haythame78
Member
- Join Date
- Feb 2005
- Posts
- 8
Hi
i am in the process of choosing motors to actuate the motion in a Slice and Scan machine that was discussed earlier on one of the forums (Horse power calculation for an AC motor)
i mainly have two options either to use a servo motor or a small AC motors which is a 3phase 230V (generated by the Inverter) in addition to an encoder for the position feedback. and here arises the question what is the difference between servo and other AC motors is it only the the feedback unit? i know there must be more than this
4 of these motors will have to move synchronously in steps of 1 mm which means that those motors will need to be geared to produce the motion needed. According to the calculations these motors will be 0.25KW and 7.2 RPM. those motors will have to ramp up and down in terms of speed each time it travel a step of 1 mm. Only position feedback is required in this application. however, do i still need to a speed feedback in order to control the ramping up and down in speed? would i need a multi axis controller to synchronise the motors or is it enough to use a PLC which is going to be connected to each of the motor drives?
do u think that this can be acheived using 3 phase AC motor (230V) or do i need servo motors?
do u think PID control should be applied to control those motors (which can be integrated in the motor drives)?
i am in the process of choosing motors to actuate the motion in a Slice and Scan machine that was discussed earlier on one of the forums (Horse power calculation for an AC motor)
i mainly have two options either to use a servo motor or a small AC motors which is a 3phase 230V (generated by the Inverter) in addition to an encoder for the position feedback. and here arises the question what is the difference between servo and other AC motors is it only the the feedback unit? i know there must be more than this
4 of these motors will have to move synchronously in steps of 1 mm which means that those motors will need to be geared to produce the motion needed. According to the calculations these motors will be 0.25KW and 7.2 RPM. those motors will have to ramp up and down in terms of speed each time it travel a step of 1 mm. Only position feedback is required in this application. however, do i still need to a speed feedback in order to control the ramping up and down in speed? would i need a multi axis controller to synchronise the motors or is it enough to use a PLC which is going to be connected to each of the motor drives?
do u think that this can be acheived using 3 phase AC motor (230V) or do i need servo motors?
do u think PID control should be applied to control those motors (which can be integrated in the motor drives)?