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FAQ – LSA/SCARA

March 3rd, 2009 Posted in FAQ

Q: If the linear servo actuator is controlled with pulse train, what is the minimum unit in mm in which the actuator can move?

A: You can operate your LSA-N15 by 0.001 mm per pulse. Note, however, that the maximum input frequency receivable on the controller side is 500 kpps, which means that when the travel is set to 0.001 mm per pulse, the maximum speed will be limited to 500 mm/sec. (The speed will increase if the travel per pulse is increased.)

Q: The error “Voltage error of absolute data backup battery” occurred during operation using an IX SCARA robot. What should we do?

A: Replace the absolute data backup battery and perform an absolute reset (set the home). The absolute reset procedure is specified in the operation manual for your SCARA robot. The key points of this process are as follows:

1. Back up the parameters and data beforehand.
2. To perform an absolute reset, a dedicated jig is required, as a rule. (No dedicated jig is required for an absolute reset of arm 1 or 2.)
3. Disable the automatic update of home preset value.  As long as you follow the correct procedure by keeping the above points in mind, the system will continue to work according to the same positions (without generating position deviations) even after the battery is replaced and an absolute reset is performed.