Q: How is it the IS/ISD/ISD-CR is so short overall? Isn't the motor coupled to the ballscrew, and if so, when should I replace the coupler/brushes/motor?
A: The "IS" in IS/ISD/ISD-CR stands for "Integrated Series" meaning that the ballscrew and motor are integrated. There is no coupling for the motor because the motor windings fit around the end of the ballscrew which has a magnet attached (keyed). In essence, the ballscrew with the magnet, is the rotor. There are no brushes to replace as it is an AC brushless servo.
Q: Is there any way to home the IS faster than the standard 10 mm/sec velocity?
A: At the time the system was ordered, this option should have been specified. If you already have a limit switch option, the change to the creep option is simple and can be done in the field. If you do not have the limit switch option, you probably don't have the limit switch connector on the controller, so this would have to be added in addition to adding the limit switch to the actuator itself.
Q: Instead of using two types of grease for preventative maintenance on the IS series, can we use the same lithium-based #2 grease on both the ballscrew and linear guide rails?
A: Yes. As long as the grease is lithium #2, the same can be applied to the ballscrew and linear guide rails. Make sure that you have the IS/ISD series and not the ISD-CR. The CR series uses a fluorine-based grease that does not mix well with lithium-based grease.
Q: Our process has changed and we now require a brake on one of the axes. Is the brake something that can be added in the field?
A: Yes. Adding on a brake module requires changing the non-motor endcap to the brake endcap and then adding the actual brake. Most controllers already come with the brake connector installed, but if the controller does not have the brake connector installed, IAI would have to add it. In addition to these two items, you would also need a brake box and new motor/encoder cables.
Q: If I want to change the distance the slide rotates off of the hard stop, can I just rotate the encoder wheel?
A: No. The poles of the motor are lined up with the z-phase slots on the encoder wheel for commutation and homing purposes. If the encoder wheel is rotated, more likely than not, the poles of the motor will no longer be aligned with the encoder wheel. If the wheel is out of alignment and the attempt is made to home or turn the servo on, the slider will fault out the controller as "A5" as the pole is not sensed.
