Instruction manual ESD3 switching units
Contents
1. Wiring example of a three phase drive with control relay 1 Note the contactors K1 and K2 must be designed in a way that welding of the contacts is recognized by K1 and K2 and does not lead into a loss of safety EJ Periodical Checks and Fault Finding The correct functioning of the safety system must be checked periodically monthly or accord ing to overruling regulations The sensor and wiring connections must also be checked for mechanical damage Proceed as follows if the function is not assured based on the wiring in the circuit diagram and both yellow or red LEDs light up at the same time 1 Press reset button min 1 sec 2 Check all sensors to determine if activated or damaged 3 Check sensor resistance on terminals 1 2 and 3 4 8 2 kOhm 4 Repeat commissioning There is a unit fault if both red LEDs continue to light up afterwards gt Return the unit for checking If only one yellow or red LED lights up gt Return the unit for checking Safety Output Relay lt 50 ms Temperature Range Operation 20 C to 55 C Storage 20 C to 80 C Humidity max 80 relative no condensation allowed If not mentioned ratings are required ask for them at the manufacturer For 24 VACDC supply voltage must be obtained from a safety trafo according to IEC742 The wiring must be protected against mechanical damage For fur2. Instruction manual ESD3 switching units EM Safety Instructions e The assembly commissioning modifications and extensions may only be IN completed by an experienced electrician e Before commencing work remove the power supply from the units installations e During the operation of electrical components components are connected with dangerous voltages e g in the case of a short circuit hot and ionised gases can be emmited protection covers are not to be removed e Pay attention to all local relevant electrical safety regulations e Disregard of the safety regulations can cause death severe injuries or extensive damage e Keep the these operating instructions in a safe place for later use Before commencing the installation or assembly complete the following safety precautions Check the voltage data on the type plate of the switching unit A e Remove the power supply from the units installation e Ensure that the units installations can not be switched on e Determine that the power supply is disconnected Ground the phases and short circuit Separate or cover neighbouring components which are connected to the power supply e Cover the unit during assembly Foreign particles e g borings from drilling can the damage the unit e Protect the unit with a housing against contamination or aggressive environments Limited protection against accidental contact 2 Product Description ESD3 switching units are used f
3. be between 7 5 and 9 0 kOhm with a non activated sensor typical 8 2 kOhm e Check that the power supply is in accordance with the value indicated on the type plate of the unit e f one or more sensors are activated both yellow LED s Safety Function illuminate and both signal output relay de enegise The sensors must now be activated at various positi ons whereby both yellow LED s must illuminate each time The signal output relays remain de energised e Push the external reset button ESD3 05 05C 06 09 minimum 1 second e f a terminal of the sensor input e g 1 opened and the sensor connection is disconnected the sensor output relays will de energise and the red LED s System Error illuminate The fault indicator contact opens respectively closes with ESD3 C e f the terminal is subsequently closed the fault condition remains until the external reset button is pressed ESD3 05 05C 06 09 or the power supply is disconnected for a few seconds EJ Assembly and Removal The switching unit is designed to be installed on a horizontally mounted mounting rail a o E N Assembly A Place the unit 1 at a slight angle with the guides 2 on the rail 3 Rail 35 mm according to EN 50022 B Push the unit 1 onto the rail 3 until the lock 4 Removal C Place a screwdiver 5 on the red lock D Unlock the unit by turning or levering the screwdriver E Lift the unit and rem
4. ng on type 230 VAC 10 Frequency Range 50 60 Hz 45 66 Hz Power consumption max 5 VA Duty Cycle 100 Fastening 35 mm mounting rail acc to EN 50022 Safety Output Relay Utilization category AC 1 250 V 2 A 500 VA acc to EN60947 4 1 approx 300000 switchings DC 1 24V 2 A 48W approx 700 000 switchings Utilization category AC 15 250 V 2 A 500 VA acc to EN60947 5 1 approx 130 000 switchings DC13 6 switchings DC 13 24V 2 A 48W minute approx 70 000 switchings Contacts positively driven relays AgCuNi Operating Life mechanical 50 million switchings P 1 l Sensor 1 maa Ftp 2 T 4 13 3 15 s Sensor 2 ee T p t Le Wi N Wiring example for a one phase drive without control relay Fuse Protection acc to EN60947 5 1 2 A slow Status Relay Switching Capacity 24VDC 1A resistive load 30VAC 1 A resistive load Indicators Operation Green Error Red sensor resp system error Safety Switch off Yellow sensor Reaction Time uf 2 13 1 3 L i Sensor 1 2 o l s t 4 13 30 i i 15 ao 2 t Sensor 2 be 4 Machine a T control
5. ntact Fault contact Signalling contact auto external SM c D Sensor not Sensor not atus actuated actuated relay contact closed when Sensor Sensor actuated actuated Fault Fault De energised De energised BIRCHER REGLOMAT 2 2 Function Connected sensors have a terminal resistance of 8 2 kOhm and are monitored for changes in the continously flowing no load current In the non activated condition all relays are energised When one or more sensors are activated e the total resistance of the activated sensor system sinks towards zero ohm e the value falls below the defined threshold e the safety relay is de energised e the yellow LED s illuminate When an Error occurs in the sensor circuit cable breakage sensor malfunction e the total resistance of the corresponding sensor system rises e the defined switching limit is exceeded e the safety relay is de energised the red and yellow LED s illuminate The switching unit is reset as follows e by pressing an external reset button ESD3 05 05C 06 09 gt external reset e as soon as the sensor is no longer actuated ESD3 03 03C 04 08 gt auto reset e when the electrical power supply is interrupted The recovery time is lt 1 sec then the green LED lights up EJ Commissioning e t is recommended that the resistance of the sensor is measured on the terminals 1 and 2 as well as 3 and 4 This should
6. or monitoring pressure sensitive protective devices from Bircher Reglomat AG for contact mats acc to EN 1760 1 for safety edges acc to EN 1760 2 They meet the requirements of standard EN 954 1 for protective equipment up to safety category 3 if the drive is directly connected to the ESD3 The ESD3 is fail safe single fault and has two input channels with redundant evaluation Each channel controls a positively driven relay During each switching operation the relays est themselves by means of contact feedback 45 OO000000 Plug in terminals with m UsUsUsUsUaUnUsU cage clamps Tl2TsT4TsTst71s BIRCHER REGLOMAT O Betrieb O terehi a Stick on labels in the benan A a gt following languages O apna ESD3 lt Sai en fr it es sv soln 2s pase falJal Jal Jalz al al la Ja a Leer IOOOOO00O 105 2 1 Configuration variants The ESD3 variants are distinguished firstly by their reset function and secondly by the con figuration of the status relay contact This can be implemented off load both as open and closed It is not a safety contact but is exclusively used for transmitting information It is not monitored for failure and must never be used for safety shutdown in any form whatsoever Each type is available in three voltage supply variants 24 V AC DC 115 V AC 230 V AC Reset Status relay Signalling contact Fault co
7. ove from the rail E Connection The maximum length of the sensor with cable must not exceed 50 metres Maximum surface area 5 m2 If multiple sensors are used they have to be connected in series The last sensor equipped with resistor 8 2 kOhm lf only one sensor input is used channel 2 must be jumpered provided resistance 8 2 kOhm 1 otherwise a fault signal is generated Bircher Reglomat AG CH 8222 Beringen Switzerland Phone 41 0 52 687 11 11 Fax 41 0 52 687 12 10 Subject to change without notice 6 Block Diagram and Connection EJ Technical data p e12 Sensori en a ae eee ensor 2 13 15 3 Sensor2 o l H HH 4 I Terminal Terminal 1 Signal Sensor 1 9 Signal Sensor 1 10 Signal Sensor 2 11 Signal Sensor 2 12 External Reset 13 External Reset 14 Status Relay 15 Status Relay 16 Supply Voltage Supply Voltage Safety Output Relay 1 Safety Output Relay 1 Safety Output Relay 2 Safety Output Relay 2 Versions with automatic reset have this function integrated in the circuit Control of External Contactors Housing DIN ABS red black Isolation Class IP30 IEC 529 Protection Class IP54 Weight max 250 gramm depending on type Power Supply 24 VACDC 10 acc to EN60204 1 115 VAC 10 dependi
8. ther information on using an ESD3 switching unit as a safety system with contact mats or edges please request the relevant information from one of our sales offices EJ Warranty and Liability 1 The warranty and liability of Bircher Reglomat AG are based on the sales contract 2 The warranty and liability shall expire prematurely should the client or third parties not use and or operate the product in compliance with existing operating instructions should incorrect changes or repairs be made by the client or third parties should the client or hird parties when a fault has occurred not take suitable steps at once for a reduction of possible damage losses and offer Bircher Reglomat AG a chance for remedying the said ault 3 The warranty and liability shall exclude any damage for which there is no proof that it is due to poor materials faulty construction poor workmanship and any damage caused by other reasons for which Bircher Reglomat AG cannot be held liable 4 No liability can be assumed for any consequential damage provided this is not governed otherwise by applicable product liability laws and regulations 5 Warranty claims made against the seller on the basis of the sales agreement are not affected by these regulations 6 For the benefit of its customers Bircher Reglomat AG constantly develops its products further Bircher Reglomat AG reserves the right to make changes to any of the products described in this document wi
9. thout prior notice Bircher Reglomat AG CH 8222 Beringen Switzerland Phone 41 0 52 687 11 11 Fax 41 0 52 687 12 10 Subject to change without notice
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