14 Approvals / standards ��������������������������������������������������������������������������������������20 15 Terms and abbreviations ����������������������������������������������������������������������������������21 1 Preliminary note The instructions are part of the unit� They are intended for authorised persons according to the EMC and Low Voltage Directive and safety regulations� The instructions contain information about the correct handling of the product� Read the instructions before use to familiarise yourself with operating conditions, installation and operation�...
2 Safety instructions • Follow the operating instructions� • Improper use may result in malfunctions of the unit� This can lead to personal injury and/or damage to property during operation of the machine� For this reason note all remarks on installation and handling given in these instructions� Also adhere to the safety instructions for the operation of the whole installation�...
► Adhere to the principle of normally closed operation for all external safety circuits connected to the system� ► In case of faults within the fail-safe sensor which result in the defined safe state: take measures to maintain the safe state when the complete control system continues to be operated�...
5 Function Fail-safe sensor 2 x LED: signal (yellow); power (green) Close range Enable zone Safe switch-off distance s Target 5.1 Enable zone The output is only enabled when damped in the enable zone� Outside this enable zone the output remains switched off�...
5.2 Protection against simple defeating The fail-safe sensor reacts to metal objects, e�g� the frame of a security door� Other metal objects that are not intended to enable the sensor must not be allowed to enable the fail-safe sensor, either intentionally or unintentionally� ►...
6.2 Installation conditions The unit is non-flush mountable according to IEC 60947-5-2, type I2C40SP2M� ► Install the unit non-flush only� In case of flush installation, the sensing range is increased and the sensor can remain permanently switched (not allowed)� ► Ensure the unit cannot work loose� ►...
For unit with cULus approval and the scope of validity cULus: The device shall be supplied from an isolating transformer having a secondary Listed fuse rated as noted in the following table� Overcurrent protection Control-circuit wire size Maximum protective device rating Ampere (0�13) (0�20)
8.2 Determine the enable zone If the sensor is in the adjustment mode, the enable zone of the sensor can be determined by moving the damping element� As soon as damping is carried out in the enable zone, the yellow LED goes out� If the target is in the close range or in the immediate vicinity of the enable zone, the LED starts to flash again�...
9 Operation 9.1 Sensor signals The safe state is when the output is switched off (zero-current state: logic "0")� The fail-safe sensor must be operated with a clock signal on its clock input (TE)� The clock input signal must meet the defined time conditions (see figure)� T1 ≥...
9.3 Cross faults Cross faults are detected by the fail-safe sensor and lead to an error message (permanently logic "1")� The pull-down current of the clock generator must not exceed 30 mA as the fail-safe sensor can no longer switch this current� An error message is no longer possible then� 9.4 ...
9.4.2 Switching of the LED without delay If the target was away from the Undamping < 2s: sensor for less than 2 s (> 35 mm), the yellow LED comes on without delay in case of damping in the enable zone� ≈ 0 s Signal Power Close range ...
9.5 Response times (Without response time of the monitoring unit) Response time on safety request (removal from the enable zone) ≤ 20 ms Response time when approaching the close range ≤ T (non safety-related zone) Response time when approaching the enable zone (enable time) typ�...
9.6 LED display Operating status Sensor signals Signal No voltage supply Power Signal Undervoltage Power Signal Overvoltage Power Signal Output switched off (safe state), target outside the Power enable zone (operating mode) target in the enable zone (adjustment mode) Signal Output switched, target in the enable zone Power (operating mode) Signal...
10 Scale drawing LED: signal (yellow); power (green) 11 Technical data GM505S GIMC-4035-US Rectangular plastic M12 connector Enable zone: 10���20 mm Conforms to the requirements of: EN ISO 13849-1: 2008 category 4 PL e, SIL 3 (IEC 61508) Operating voltage 24 V DC (19�2���30 V) Short-circuit protection Reverse polarity protection Current consumption...
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Response time response time on safety request (removal from the enable zone) ≤ 20 ms Response time when approaching the enable zone (enable time), typ� 100 ms, ≤ 200 ms Power-on delay time Safe switch-off distance s 35 mm Operating mode continuous operation (maintenance-free) EMC / vibration, shock according to IEC 60947-5-2...
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Wiring diagram (BN) +24 V (WH) (BU) (BK) safety relay or PLC to EN 61131-2 Core colours: BK: black BN: brown BU: blue WH: white The core colours (BN, BK, BU, WH) apply to the use of ifm sockets� Remarks: *) Mission time T = 10 years...
12 Troubleshooting LED display → 9�6 Problem Possible cause Troubleshooting No LED display No voltage supply Apply voltage Power LED flashes • Undervoltage Correct the voltage and sensor does not • Overvoltage (→ 11 Technical data) switch Power LED off and Internal or external fault •...
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15 Terms and abbreviations Cat� Category Category Classification of the safety-related parts of a controller as regards their resistance to failures� Common Cause Failure Diagnostic Coverage MTTF Mean Time To Dangerous Failure Probability of (dangerous) (PFH Failure per Hour Performance Level PL to EN ISO 13849-1 Safety Integrity Level SIL 1-4 to IEC 61508 Programmable Logic Controller...
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