13 Maintenance, repair and disposal ��������������������������������������������������������������������19 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�...
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�...
4 Functions and features The fail-safe inductive sensor GM705S detects metal without contact� Safety function SF: The safe state (output stage switched off; logic "0") is achieved when undamping greater than or equal to the safe switch-off distance s (→...
5 Function fail-safe sensor 2x LED: Signal (yellow); power (green) close range enable zone safe switch-off distance s target 5.1 Enable zone The outputs (OSSD) are only enabled when a damping target is present in the enable zone�...
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 Installation 6.1 Alignment of the sensing face The socket is rotatable: 6.2 Installation conditions The unit is non-flush mountable according to IEC 60947-5-2, type I2C40SP2� ► Ensure the unit cannot work loose� ► Tighten captive screws with 1 Nm� ► Limit the use of oblong holes to the initial setting�...
► Adhere to the installation conditions in accordance with the figures 1 to 4: 7 Electrical connection Wiring diagram (→ 11 Technical data) ► Disconnect power� Also disconnect any independently supplied relay load circuits� ► Supply voltage: Connect L+ to pin 1 and L- to pin 3 of the connector� The nominal voltage is 24 V DC�...
8 Set-up 8.1 Activate adjustment mode For easy and reliable installation the sensor can be put in the adjustment mode� This is done by placing a metallic object directly in front of the sensing face of the fail-safe sensor (close range)� After approx� 5 s the yellow LED starts to flash: The adjustment mode >...
8.3 End adjustment mode If the sensor is undamped for more than 2 s (> 45 mm), the adjustment mode is switched off and the yellow LED goes out� This can also be achieved by power off� < 2 s Signal Power >...
9 Operation 9.1 Switching state of the outputs 9.1.1 The safe state The safe state is when at least one of the outputs A1 and A2 (OSSD) is switched off (zero-current state: logic "0")� If one of the outputs A1 and A2 is switched off, the subsequent safety-related logic unit must bring the complete system into the state defined as safe�...
9.2 Operating mode The length of the preceding undamping determines whether the yellow LED comes on with a delay (→ 9�2�1) or without delay (→ 9�2�2) when a target moves into the enable zone� The outputs definitely switch on without delay� In case of undamping the outputs switch off and the yellow LED goes out without delay�...
9.2.2 Switching of the LED without delay If the target was away from the Undamping < 2s: sensor for less than 2 s (> 45 mm), the yellow LED comes on without delay in case of damping in the enable zone� ≈ 0 s Signal Power close range ...
9.4 LED display LED Operating status Outputs A1 A2 status (OSSD) (OSSD) no voltage supply both outputs Signal switched off Power undervoltage Signal Power overvoltage both outputs Signal switched off Power target outside the enable both outputs Signal zone (operating mode) or in switched off Power the enable zone (adjustment...
10 Scale drawing 11 Technical data GM705S GIMC-4045-US/2OSSD Fail-safe inductive sensor Rectangular plastic M12 connector Enable zone: ≤ 4 ��� ≥ 20 mm Meets the requirements of: EN ISO 13849-1: 2008 category 4 PL e, SIL 3 to IEC 61508: 2000, SILcl 3 to IEC 62061 Operating voltage 24 V DC (19�2���30 V)
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Rated insulation voltage 30 V Output voltage at 24 V compatible with EN 61131-2 inputs type 1, 2 and 3 Response time response time on safety request (removal from the enable zone): ≤ 50 ms response time when approaching the enable zone (enable time): ≤...
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Display LED yellow (Signal); LED green (Power) Connection M12 connector, gold-plated contacts Wiring diagram (BN) +24 V (WH) (BU) (BK) Evaluation unit or PLC Core colours: BK: black BN: brown BU: blue WH: white Comments Unless stated otherwise, all data refer to a 60 x 60 x 1 mm reference target plate to IEC 60947-5-2 (FE360 = mild steel) over the whole temperature range�...
12 Troubleshooting (→ 9�4 LED display) Problem Possible cause Troubleshooting No LED display No voltage supply Apply voltage Power LED flashes and • Undervoltage Correct the voltage sensor does not switch • Overvoltage (→ 11 Technical data) Sensor does not switch, Sensor was brought into the •...
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14 Approvals / standards The following standards and directives have been applied: • 98/37/EC European Machinery Directive • 2006/42/EC European Machinery Directive • 2004/108/EC EMC Directive • EN ISO 13849-1 PL e (2006) Safety of machinery - Safety-related parts of control systems •...
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15 Terms and abbreviations Common Cause Failure Diagnostic Coverage MTTF Mean Time To Dangerous Failure OSSD Output Signal Switching Device Probability of Failure per Hour Performance Level PL to EN ISO 13849-1 Safety Integrity Level SIL 1-4 to IEC 61508� The higher the SIL the lower the probability that a safety function will fail�...