General Safet; Safety Advice - ASO Safety Solutions ISK 77 Série Mode D'emploi

ISK 77 / SPK 77 Inductive Safety Relay
2. General safety regulations and protective measures
• The manufacturer and users of the plant / machine on which the protection is being used are
responsible for implementing and following all applicable safet�� regulations and rules.
• When used in conjunction with the higher-order controller, the protection guarantees functional
safet��, but not the safet�� of the entire plant / machine. The safet�� of the entire plant / machine
must, therefore, be assessed in accordance with machiner�� directive 2006/42/EC or appropriate
product norm before using the device.
• The operating instructions must alwa��s be available at the place of installation of the protection.
The�� must be read thoroughl�� and observed b�� all persons involved in the operation, maintenance
and servicing of the protection.
• The protection must onl�� be installed and commissioned b�� professionals familiar with these
operating instructions and the applicable operational safet�� and accident prevention regulations.
All of the instructions provided in these operating instructions must be observed and followed.
• All electrical work must onl�� be performed b�� skilled electricians. All relevant electrical engineering
and Emplo��er's Liabilit�� Insurance Association safet�� regulations must be observed.
• During work on the switching unit, it is to be switched to zero potential, checked to ensure that
it is at zero potential and protected against being restarted.
• If the potential-free contact of the rela�� output is supplied externall�� with a dangerous voltage,
make certain that this voltage is switched off during work on the switching unit.
• The switching unit does not contain an�� components that require servicing b�� the user.
Unauthorised conversions and repairs made to the switching unit will void all guarantees and
the manufacturer's liabilit��.
• The protection s��stem is to be professionall�� inspected at appropriate intervals and be documented
in such a wa�� that it is comprehensible at all times.

Safety advice

• The switching unit enables operation at 24 V. Connecting the operating voltage to the wrong
terminals can destro�� the switching unit.
• For capacitive and inductive loads, ensure adequate protective circuits.
The switching unit complies with EN ISO 13849 "Safety-related parts of control
systems", category 3. To meet category 3 requirements, the switching unit is designed
redundantly with two switching outputs per channel that monitor one another. Device
variant R (semiconductor relay output) is designed in accordance with category 2
with test input.
The requirements of EN 12978 "Safety devices for power operated doors and gates" and
EN 12453 "Safety in use of power operated gates" are also fulfilled.
For the design of the safety system to conform to engineer standards, the plant / machine
must be professionally inspected at appropriate intervals for proper function. The inspection
must be documented in such a way as to be comprehensible at all times.
For the design of the safety system to conform to engineer standards acc. to EN 13849
category 2 for device variant R, the safety system must be tested prior to each dangerous
movement of the plant / machine. Without testing, the operation or wiring of the safety relay
does not satisfy these safety requirements.
The manufacturer assumes no liability in the event of non-observance or intentional abuse.
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