Fagor BCSD Series, User Manual, Page: 33 / 118

Digital Brushless AC S ervo D rive system - Ref. 1809 BCSD-33/116
2.1.3. Installation Alignment
Align the shaft of the servomotor with that of the machinery to be controlled, and then connect the shafts
with elastic couplings. Install the servomotor so that alignment accuracy falls within the range shown below.
Measure this distance at four different positions in the circumference. The difference between the
maximum and minimum measurements must be 0.03 mm or less. (Turn together with couplings).
Note:
• If the alignment accuracy is incorrect, vibration will occur, resulting in damage to the bearings.
• Mechanical shock to the shaft end is forbidden, otherwise it may result in damage to the encoder of
the servomotor.
2.1.4. Installation Orientation
Servomotor can be installed either horizontally or vertically.
2.1.5. Handling Oil and Water
If the servomotor is used in a location that is subject to water or oil drops, make sure of the servomotor
protective specification. If the servomotor is required to meet the protective specification to the through
shaft section by default, use a servomotor with an oil seal.
Through shaft section:
It refers to the gap where the shaft protrudes from the end of the servomotor.
2.1.6. Cable Tension
When connecting the cables, the bending radius should not be too small, do not bend or apply tension
to cables.
Since the conductor of a signal cable is very thin (0.2 to 0.3 mm), handle it with adequate care.
Through Shaft Section