1 Preliminary note The instructions are part of the unit� They are intended for authorised persons according to the EMC and low voltage 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�...
► The safety relay must only be used under the specified operating conditions and in accordance with use as prescribed below� 3 Items supplied • 1 G2001S safety relay • 1 copy of the operating instructions safety relay, reference 704576� If one of the above-mentioned components is missing or damaged, please contact...
4 Functions and features The G2001S safety relay is a redundant system and suited for use as muting relay in conjunction with 2 muting sensors� ifm electronic gmbh assumes no liability for the use of units made by external manufacturers�...
5.1.3 LED states MUT. FAIL GUARD MUT. yellow yellow yellow BREAK Description Switch-on test Object detected No object detected Muting active Override request FAIL GUARD/BREAK FAIL GUARD MUT. green yellow green BREAK Description Switch-on test Protected area interrupted, relay outputs deactivated Protected area clear, relay output deactivated, waiting for restart...
6 Installation Mount the unit on a DIN rail in a housing protected against dust and humidity (min� IP 54 - degree of soiling 2)� Leave enough space between the unit and the top and bottom of the housing to enable air circulation and to avoid excessive heating�...
After power on or a reset the unit carries out self diagnostic functions� After this self diagnosis the unit is ready for operation� 7.2 Automatic or manual operation / feedback contacts Automatic operation Automatic activation without monitoring� Automatic operation with monitoring of the feedback contacts Release is made when the feedback contacts are closed�...
Manual operation with monitoring of the feedback contacts Activate the relay outputs: The feedback contacts are closed ► Press and release restart (> 100 ms)� Consider the current flowing through the feedback contacts (→ 10 Technical data)� 1: Restart 2: Feedback contacts ►...
Muting lamp Prerequisite for the muting function is the connection of a muting lamp (0,5���5 W)� Muting activation To start the muting function a high signal (24 V) has to be applied to terminal 11� A continuous signal or a pulse > 1 s can be used� 7.4 Timeout Timeout is a time limit of the muting function�...
7.5 Override Do not short-circuit terminals 7 and 8� Override with continuous command ► Use a key-operated switch with spring return� The command pulse must be applied simultaneously to both terminals within 400 ms� 1: Key-operated switch Override with command pulse The command pulse must invert the condition of terminals 7 and 8 within 400 ms�...
7.7 Output circuit Connect the load ► Connect the load to be controlled to the relay outputs 23/24 or 12/22� For the output circuit, the G2001S uses two guided contact safety relays� 3,6 A ► Protect the output contacts with a slow-acting 3,6 A fuse�...
7.8 Overview Automatic operation with monitoring of the feedback contacts and timeout 30 s Sensor 1 0 V DC Sensor 2 Restart 24 V DC Timeout 1 n. c. Timeout 2 Input OSSD 1 MAN/AUTO Input OSSD 2 Override 1 n.
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Manual operation with monitoring of the feedback contacts and timeout 30 s Sensor 1 0 V DC Sensor 2 Restart 24 V DC Timeout 1 n. c. Timeout 2 Input OSSD 1 MAN/AUTO Input OSSD 2 Override 1 n. c. Override 2 K1/K2 feedback n.
8 Operating modes After new installation or change of the operating mode check the function of the entire safety system (safety relay and safety light curtains / light grids)� 8.1 Automatic operation If the safety relay is used in the automatic mode, monitored start is not possible� The safety light curtains / light grids automatically return to operation if the pro- tected area is clear, the relay outputs (OSSDs) are activated�...
Check if this function is compatible with the risk analysis of your machine and if additional measures have to be taken� The following components are necessary for the muting function: - G2001S safety relay - safety light curtain / safety light grid - 2 muting sensors - muting lamp (0,5���5 W)
To start the muting function a high signal (24 V) must be applied to terminal 11 (muting activation) for 1 s� Correct alignment of the muting sensors is imperative for the proper func- tion of the safety relay� 8.4.1 Alignment of 2 muting sensors 1: Muting sensor 1 4: Safety light curtain / safety light grid 2: Muting sensor 2...
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Muting ends after release of the muting sensors Muting sensor 1 Muting sensor 2 Time limit clear Protected area interrupted Muting Timer Muting enable Relay outputs Muting ends after the time limit (timeout 30 s) has elapsed Muting sensor 1 Muting sensor 2 Time limit clear...
8.5 Override Override means suspension of the safety function� It ensures a controlled restart to transport jammed material out of the protected area� WARNING During the whole override function access to the hazardous area is not protected by the safety light curtains / light grids. Death or serious irreversible injuries may result�...
8.5.2 Override with command pulse ► Press override button > Bridging the safety light curtains / light grids for max� 15 min� The function can be started again by activating the override button at the following conditions: - max� 30 subsequent override command pulses - max�...
10 Technical data G2001S Safety relay with relay outputs Meets the requirements of: EN ISO 13849-1 (2008) category 4 PL e, SIL 3 (IEC 61508), SIL 3 (IEC 62061) Electrical design relay Output function 2 safety-related normally open contacts (floating contacts, 2 A / 250 V);...
Fault of the external relay K1/K2 Wrong output configuration Configuration changed without restart ► make a restart Possible overload or wrong connection of the auxiliary output If the fault cannot be eliminated, switch off the entire machine and contact the ifm service hotline�...
• After use dispose of the unit in an environmentally friendly way in accordance with the applicable national regulations� 13 Tests/approvals The G2001S safety relay was tested and certified by TÜV Süd� The safety relay was developed and tested in accordance with, for example, the following direc- tives and standards: •...
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 Technical data and further information at www.ifm.com → Select your country → Data sheet direct:...
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