Protective Devices; Explanation Of The Term "Guard - MBO RW500 Operating Manual

Structure and function

Protective devices

4.4 Protective devices
4.4.1

Explanation of the term "guard"

4.4.1.1 Fixed guards
4.4.1.2 Moveable guard
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The protective devices are divided into the following main groups:
• Guards
• Protective devices
Fixed guards:
• are used if access to the area secured by the protective device is sel-
dom or never required.
• must only be loosened or removed using tools.
• do not have any electric locking (safety switch).
Interlocking moveable guard:
• are used if access to the area secured by the protective device is fre-
quently required.
• can be opened and closed without tools.
• have electric locking (safety switch).
When the protective device is opened, this causes the machine to stop.
The machine can be restarted only after the protective device is closed.
Interlocking, movable guards with guard locking:
• cannot be opened when the machine is operating.
The guard locking prevents access to the danger spot until the hazard-
ous function has been eliminated.
• can be opened and closed without tools.
• have electric locking (safety switch) and a locking.
When the protective device is lifted, the electric locking causes the ma-
chine to stop.
Only when the hazardous function has been eliminated safely is the
locking reset and then the protective device can be opened completely.
The machine can be restarted only after the protective device is closed.
Rewinder RW500