Chapter 2 Installing the actuator
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2-3-2 Installation
Since the RSF-B mini series actuator is a high precision servo mechanism, great care is required for
proper installation.
Install the actuator taking care not to damage accurately machined surfaces. Do not hit the actuator
with a hammer. Take note that actuators provide a glass encoder, which may be damaged by impact.
●
Procedure
(1) Align the axis of rotation of the actuator and the load mechanism
precisely.
Note 1: Very careful alignment is required especially when a rigid
coupling is applied. Slight differences between centerlines
will cause failure of the output shaft of the actuator.
Note 2: When installing the actuator to a coupling, use a plastic
hammer to avoid excessive physical shocks.
(2) Fasten the flange of the actuator with flat washers and high strength bolts. Use a torque wrench
when tightening the fasteners.
The recommended tightening torque is shown in the table below:
Model
Item
RSF-8B
RSF-11B
RSF-14B
Number of bolt holes
3
4
4
Wrenching
torque
Bolt; Hole depth M3; Depth: 6mm M4; Depth: 7mm
M5; Depth:
10mm
Nm
1.4
3.2
6.3
kgfcm
14
33
64
(3) For wiring operation, refer to the “Technical Data” of the driver.
(4) Motor cable and e magnetic sensor cable
Do not pull the cable. Do not hang the actuator with the cable. If you do, the connection part
may be damaged. Install the cable with slack not to apply tension to the actuator. Especially, do
not use the actuator under any condition where the cable is bent repeatedly.
Do not disassemble and re-assemble the actuator.
As many precision components are used, the Harmonic Drive Systems, Inc. does not
guarantee the actuator that has been reassembled by others than the authorized
persons by the Harmonic Drive Systems, Inc.
CAUTION
Flange
