IFM Electronic GM701S Bedienungsanleitung

Original operating instructions

Fail-safe inductive sensor

GM701S UK

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

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�

12 Maintenance, repair and disposal��19

13 Terms and abbreviations��20

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 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 sar (→ 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�

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

"0"

"1"

1: dual LED: signal (yellow); power (green)

2: close zone

3: enable zone

4: safe switch-off distance sar

5: target

5.1 Enable zone

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 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 installa-

tion 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)�

6 Installation

6.1 Alignment of the sensing face

The socket is rotatable:

6 75

►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)�

6.2 Installation conditions

• The unit is non flush mountable in steel in accordance with IEC 60947-5-2,

type I2C40SP2� In addition one side of the unit can be mounted flush with

steel�

• The unit can be mounted flush with copper, aluminium and brass according to

IEC 60947-5-2, type I1C40SP2�

►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 5:

105

Angle mounting Channel mounting

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�)

8 Set-up

8.1 Setting aid

For easy and reliable installation the sensor features an optical setting aid to

visualise the enable zone�

300

> 5 s

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)�

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