo systems
also pls tell me how encoder in the industrail grade servos work
(i hope it's disc type optocoupler & not pot type but some more
details)
thanx for goin through such a lenthy mail.....
cheers,
joe.
m workin on Mitsubishi Servo amplifier MR J2 S20A & Servo motor of 200 w (mitsu make)....I have configured the whole application & it's workin fine but if power fails i lost the reference position of the servo motor shaft...i can regain the home position by mounting a sensor & using ZRN istruction (FX 1N plc) but i don't want to use the sensor coz of the space constraints.....
i've gone through the ABS (absolute data read) instruction & even fitted a battery for encoder but when power is cut the encoder can't keep the track of the motor shaft motion (if applied manually) during that time....so on regaing power i lost the home position
can anybody tell me a solution for this problem without using sensor & if not possible here how same thing is implemented in other industrial grade servo systems? gimmee make of some good servo systems
also pls tell me how encoder in the industrail grade servos work
(i hope it's disc type optocoupler & not pot type but some more
details)
thanx for goin through such a lenthy mail.....
cheers,
joe.