Safe Rope SwitchesOverview
Cable-operated switches are used for monitoring or for EMERGENCY-STOP devices on particularly endangered system sections.
As the effective range of a cable-operated switch is only limited by the length of the pull-rope, large systems can also be protected. Cable-operated switches (requiring pulling at both ends) and conveyor belt unbalance trackers are used primarily for monitoring very long belt systems.
The switches for wire lengths up to 50 m are supplied with 1 NO + 1 NC or 2 NC contacts and those up to 75 m with 1 NO + 3 NC contacts. The switches for wire lengths from 2 × 75 m. The switches for wire lengths from 2 X 75 m and the conveyor belt unbalance protection device are supplied with 2 NO + 2 NC contacts.
The NC contacts for cable snap or cable control signals are positive opening. The NO contact can be used, for example, for signaling purposes.
Ready-to-run and display
Cable-operated switches with one-sided operation are made ready for use by pre-tensioning the tension lock.
On switches with interlocking, with a pretensioned cable, the locking must be deactivated beforehand in order to return the cable-operated switch to its original position.
The cable-operated switch and the conveyor belt unbalance tracker can also be supplied with a factory-fitted LED (red, 24 V DC). This light in innovative chip-on-board technology allows the operating state of the switch to be visible at a distance of at least 50 m.
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