Functions
Review state, , Monday, 19. January 2009
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Functions
The positive-opening contacts close if:
• the actuator is moved in
• the locking device is locked
The dangerous state can only be activated via the safety switching device while
the safety contacts are closed. During the first clockwise turns of the knurled nut,
the contacts are opened and a STOP signal is transmitted to the downstream
safety switching device. The actuator is not released until the knurled nut has
been turned to the right limit stop and the locking device has unlocked. During this
manual time delay (delay time see chapter 14 "Technical data"), the dangerous
state must be stopped in order for the protective device to be opened safely. The
Safety Locking Device can only be locked if the actuator is moved in.
Figure 4.1: Example for the manual delay
1 Machine is running, locking device is locked
2 Machine coasts as the knurled nut is turned
3 Machine has stopped, locking device is unlocked
4 Protective device can be opened
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Applications
The Safety Locking Device is suitable for e.g. the following protective devices:
• turning or swivelling moveable guards
• laterally moveable protective gratings or sliding gates
• seldom used maintenance doors or covers
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The manual locking/unlocking function makes the L10 Safety Locking Device
suitable for systems with protective devices that are used only occasionally or
that are located relatively far away on which no magnet activation is provided.
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: [email protected]
