Rope Safety Switches with Reset for Emergency Stop
Main Data
- Metal or polymer housing, from one to three conduit entries
- Protection degree IP67
- In conformity with EN ISO 13850
- 7 contact blocks available
- Transversal head or longitudinal head versions
- M12 assembled connector versions
- Silver contacts gold plated versions
- Several accessories available
Description
These rope operated safety switches are installed on machines or conveyor belts, to activate the emergency stop of the machine on every hand intervention on the rope, from any point. They allow cost savings on machines of medium-large size, where normally many emergency stop push buttons can be replace by one single switch. Provided with self-control function, they constantly check their correct working operation, signalling with the opening of the contacts on eventual loosening or breaking of the rope. These safety switches, after their activation, keep the contacts open till the reset push button is manually pulled, even if the rope is left free.
Rotating Heads
Removing the four fastening screws, in all switches, it is possible to rotate the head in 90° steps.
Regulation of intervention point
Stretch the rope connected to the switch, until the end of the indicator reaches about the middle of the green ring. Pull the knob in order to close the safety contacts inside the switch. Below the knob a green ring will be disclosed.
Reset button indicator
If the rope stretching indicator is in the correct operation area, it is possible to close the electric safety contacts pulling the blue reset button, The green ring allows to know the switch condition quickly.
Rope regulation point indicator
All switches are provided with a green ring that shows the area of the correct stretching of the rope. The installer has only to stretch the rope until the black indicator will be in the middle of the green area. In this position it is possible to reset the switch, and to close the electrical safety contacts. If a traction (or loosening) of the rope it is high enough to permit the black indicator to go outside the correct stretching area, there will be the reset action and the opening of the safety contacts.