Installation and adjustment
FM 239 MuW Beta Type Z Rev.01
2022-09-01
21
distributed by
6.3.2
Setting the positions of the mechanical limit switches
Mechanical safety limit switches (NC contacts) must be used if a
hazard is posed to personnel as soon as the electric drive fails to shut
down.
The drive may only be started up when all limit switches are connected
and correctly set!
A combination with inductive proximity switches is possible.
External shock-absorbers must be fitted to protect against mechanical
destruction.
The necessary braking distance (
Δ B) depends on the velocity and
deceleration of the carriage. The braking distance must be between the
switching point of the limit switch and the actual mechanical end
position (figure 5).
Ke
y
1
Mechanical limit switches
2
Switching cam
3
Band marking safety zone
4
Bracket
B
Braking distance
Figure 6: Mechanical limit switches
The limit switches must switch so that the carriage comes to a stop
immediately before the safety zone. The safety zone is factory-marked
on the unit by a band (3).
Summary of Contents for Beta 100-D-ZSA
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