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Installation Guide Linear Rotary Motors
3.3 Internal Mechanical Stops
Do not drive into the internal mechanical stops!
It must be ensured that the linear motor does not move to the lower or upper internal stop
during operation, as otherwise the linear motor may be damaged! The internal stops may
only be used for homing purposes. The homing speed must not exceed the value of 0.01
m/s.
3.4 Max. Speed
The mechanically maximum permissible speed of 1500 rpm must not be exceeded.
3.5 Option Load Compensation MagSpring®
The MagSpring option is a passive load compensation based on a magnetic spring with constant force over
the functional stroke range that can be integrated into the module. MagSprings are available in various force
levels and can either push or pull the linear rotary shaft. The MagSpring option can be used to compensate
the load mass. With the correct design, the motor current and thus its power loss can be reduced, by using a
MagSpring. This makes higher cycle rates possible.
If the MagSpring is sized properly, it can move the linear rotary shaft including the load mass into a collision-
free zone in the event of current loss.
•
Close to the stroke limit (idle state), the MagSpring has a reduced force to protect the
linear rotary motor from mechanical shocks in case of malfunction/control (self-
acceleration into mechanical stop).
•
If the maximum defined stroke (see data sheet) is exceeded, the MagSpring function
can no longer be guaranteed.
•
The function of the MagSpring is affected by mechanical influences such as static and
sliding friction. Depending on the operating conditions, it is not possible to guarantee
complete retraction/extension of the linear rotary shaft, which is stimulated by the
MagSpring and therefore passive.
3.6 Stainless Steel Housing (SSCH)
The PR01-52-SSCH linear rotary motors are encased in a stainless steel housing. As a result, these motors
have a uniformly high IP protection rating (IP69s) and can withstand "in place" cleaning processes such as
CIP and SIP. They are specially designed for the food or pharmaceutical & medical industry.
•
The exact list of materials used can be found in chapter 4.4.
•
The user is obliged to check whether the cleaning agents used are compatible with the
materials of the linear rotary motor.
•
Cleaning must only be carried out when the axle is stationary. It is recommended that
cleaning is carried out with the linear rotary shaft extended.
•
The linear rotary shaft must be dried before it is put back into operation.
•
The specified IP degree of protection is achieved at standstill.
Page 8 / 30
PR01-52-SSCH
ENG
NTI AG / LinMot
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