EUCHNER RPS - Manual

Operating Instructions for Rope Pull Switches
RPS...
Safety rope pull switch RPS
Correct use
In accordance with EN 60947-5-5, EN ISO 13850, it must be ensured that parts of or complete industrial
machines or installations can be stopped as quickly as possible by generation of an emergency stop signal.
The purpose of these regulations is to prevent any danger for persons or damage to machines.
The following applicable standards must be taken into account for this purpose:
Regulations on installation and operation: EN ISO 13849-1 Safety of machinery. Safety related parts of
control systems
Risk assessment on the machine: EN ISO 12100, Safety of machinery – Basic concepts –
General principles for design – Risk assessment and risk
reduction.
The safety rope pull switches of the series RPS have been designed and tested in accordance with the
standards EN 60947-5-5 and EN ISO 13850. They must be used only in control circuits.
Safety rope pull switches are used on the accessible sides of conveyor systems or machines. In contrast to
emergency stop switches (e.g. mushroom-head pushbuttons) located at certain intervals that allow the
emergency stop signal to be generated only at the devices themselves, rope pull switches allow signal
generation at any point along the rope length.
The safety rope pull switches of the type RPS are intended for use only in closed areas.
Design
The safety rope pull switches of the type RPS consist of a polyamide housing, those of the type RPS-M of a
die-cast aluminum housing. They achieve the specified degree of protection IP67 if the cover is properly closed
and if a cable gland is used that offers at least equivalent protection. The RPS has three cable entries M20x1.5.
The switches comply with the international requirements according to EN 60947-5-5 and EN ISO 13850, i.e.
after actuation or a rope tear, the emergency stop switch latches automatically, and the switch can then be
reset to its initial state only by means of the resetting device on the switch.
Depending on the switch version, it is possible to achieve a rope length of 75 m. It must be taken into account
here that the friction in the overall system can become so high due to the rope guides that this makes it difficult
or impossible to reset the system (see section Installation).
This can be avoided by choosing different system components.
The user is responsible for ensuring that the system functions properly.