Jokab Safety Using safety rope switches Data Sheet
Using safety rope switches
ABB Jokab Safety Line Strong switches are designed to be mounted on machines and sections of conveyors which cannot be protected by guards. In contrast
to traditional mushroom head type Emergency Stop buttons, Safety Rope Switches can initate the emergency command from any point along the installed rope
length and provide robust Emergency Stop Rope Pull protection for exposed conveyors or machines.
In combination with a dual channel safety monitoring relay, ABB Jokab Safety Rope Systems can be used as emergency stop devices monitored for up to
Category 4 to EN 954-1 or PLe ISO13849-1. All ABB Jokab Safety Rope Emergency stop switches conform to ISO13850 and IEC 947-5-5. They have a positive
mechanical linkage between the switch contacts and the wire rope. The switches have wire-breaking monitoring.
ABB Jokab Safety Switches | 77
Using safety rope switches
Tensioning of rope is achieved by the use of ABB Jokab Safety’s new patented Tensioner / Gripper accessory. Traditional turnbuckle and and clamp
systems are difcult to tension and adjust and frequent re-tensioning or maintenance is normally required of either the turnbuckle or the clamps.
Viewing of the switch tension window is difcult.
Because of the added friction on the eyebolts and rope when
navigating corners, ABB Jokab Safety’s unique “universal” pulley
can be used to navigate inside or outside corners without causing
damage to the rope. They are stainless steel and can be rigidly
mounted.
78 | ABB Jokab Safety Switches
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