GESTRA NRS 1-41 Original Installation Instructions Download

Page: 34 / 36

Decommissioning

Danger

The terminal strips of the equipment are live during operation.

This presents risk of severe cases of electric shock!

Cut off power supply to the equipment before mounting or removing the terminal strips or

the housing cover!

Disposal

Dismantle the equipment and separate the waste materials according to the material specification.

Electronic component parts such as the circuit board must be disposed of separately!

For the disposal of the control unit observe the pertinent legal regulations concerning waste disposal.

Summary of Contents for NRS 1-41

Page 1: ...1 E N English Level Switch NRS 1 41 Original Installation Instructions 810830 04 ...

Page 2: ...y the Manufacturer 5 Important Notes Page Explanatory Notes Scope of supply 6 Description 6 Function 6 Associated components 7 Design 7 NRS 1 41 14 Note 14 Tool 14 Key 14 Example of installation 15 Installation NRS 1 41 8 9 Corrosion resistance 9 Name plate Marking 9 Dimensions 10 Technical Data NRS 1 41 11 Key 13 Design NRS 1 41 12 Key 13 Functional Elements ...

Page 3: ...ns 19 Key 19 CAN bus wiring diagram 20 Attention 20 Note 21 Tool 21 NRS 1 41 25 Note 25 Contents continued Commissioning Page NRS 1 41 25 Test Cycle NRS 1 41 25 Operation Bus cable 21 Node ID 22 Factory setting 23 Establishing changing node ID 23 Attention 23 Code switch settings 24 Basic Settings NRS 1 41 26 High water level alarm for water limiter 26 Note 26 Alarm ...

Page 4: ...dure for system malfunctions 29 Error message 1 30 Error message 2 31 Error message 3 32 Error message 4 32 Error message 5 33 Error message 6 33 System Malfunctions Declaration of conformity 35 Annex Contents continued Page Danger 27 Fault finding list for troubleshooting 27 Operational Malfunctions ...

Page 5: ...rmed by adequately trained persons who have a recognized level of competence ATEX Atmosphère Explosible According to the European Directive 2014 34 EU the equipment must not be used in explosion risk areas Attention The name plate indicates the technical specification of the equipment Do not commission or operate equipment without a name plate For details on the conformity of our equipment accordi...

Page 6: ...cking routine tests every 3 seconds the integrity of the system and its safety functions with a malfunction in the switching controller resulting in immediate boiler shutdown When the CAN bus line and consequently the data transmitting cycle are interrupted the controller sends a visual signal to indicate a faulty condition and the relays are instantaneously de energized fail safe position The swi...

Page 7: ...l electrode NRG 17 41 PN 63 NRG 19 41 Level electrode NRG 19 41 PN 160 Design NRS 1 41 Enclosure of insulating material with terminals for installation in control cabinets The terminals are externally accessible Snapping onto a 35 mm standardised supporting rail DIN EN 50022 External dimensions 73 x 100 x 118 ...

Page 8: ...aneous with high level timed malfunction signal max contact rating for switching voltages 24 V AC 115 V AC and 230 V AC DC 100 mA resistive Relay de energizing delay Output High level alarm set to 3 sec default or 15 sec 25 sec internally connected for relay contact test Indicators and adjustors 4 pushbuttons Parameterisation TEST 1 red LED for High level alarm electrode 3 red LEDs Multifunction 1...

Page 9: ...onate black Weight Approx 0 8 kg 1 2 3 4 5 16 17 18 25 29 Steuergerät control device appareille de commande S 24V DC CAN BUS CH CL Tamb 55 C 131 F IN OUT CAN Bus 18 36 V DC IP 40 IP20 15 10 230V 10VA Betriebsanleitung beachten See installation instructions Voir instructions de montage Node ID ___ ___ ___ 8 7 L N N1 Sicherheitsstromkreis Protection circuit Circuit de securite N L Alarm extern 24 23...

Page 10: ...10 Technical Data continued Dimensions Fig 2 1 1 8 100 73 ...

Page 11: ...11 Design Fig 3 0 NRS 1 41 0 ...

Page 12: ...12 Functional Elements NRS 1 41 Fig 5 Fig 4 1 7 6 5 4 3 2 8 9 ...

Page 13: ... no function Malfunction alarm LED 3 no function Malfunction alarm LED 4 no function Malfunction alarm 2 LED Bus status 3 LED Power 4 Enter Test mode 5 Decrease 6 Increase 7 Program key 8 Two pole code switch no function 9 Ten pole code switch 0 Terminal strip Screws for terminal strip Housing Mounting rail TS 35 x 15 DIN EN 50022 ...

Page 14: ... rail 35 x 15 mm DIN EN 50022 2 Align switching controller Fig 7 Note n If an external measuring pot is used each level electrode type NRG 1 41 requires one switching controller type NRS 1 41 and one GESTRA monitoring unit SRL 6 40 0 Terminal strip Screws for terminal strip Housing Mounting rail TS 35 x 15 DIN EN 50022 Key ...

Page 15: ...15 Installation continued Fig 6 Example of installation 0 0 Fig 7 20 20 ...

Page 16: ...ates the cable length and size between the bus nodes The total power consumption must also be taken into consideration when selecting the conductor size The total power consumption is obtained from the number of bus nodes If the cable length between the steam boiler and the control cabinet exceeds 15 m we recommend that you fit a branching box that is resistant to electromagnetic interference stoc...

Page 17: ...einforced isolation acc to DIN EN 50178 or DIN 61010 1 or DIN EN 60730 1 or DIN EN 60950 safe isolation The power supply unit must be provided with an overcurrent protective device in accordance with EN 61010 1 Attention If a safety power supply unit e g SITOP smart 24 V 2 5 A is used for the voltage supply of the CAN bus do not tap the supply voltage from the terminals 1 and 5 of the GESTRA contr...

Page 18: ...18 Attention n Do not connect terminals 19 24 and 26 27 28 and 30 n Do not connect terminals 10 11 and 12 Wiring diagram Fig 8 Electrical Connection continued ...

Page 19: ... 18 V AC DC Other devices in the safety circuit Photo Mos output 24 V 230 V AC DC 100 mA With HW alarm instantaneous With malfunction alarm switched Terminating resistor 120 Ω RES 1 or RES 2 CAN bus line twisted pair control cable Pin 1 Screen a Pin 2 Power supply 24 V DC red b Pin 3 Power supply 24 V DC black c Pin 4 CAN data line CH white d Pin 5 CAN data line CL blue Key ...

Page 20: ... n To protect the switching contacts fuse circuit with T 2 5 A or according to TRD regulations 1 0 A for 72 h operation n If two or more system components are connected in a CAN bus system provide the first and the last device with a terminating resistor of 120 Ω Fig 10 Fig 11 n Note that in a CAN bus network only one high water level limiting system may be used n Do not interrupt the CAN bus netw...

Page 21: ...7 and 8 is cyclically openend and closed in order to ensure an optical distinction between High level signal output permanently closed and Malfunction shut down If ne cessary conncect terminals 7 and 8 externally to an indicator lamp Fig 8 Bus cable All level and conductivity controllers and associated electrodes are interconnected by means of a CAN bus using the CANopen protocol Every item of equ...

Page 22: ...RV 5 40 2 Limiter 3 Limiter 4 X X 1 X 2 X 3 X 4 6 7 8 9 10 Factory setting TRS 5 40 1 TRS 5 40 2 X 1 90 X 2 90 97 98 High level alarm NRS 1 41 NRG 16 41 Reserved Reserved Reserved X X 1 X 2 X 3 X 4 6 7 8 9 10 Factory setting Further components SRL 40 X sensor level limiter hi alarm 2 Factory setting ORT 6 98 Factory setting On off level control Reserved NRS 1 42 NRG 16 42 X 1 X X 1 19 20 21 Factor...

Page 23: ...trode NRG 1 41 Establishing changing node ID If several identical systems are to communicate in a CAN bus network set a different node ID for each system e g limiter controller etc In most cases the default GESTRA setting can be used To set code switches 8 and 9 detach the lower terminal strip 0 Attention n We recommend that you commission the CAN bus devices with the default factory setting n Do ...

Page 24: ... 6 S1 OFF 1 S2 ON 2 S3 ON 4 S4 OFF 8 S5 OFF 16 S6 OFF 32 S7 OFF 64 Node ID 12 S1 OFF 1 S2 OFF 2 S3 ON 4 S4 ON 8 S5 OFF 16 S6 OFF 32 S7 OFF 64 S8 S9 S0 Baud rate Cable length OFF ON OFF 250 kBit s 125 m ON ON OFF 125 kBit s 250 m OFF ON ON 100 kBit s 335 m ON ON ON 50 kBit s 500 m OFF ON ON 20 kBit s 1000 m ON ON ON 10 kBit s 1000 m ...

Page 25: ...malfunctions that may occur during the commissioning procedure refer to section System Malfunctions Commissioning Operation NRS 1 41 Press button briefly 1 s The test mode is activated for about 10 sec Be sure to press button or within these 10 sec Note The control circuit will be interrupted during the test cycle Press button for 3 sec LED 1 flashes rapidly and remains permanently illuminated aft...

Page 26: ... 1 remains permanently illuminated after the de energizing delay De energizing delay 3 sec default Alarm Note n The switching controller does not have its own lock out circuit The lock out function has to be provided externally n The signal output terminal 7 and 8 is instantaneously energized no delay of response in the event of an alarm NRS 1 41 ...

Page 27: ...e cases of electric shock Cut off power supply to the equipment before mounting or removing the terminal strips or the housing cover Equipment does not work malfunction message in control unit Fault In spite of correct wiring and commissioning of the equipment an error message is indicated Remedy Cut off power supply to the equipment Remove terminal strips and re attach them Re start system after ...

Page 28: ... n Failure of 24 V power supply unit or failure of external PSU A self test is performed in the control unit every 3 seconds and in the measuring sensor e g level electrode every 10 seconds Any error messages will be saved in the control unit during the self testing routine The error messages are stored in the control unit until the cause of the error has been eliminated During an error message th...

Page 29: ...ips in all Bus sensors Level electrode Conductivity electrode Pressure sensor Temperature sensor etc Step 3 Apply mains voltage to bus devices of the system e g NRS and NRG Step 2 Plug in terminal strip of the sensor of the system e g NRS and NRG electrodes System O K Detach terminal strips between bus devices of the system e g NRS and NRG System Fault Use fault finding list to identify the malfun...

Page 30: ...d down button LED 2 flashes slowly System Malfunctions continued Fault The max admissible temperature in the terminal box of the electrode has been exceeded Remedy Insulate electrode flange against heat radiation Fault The electronic circuit board of the level electrode is defective Remedy Replace electronic circuit board of the level electrode A B ...

Page 31: ...e identical Cut off power supply and restart system after 5 sec Fault The overall length of the bus line does not correspond to the baud rate setting Remedy Change baud rate settings of all bus based equipment Cut off power supply and restart system after 5 sec Fault In spite of correct wiring and commissioning of the equipment an interference signal is indicated Remedy The interference signal is ...

Page 32: ...tched mode voltage across terminal 25 the self test is not succesful Remedy Wire control unit as first device in the safety circuits and in accordance with wiring diagram ensure permanent voltage across terminal 25 Restart system Fault Potential voltage applied across terminal s 26 and or 30 Remedy Do not connect these two terminals Fault Temperature in control cabinet too high 60 C Remedy Observe...

Page 33: ...ck baud rate settings of all bus nodes The baud rates must be identical Cut off power supply and restart system after 5 sec Fault The overall length of the bus cable does not correspond to the selected baud rate Remedy Change baud rate settings of all nodes Cut off power supply and restart system after 5 sec Fault The electronic circuit board of the control unit is defective Remedy Replace control...

Page 34: ...equipment before mounting or removing the terminal strips or the housing cover Disposal Dismantle the equipment and separate the waste materials according to the material specification Electronic component parts such as the circuit board must be disposed of separately For the disposal of the control unit observe the pertinent legal regulations concerning waste disposal ...

Page 35: ...35 For your Notes ...

Page 36: ...8552 05 GESTRA AG Bremen Printed in Germany GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon 49 421 3503 0 Telefax 49 421 3503 393 E mail info de gestra com Web www gestra de Agencies all over the world www gestra de ...

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