GI701S - Inductive sensor IFM - Free user manual and instructions

USER MANUAL GI701S IFM

UK English According to the machine directive 2006/42/EC the original operating instructions and a translation of these operating instructions into the language or languages of the EU user country must be provided when a unit or protective system is put into operation within the member countries of the European Union (EU). If no operating instructions or EC declaration of conformity is supplied with this product in the language of the EU user country, these can be requested from your dealer (see delivery note) or manufacturer (see cover sheet / back). Only qualified personnel is allowed to set up the product. Furthermore, we expressly point out that any liability is excluded resulting from putting the unit into operation without the corresponding operating instructions in the language of the EU user country.

2.1 Safety-related requirements regarding the application ..................................4

5.2 Protection against simple defeating ...............................................................7

1 Preliminary note The instructions are part of the unit. They are intended for authorised persons ac- cording to the EMC, Low Voltage and Machinery Directives 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. Follow the safety instructions.

• Cross-reference Important note Non-compliance can result in malfunction or interference. Information Supplementary note. LED on LED off LED flashes (2 Hz) LED flashes quickly (5 Hz)

1.2 Warning signs used

WARNING Warning of serious personal injury. Death or serious irreversible injuries may result.4 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 rea- son note all remarks on installation and handling given in this document. Also adhere to the safety instructions for the operation of the whole installation.

• In case of non-observance of notes or standards, especially when tampering with and/or modifying the unit, any liability and warranty is excluded.

If the sensor is damaged, the safety function cannot be guaranteed.

Errors caused by damage cannot be detected by the sensor.

• The unit must be installed, connected and put into operation by a qualified electrician trained in safety technology

• The applicable technical standards for the corresponding application must be complied with.

• For installation the requirements according to EN 60204 must be observed.

In case of malfunction of the unit please contact the manufacturer. T ampering with the unit is not allowed.

• Disconnect the unit externally before handling it. Also disconnect any indepen- dently supplied relay load circuits.

After installation, maintenance or repair of the system perform a complete func- tion check.

Use the unit only in specified environmental conditions (→ 10 T echnical data). In case of special operating conditions please contact the manufacturer

Use only as described below (→ 4).

2.1 Safety-related requirements regarding the application

It must be ensured that the safety requirements of the respective application cor- respond to the requirements stated in these instructions.5

WARNING Failure of the safety function When used outside of the defined environmental conditions, the safety-related function of the sensor cannot be guaranteed. ► Use only in accordance with the defined environmental conditions (→ 10 Technical data). Use of the sensor in the vicinity of chemical and biological media (solid, liquid, gaseous) as well as ionising radiation is not permitted. Observe the following requirements: ► Take measures to avoid metallic objects being placed on the sensing face unintentionally. ► Adhere to EN 14119 for interlocking devices associated with guards. ► 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. ► Replace damaged units. 3 Items supplied 1 fail-safe sensor GI701S with 2 M30 fixing nuts, 1 original operating instructions GI701S, ident no. 11491856. If one of the above-mentioned components is missing or damaged, please contact one of the ifm branch offices. 4 Functions and features The fail-safe inductive sensor GI701S 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

. (→ 10 Technical data). Also observe the notes on installation of the sensor (→ 6 Installation). The fail-safe inductive sensor is a proximity device with defined behaviour under fault conditions (PDDB) to IEC 60947-5-3.6 The fail-safe sensor conforms to Performance Level e according to EN ISO 13849-1 as well as to the requirements SIL 3 to IEC 61508 and meets SILcl 3 to IEC 62061. The unit corresponds to the classification I2A30SP2 to IEC 60947-5-2 for non- flush installation (→ 6 Installation). The fail-safe inductive sensor has been certified by TÜVNord. 5 Function "0" "1" 1: dual LED: signal (yellow); power (green) 2: close zone 3: enable zone 4: safe switch-off distance s

The outputs (OSSD) are only enabled when a damping target is present in the en- able zone. Outside this enable zone the outputs remain switched off. The safe switch-off distance s

• is > 30 mm. The enable zone is different if damping elements which deviate from the standard target plate in terms of material, form and size are used. Enable zone for selected materials*: Material Enable zone FE360 (= mild steel) 6 p. 12
• mm Stainless steel 3.8 p. 8
• .8 mm AIMg3G22 0.7 p. 4
• .8 mm CuZn37 1 p. 5
• .2 mm Copper 0 .7 mm7 p. 3

• Typical values for damping with a reference target of 45 x 45 x 1 mm and non-flush installation to IEC 60947-5-2 at an ambient temperature of 20 °C. Depending on the characteristics of the damping element there may be no close zone.

5.2 Protection against simple defeating

The fail-safe sensor reacts to metal objects, e.g. the frame of a safety door. Other metal objects that are not intended to enable the sensor must not be allowed to enable the fail-safe sensor unintentionally. ► Take measures to prevent metal objects, except the designated target, from being placed on the sensing face or in the enable zone unintention- ally. In addition, the sensor has the following switching characteristics to make simple defeating of its safety function more difficult:

1. By slowly introducing a metallic object into the enable zone, the outputs are

immediately switched, but displayed by the LED with a delay of approx. 3 s (→

9.2.1 Delayed switching of the LED). By doing so, the object is generally in the

close range before the LED indication is lit. The technical instructions concern- ing the restart of the installation must be observed.

2. If the object remains in the close zone for over approx. 2 s, the outputs are

completely disabled and no longer enabled in case of damping in the enable zone. If the object stays in the close range for longer than approx. 5 s, the set- ting aid is activated (→ 8.1). Release of the enable zone can be carried out

• either by undamping (> 30 mm) for a time of more than 2 s

• or by a voltage interruption (→ 8.3 Deactivate setting aid).8 6 Installation The unit can be non flush mounted according to IEC 60947-5-2, type I2A30SP2. ► Ensure the unit cannot work loose (tightening torque ≤ 50 Nm). ► Adhere to the installation conditions in accordance with the figures 1 to 3:

► Tighten the socket according to the manufacturer's indications. Observe the tightening torque for the ifm socket (e.g. EVxxxx: 0.6...1.5 Nm). Flush installation of the fail-safe sensor is not permitted since this can result in an increase of the sensing range up to enabling of the outputs (OSSDs). 7 Electrical connection Wiring diagram → 10 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. This voltage may vary between 19.2 V and 30 V incl. 5 % residual ripple to EN 61131-2. In case of one fault the supply voltage must not exceed 60 V DC for more than 0.2 s up to a max. value of 120 V DC. (This requires the safe separa- tion between power supply and transformer.)9

For easy and reliable installation the sensor features an optical setting aid to visualise the enable zone.

Signal Power The setting aid is activated by placing a metal object in front of the fail-safe sensor (close range). After approx. 5 s the yellow LED starts to flash: the setting aid is active. While this mode is active, the output remains in the safe state ("0"). 1: close zone 2: enable zone

8.2 Determine the enable zone

When the setting aid is active, the enable zone can be determined by moving the target (or the sensor if the target is fixed).

Signal Power Signal Power Signal Power As soon as the target enters the en- able zone, the yellow LED goes out. If the target is just outside the enable zone in either direction the LED starts to flash again. 1: close zone 2: enable zone10

If the sensor is undamped for more than 2 s (> 30 mm), the setting aid is switched off and the yellow LED goes out. This can also be achieved by power off. 1: close zone 2: enable zone 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 or A2 (OSSDs) is switched off (zero-current state: logic "0"). If one of the outputs A1 or A2 is switched off, the subsequent safety-related logic unit must bring the complete system into the state defined as safe.

9.1.2 The switched state

If the damping element is in the enable zone and if there is no sensor error, both outputs A1 and A2 (OSSDs) are enabled (logic "1").

9.1.3 Output characteristics

The output characteristics are compatible with the input characteristics to EN 61131-2 type 1 or 2:11

9.1.4 Cross fault / short circuit

• A cross fault between both outputs (A1 and A2) is detected by the fail-safe sensor and results in the outputs (OSSD) being switched off at the next safety request. The outputs A1 and A2 remain switched off until the error has been removed or a voltage reset has been carried out.

• A cross fault (short circuit) between one of the two outputs (A1 or A2) and the supply voltage results in the other output (A2 or A1) being switched off in case of a safety request.

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. In any case, the outputs switch on without delay. In case of undamping the outputs switch off and the yellow LED goes out without delay. In case of damping in the close range the outputs switch off immediately whereas the yellow LED goes out with a delay of approx. 2 s. When the LED goes out the outputs are maintained in the safe state ("0"). Thus, switching on again in the enable zone is not possible. Enabling is done by un- damping (> 30 mm) of more than 2 s or by interrupting the voltage (→ 5.2 Protec- tion against simple defeating).12

9.2.1 Delayed switching of the LED

Signal Power If the target was away from the sensor for more than approx. 2 s (> 30 mm), the yellow LED goes on with a delay of approx. 3 s in case of damping in the enable zone. This is also the case if the target is in the enable zone when the voltage is switched on. 1: close zone 2: enable zone

9.2.2 Switching of the LED without delay

Signal Power If the target was away from the sen- sor for less than 2 s (> 30 mm), the yellow LED comes on without delay in case of damping in the enable zone. 1: close zone 2: enable zone

except for the first start-up13

Response time on safety request (removal from the enable zone) ≤ 50 ms Response time when approaching the enable zone (enable time) typ. 100 ms ≤ 200 ms Risk time / response time for safety-related faults ≤ 100 ms Permissible dwell time in the close range < 2 s Delay time to activate the setting aid (→ 8.1) approx. 5 s Dwell time in the undamped state (> 30 mm) to return into the operating mode (→ 8.3 Deactivate setting aid) approx. 2 s Simultaneity of switching on and off of the outputs in case of a safety request ≤ 50 ms Test pulse duration t i_max on A1/A2(1) max. 1 ms Test pulse interval T

(OSSD) Signal Power No voltage supply Both outputs switched off 0 0 Signal Power Undervoltage 0 0 Signal Power Overvoltage Both outputs switched off 0 0 Sensor fault (→ 11 Troubleshooting) One output or both outputs switched off

Signal Power a) Operating mode: damping element at safe switch-off distance from the sensor (> 30 mm) b) Setting aid: damping element in the enable zone Both outputs switched off 0 0 Signal Power Setting aid: damping element in the enable zone or in the immediate vicinity of the enable zone Both outputs switched off 0 0 Signal Power Operating mode: damping element in the enable zone Both outputs enabled 1 115

10 Technical data [V] [V] [mA] [V] [mA] [nF] [mm] [mm] [s] [ms] Product characteristics Fail-safe inductive sensor Metal thread M30 x 1.5 M12 connector Enable zone 6...12 mm; [nf] non-flush mountable Complies with the requirements: EN ISO 13849-1: 2015 category 3 PL e IEC 61508: SIL 3 IEC 62061: SILcl 3 Application Type of operation continuous operation (maintenance-free) Electrical data Electrical design DC PNP Operating voltage 24 DC (19.2...30 DC) Rated insulation voltage 30 Current consumption < 30 Protection class III Reverse polarity protection yes Outputs Output function 2 x OSSD (A1 and A2) Output data Interface type C class 0 Output voltage at 24 V compatible with EN 61131-2 inputs type 1, 2, 3 Voltage drop < 2.5; (100 mA) Current rating 100 Short-circuit protection yes Max. capacitive load CL_max 20 Range Enable zone 6...12 Safe switching off distance s(ar) 30 Reaction times Power-on delay time 5 Response time to safety request 5016 [ms] [ms] [°C] [K/min]

• [kPa] [m] [h] [1/h] [kg] Response time when approaching the enable zone (enable time) 200 Risk time (response time for safety -related faults) 100 Environment Applications Class C to EN 60654-1 weatherproof application Ambient temperature -25 p. 70
• , for service life 87600 h 10 p. 40
• , for service life 175200 h Rate of temperature change 0.5 Max. relative air humidity 5 p. 95
• , briefly 5 p. 70
• , permanently Air pressure 80 Height above sea level 2000 Ionising radiation not permissible Salt spray no Protection IP 68 / IP 69K Tests / approvals EMC p. 106

EN 61000-4-2 ESD: 6 kV CD / 8 kV AD EN 61000-4-3 HF radiated: 20 V/m EN 61000-4-4 Burst: 2 kV EN 61000-4-6 HF conducted: 10 V EN 61000-4-8: 30 A/m EN 55011: class B Shock resistance IEC 60947-5-2 Vibration resistance IEC 60947-5-2 Safety classification Mission time TM 175200, (20 years) Safety-related reliability PFHd 1E-08 Mechanical data Mounting non-flush mountable Housing materials stainless steel 316L / 1.4404; PBT Weight 0.255 Displays / operating elements Display LED yellow (signal), LED green (power) Electrical connection Connection M12 connector; Gold-plated contacts Wiring 1: Safety-related logic unit17

[piece] Accessories Accessories (included) 2 lock nuts Remarks Remarks Unless stated otherwise, all data refer to the 45x45x1 mm reference target plate to IEC 60947-5-2 (FE360 = mild steel) over the whole temperature range. Pack quantity 1 ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — GB — GI701S-04 — 12.12.2017 11 Troubleshooting LED display → 9.4 Problem Possible cause Troubleshooting No LED display No voltage supply Apply voltage Power LED flashes and sensor does not switch

• Overvoltage Correct the voltage (→ 10 Technical data) Sensor does not switch, not even after undamping and redamping Sensor was brought into the safe state (logic "0"). Cause:

• cross fault between both outputs A1 and A2

• cross fault between one output (A1 or A2) and the supply voltage

• error in the sensor detected

• Remove the cross fault

• Replace the unit No close zone Due to its characteristics (material, form, size), the damping element displaces the enable zone until directly in front of the sensing face If possible, change the material, form or size of the damping element (→ 5.1 Enable zone) 12 Maintenance, repair and disposal If used correctly, no maintenance and repair measures are necessary. Only the manufacturer is allowed to repair the unit. After use dispose of the unit in an environmentally friendly way in accordance with the applicable national regulations.18 13 Terms and abbreviations OSSD Output Signal Switch Device PDDB Proximity devices with defined behaviour under fault condi- tions PFH (PFH

Probability of (dangerous) Failure per Hour PL Performance Level PL to EN ISO 13849-1 SIL Safety Integrity Level SIL 1-4 to IEC 61508. The higher the SIL, the lower the probability that a safety function will fail. SIL

Safety Integrity Level claim limit According to IEC 62061