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Ref doc :
330740F/EN
revision 01
29.09.2015
4
Operating principle
The safety receiver is equipped with a secure wireless reception module designed to interpret signals from a radio
transmitter.
In addition, depending on the program selected by the two B switches, the receiver (RSRA) will have one or two inputs
(S31-S32 and S33-S34) with two control contacts indicating that the remote control is placed on its charger or not:
Transmitter « inactive » on its charger
When the transmitter is on its charger, the charger contacts are closed. Only the wired elements are taken into account
for protection. Output 58 is inactive (associated “V2” LED is off). Static outputs 27 to 77 remain inactive. Safety relays
« K1, K2 » are deactivated if the safety receiver has not been reset.
Transmitter « active » removed from its charger.
When the transmitter is removed from the charger, the « transmitter presence » contacts on the charger open and the
receiver safety relays remain active.
Output 58 and the "V2" LED flash rapidly to indicate that the remote control must be activated. The receiver safety relays
are deactivated if the transmitter is not activated after the maximum period of time set on the “A” switches has elapsed.
The safety relays are also deactivated if one of the charger contact remains close.
Once the remote control is activated, output 58 a
nd the “V2” LED come on steady.
From this moment on, the emergency stop function on the transmitter also acts on the receiver.
So long as the safety relays are active, the auxiliary buttons on the remote control control the 6 static outputs (27 to 77) of
the module.
Depending on the operating mode selected, the safety receiver can also be activated by the « ON » button on the
transmitter, if the charger contacts are open.
4.1 Intervention in equipment area.
See procedure in appendix
5
Product safety and intervention conditions
5.1 Product safety
The product is designed to satisfy the following requirements :
Wireless Emergency stop system in compliance with the standards:
o
DIN ISO 13849-1 (2008) : Category 4 / Performance Level e
o
EN 61508-1 (-7 :2001): SIL 3
o
CE declaration of conformity by notified body.
Key enabling use by a qualified operator.
Detection of presence of transmitter on charger, inhibiting operation of equipment if transmitter is not placed on
its charger after use.
5.2 Intervention conditions
The interventions with the product will be made according to provisions of the articles R233-8 and R233-9 of the
employment law. To respect these rules, an organization of the work and the operating modes must be defined to protect
the safety of the operators. Only the authorized persons can intervene in equipment area.
A product can be used in two different modes described below.
« Monitoring
– Diagnostic » mode
Applications concerned.
This product can be used as a wireless stopping system by qualified personnel performing maintenance or inspection on
machinery. Such machinery is generally mobile or large, preventing use of conventional wiring, and for which a diagnostic
in downgraded operating mode may be required (example: conveyor or load transfer area).
Access to this equipment in operation in the “monitoring – diagnostic” mode is acceptable provided:
The risk assessment shows that the intervening technician can be safety cleared in the event of an immediate
danger.
The equipment wireless emergency stop system does not create any additional hazard.
The operator can regularly press a « Activity monitoring » button requiring him to keep the transmitter in hand.
No change of tool or adjustment is performed by the intervening technician.
