IFM Electronic GM701S Original Operating Instructions

Original operating instructions

Fail-safe inductive sensor

GM701S

80236831 / 00 09 / 2016

Contents

1 Preliminary note �� 3

1�1 Symbols used ��3 1�2 Warning signs used ��3

2 Safety instructions ��4

2�1 Safety-related requirements regarding the application �� 4 3 Items supplied��5 4 Functions and features ��5 5 Function �� 6

5�1 Enable zone ��6

5�2 Protection against simple defeating ��7 6 Installation��8

6�1 Alignment of the sensing face ��8

6�2 Installation conditions ��8 7 Electrical connection �� 10 8 Set-up ��10

8�1 Setting aid �� 10

8�2 Determine the enable zone ��10

8�3 Deactivate setting aid �� 11 9 Operation �� 12

9�1 Switching state of the outputs ��12

9�1�1 The safe state �� 12 9�1�2 The switched state ��12 9�1�3 Output characteristics �� 12 9�1�4 Cross faults ��12

9�2 Operating mode �� 13

9�2�1 Delayed switching of the LED ��13

9�2�2 Switching of the LED without delay ��14 9�3 Response times �� 14 9�4 LED display ��16

10 Technical data �� 17 11 Troubleshooting ��19

12 Maintenance, repair and disposal �� 19 13 Terms and abbreviations �� 20

1 Preliminary note

The instructions are part of the unit� They are intended for authorised persons according 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�

1.1 Symbols used

► 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�

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 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� Tampering with the unit is not allowed�

• Disconnect the unit externally before handling it� Also disconnect any independently supplied relay load circuits�

• After installation, maintenance or repair of the system perform a complete function check�

• Use the unit only in specified environmental conditions (→ 10 Technical 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 correspond to the requirements stated in these instructions�

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 GM701S with premounted angle bracket,

Allen key for fixing the fail-safe sensor onto the angle bracket

1 1 original operating instructions GM701S, ident no� 80236831�

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 GM701S 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 Technical data)

�

Also observe the notes on installation of the sensor (→ 6 Installation)

�

(→ 10

The fail-safe inductive sensor is a proximity device with defined behaviour under fault conditions (PDDB) to IEC 60947-5-3�

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�

Depending on the type of installation the unit corresponds to the classification I1C40SP2 to IEC 60947-5-2 for flush installation as well as I2C40SP2 to IEC 60947-5-2 for non-flush installation (→ 6 Installation)�

The fail-safe inductive sensor has been certified by TÜVNord�

The unit is suited for applications up to 5 Hz�

5 Function

"1"

1: dual LED: signal (yellow); power (green) 2: close zone 3: enable zone 4: safe switch-off distance s 5: target

"0"

5.1 Enable zone

The outputs (OSSD) are only enabled when a damping target is present in the enable zone� Outside this enable zone the outputs remain switched off�

The safe switch-off distance sar 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) 10��15 mm Stainless steel 7�5��13�2 mm AIMg3G22 2�0��5�8 mm AI 99 % 1�4��5�0 mm CuZn37 2�3��6�2 mm Copper 0�8��4�3 mm

* 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 unintentionally�

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 concerning 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 setting 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)�

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