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NRA 1-3 / NRA 1-3 with CAN Bus interface

Technical Data

Supply voltage

230 V, 50 / 60 Hz

115 V, 50 / 60 Hz optional

Only

NRA 1-3 with CAN Bus interface

Supply voltage

24 V DC +/- 20 % via CAN Bus interface

Data exchange

CAN bus to ISO 11898, CANopen protocol

NRA 1-3 and NRA 1-3 with CAN bus interface

Fuse

external, slow-blow 200 mA

Power consumption

max. 5 VA

Inputs

16 inputs for measuring electrodes NRG 16-19, NRG 16-27, NRG 16-28

1 input for temperature sensor, e. g. TRG 5-53, measuring insert PT 100

max. length of connecting cables: 100 m

Output

1 volt free changeover contact, 4 A 24 V AC/DC, 115 V AC and 230 V AC

Inductive loads must be provided with interference suppressors (RC combinations) as specified by the

manufacture

Electrode voltage

12 V

Settings for banking-up of condensate

Difference between condensate and plant temperatures

dts

1 K to 100 K, adjustable in steps of 1 K

(mode 1 and 6)

Difference between condensate temperature and switchpoint "Banking-up of condensate"

dtC

1 K to 100 K, adjustable in steps of 1 K (mode 2 and 7)

Switchpoint "Banking-up of condensate" 0 °C to 255 °C,adjustable in steps of 5 K (mode 2 and 7)

Indicators and adjustors

1 three-digit seven-segment LED display, red, for indicating faulty steam traps and status and error

messages

3 LEDs for indicating banking-up of condensate, steam loss and malfunction in measuring electrode

3 pushbuttons for operating the equipment

1 ten-pole code switch for system configuration, node ID and baud rate setting

Versions

NRA 1-3a for wall mounting

NRA 1-3e for panel mounting

Housing material: ABS

Protection

NRA 1-3a: IP 65 to EN 60529

NRA 1-3e: Front: IP 65 to EN 60529, back: IP 00

Protection

NRA 1-3a: 2 (completely insulated)

Admissible ambient temperature

Max. 55 °C

Содержание NRA 1-3

Страница 1: ...1 Test Station NRA 1 3 NRA 1 3 mit CAN Bus Schnittstelle NRA 1 3 E N English Original Installation Instructions 818678 05 ...

Страница 2: ...A 1 3 NRA 1 3 with CAN Bus interface 6 Name plate marking 7 Dimensions NRA 1 3 8 Installation Test station NRA 1 3a 9 Test station NRA 1 3e 9 Note 9 Tools 9 Electrical connection Wiring diagram for test station NRA 1 3 and NRA 1 3 CAN 10 Key 11 Only for NRA 1 3 CAN Connection of supply voltage 12 Connecting line of measuring electrodes 12 Connecting line of temperature sensor for detecting the pla...

Страница 3: ...nsate mode 1 to 6 18 Setting banking up of condensate mode 2 to 7 19 Setting group temperatures in mode 1 and 6 20 Setting steam loss mode 1 to 4 22 Alarm messages 23 Alarm list maintenance interval and test mode 1 to 7 23 Malfunctions 24 Removing and disposing of the test station Safety note 25 Removing and disposing of the test station 25 Annex CAN bus telegram Directory of objects 26 PDO 27 Inf...

Страница 4: ...chieved a recognised level of competence Scope of supply NRA 1 3 1 Test station NRA 1 3 1 Installation manual or NRA 1 3 1 Test station NRA 1 3 with CAN Bus Interface 1 Installation manual ATEX Atmosphère Explosible According to the European Directive 94 9 EC the equipment must not be used in explosion risk areas LV Low Voltage Directive and EMC Electromagnetic Compatibility The equipment meets th...

Страница 5: ...efective the numbers of the faulty traps are indicated one after another If banking up of condensate steam loss or malfunction in measuring electrode is indicated an output relay for the collective alarm will also be energised When using the measuring electrodes NRG 16 27 NRG 16 28 you can set the switchpoint for the message Banking up of condensate as a function of the plant temperature that is d...

Страница 6: ...up of condensate Difference between condensate and plant temperatures dts 1 K to 100 K adjustable in steps of 1 K mode 1 and 6 Difference between condensate temperature and switchpoint Banking up of condensate dtC 1 K to 100 K adjustable in steps of 1 K mode 2 and 7 Switchpoint Banking up of condensate 0 C to 255 C adjustable in steps of 5 K mode 2 and 7 Indicators and adjustors 1 three digit seve...

Страница 7: ...orage temperature 20 70 C defrosting time of the de energized equipment before it can be put into operation 24 hours Relative humidity max 95 no moisture condensation NRA 1 3 Max admissible ambient temperature Manufacturer Safety note Equipment designation Electrical specification Protection Disposal note CE marking Spare part specification GESTRA AG Münchener Str 77 D 28215 Bremen Betriebsanleitu...

Страница 8: ...8 Technical Data Dimensions NRA 1 3 E 146 7 137 226 5 Fig 2 Test station NRA 1 3 a E 146 7 105 Fig 3 Test station NRA 1 3e Front panel cut out 236 x 151 226 5 continued ...

Страница 9: ...s temperature sensor set the operating mode and the number of the measuring channels see Commissioning in a single operation with the base part open Then close the base part and lock the left hinge Test station NRA 1 3e The housing of the test station NRA 1 3e is designed for panel mounting panel cut out 236 x 151 mm Place the equipment into the cut out of the panel To unlock the hinge and swing t...

Страница 10: ...0 9 8 7 6 5 4 3 2 NO Schaltwippe weiß L N NRA 1 3 NRA 1 3 CANopen Electrical connection Wiring diagram for test station NRA 1 3 and NRA 1 3 CAN Fig 4 NRG 16 27 28 Intermediate distribution frame Condensate Error e g TRG 5 53 Disconnecting switch NRG 16 19 9 Cable tie 8 0 4 3 1 CH CL CH CL 2 3 4 5 24V 24V 5 6 7 Condensate NRA 1 3 NRA 1 3 CAN Terminal 4 NRA 1 3 Terminal 5 NRA 1 3 1 Toggle switch whi...

Страница 11: ...king up of condensate 6 Channel 2 Banking up of condensate 7 Channel 3 Banking up of condensate 8 Channel 4 Banking up of condensate 9 Channel 5 Banking up of condensate 0 Channel 6 Banking up of condensate Channel 7 Banking up of condensate Channel 8 Banking up of condensate Mode 3 Channel 1 Steam loss Channel 2 Steam loss Channel 3 Steam loss Channel 4 Steam loss Channel 5 Steam loss Channel 6 S...

Страница 12: ...5 mm Max cable length between measuring electrode and test station NRA 1 3 100 m Please connect screen to connector Only for NRA 1 3 CAN Connection of supply voltage The equipment is supplied with 24 V DC and fused with an external slow blow fuse 200 mA Please use a safety power supply unit with safe electrical isolation The power supply unit must be electrically isolated from dangerous contact vo...

Страница 13: ...uring systems Connected inductive loads must be provided with suppressors such as RC combinations as specified by the manufacturer Not for NRA 1 3 CAN Install an easily accessible disconnecting switch for the test station in the close proximity of the equipment EN 61010 1 Not for NRA 1 3 CAN Mark the disconnecting switch as isolating device for the test station When installing connecting lines to ...

Страница 14: ...th the wiring diagram Setting operating mode Use code switch 1 Fig 4 switches S1 S3 to set one of the following seven operating modes 1 Mode S1 S2 S3 Plant tem perature Function Chan nels Remark OFF OFF OFF Test 1 ON OFF OFF yes Steam loss conductive Banking up of condensate temperature 16 Compares condensate temperature with plant tem perature 2 OFF ON OFF no Steam loss Banking up of condensate 1...

Страница 15: ... S10 to activate the CAN bus See below 1 S4 S5 S6 S7 Channels S4 S5 S6 S7 Channels OFF OFF OFF OFF 1 OFF OFF OFF ON 9 ON OFF OFF OFF 2 ON OFF OFF ON 10 OFF ON OFF OFF 3 OFF ON OFF ON 11 ON ON OFF OFF 4 ON ON OFF ON 12 OFF OFF ON OFF 5 OFF OFF ON ON 13 ON OFF ON OFF 6 ON OFF ON ON 14 OFF ON ON OFF 7 OFF ON ON ON 15 ON ON ON OFF 8 ON ON ON ON 16 Note If the settings of switches S1 S7 are changed dur...

Страница 16: ...Error In mode 2 and 7i the setting for banking up of condensate is not finished E 03 Error Maintenance interval 6 months elapsed C 01 C 16 Channels 1 16 Indication of measuring channel If the E key is pressed HIS History Alarm list detailing old alarms InT Interval Remaining time of maintenance interval CAL Calibration Channel calibration in mode 2 dtC mode 2 7 Delta TC Admissible deviation from c...

Страница 17: ... the baud rate setting Cable length Baudrate 125 m 250 kBit s factory setting 250 m 125 kBit s 335 m 100 kBit s 500 m 50 kBit s 1000 m 20 kBit s Please make the following settings Briefly press the E key and then key 1 until CAN is indicated on the seven segment display Enter the baud rate and node ID settings For the node ID you can use numbers between 1 and 127 If the baud rate and or the node I...

Страница 18: ... and must between between 0 and 100 K With the parameter tlo you can set the lower temperature limit between 0 and 100 C in increments of 5 K If the condensate temperature is below the temperature limit the alarms Banking up of conden sate and Steam loss will neither be indicated nor stored Operation alarm and test Setting banking up of condensate mode 1 to 6 SYS C Press key E briefly longer HIS K...

Страница 19: ...oint Banking up of condensate can be adjusted in increments of 5 K for each individual steam trap C xx in order to match the settings optimally to the operating conditions The parameter tlo allows you to set the lower temperature limit within a range of 0 to 100 C in increments of 5 K If the condensate temperature is below the temperature limit the alarms Banking up of condensate and Steam loss wi...

Страница 20: ...ng electrode NRG 16 27 NRG 16 28 Connect the temperature sensor to the connecting terminals 1 2 and 3 Fig 4 5 Connecting terminals of measuring electrodes Examples of three groups Channel GrP ON OFF Group Remark T Sys 1 Pt 100 plant temperature first group C 01 OFF 1 C 02 OFF 1 C 03 ON 2 Pt 1000 plant temperature second group C 04 OFF 2 C 05 ON 3 Pt 1000 plant temperature third group C 06 C 16 OFF...

Страница 21: ... longer C xx Select channel Keys 1 3 C 01 C 16 Press key E briefly ON OFF For switching use keys 1 or 3 Press key E briefly don GrP Use parameter setting GrP to select the channel for measuring the group temperature and activate it ON The setting GrP of the channels that belong to the group must remain OFF factory setting The display shows only the system plant temperature of group 1 continued con...

Страница 22: ...don dCS Setting steam loss mode 1 to 4 Use parameter setting dCS to change the factory set response sensitivity of 30 sec for the message Steam loss The delay time can be set between 30 and 90 seconds in increments of 15 sec For the setting the following number code is used 002 30 sec 003 45 sec 004 60 sec 005 75 sec 006 90 sec continued ...

Страница 23: ...iminated the message is entered into the alarm list Fig 7 Alarm list HIS Use keys 1 and 3 to browse through the list The respective alarm messages are indicated by the asso ciated LEDs 1 3 If you want to delete a list entry press and hold down the keys 1 and 3 the message clr appears the entry is deleted and the cursor goes to the next entry Alarm list maintenance interval and test mode 1 to 7 SYS...

Страница 24: ...after 10 seconds The following errors will be indicated on the seven segment display Malfunctions Error code Error Remedy E 01 Incorrect configuration due to inadmissible code switch setting Check and correct configuration The test station accepts the new settings only after switching the supply voltage off and on again E 02 In mode 2 and 7 the settings for Banking up of condensate is not finished...

Страница 25: ...ase part and remove the terminal strip 3 Detach the connecting wires from the terminal strips and pull the wires out of the cable glands 4 Remove the equipment 5 NRA 1 3e Open the control cabinet and remove the terminal strips 6 Disconnect the connecting lines from the terminal strips 4 Remove the equipment For the disposal of the test station observe the pertinent legal regulations concerning was...

Страница 26: ...nt16 Steam loss 2001 8 RO Uint16 Malfunction in electrode Tx PDO 3 2003 0 RO Uint8 T_Channel_0 2003 1 RO Uint8 T_Channel_1 2003 2 RO Uint8 T_Channel_2 2003 3 RO Uint8 T_Channel_3 2003 4 RO Uint8 T_Channel_4 2003 5 RO Uint8 T_Channel_5 2003 6 RO Uint8 T_Channel_6 2003 7 RO Uint8 T_Channel_7 Tx PDO 4 2004 8 RO Uint8 T_Channel_8 2004 9 RO Uint8 T_Channel_9 2004 10 RO Uint8 T_Channel_10 2004 11 RO Uin...

Страница 27: ...NRA 1 3 180 Hex Node ID Byte 0 Status Meaning of the fault bits Bit 0 Code switch invalid Bit 1 Calibration in mode 2 missing Bit 2 Maintenance interval elapsed Bit 3 Temperature in terminal box too high Malfunction in Pt 100 system temperature Byte 1 Operating mode Byte 2 Number of channels Byte 3 Controller output 0 100 Byte 4 Terminal box Byte 5 TSystem Information content of transmitted CAN bu...

Страница 28: ..._Channel_2 Byte 3 T_Channel_3 Byte 4 T_Channel_4 Byte 5 T_Channel_5 Byte 6 T_Channel_6 Byte 7 T_Channel_7 Information content of transmitted CAN bus telegrams PDO 4 Identifier NRA 1 3 480 Hex Node ID Byte 0 T_Channel_8 Byte 1 T_Channel_9 Byte 2 T_Channel_10 Byte 3 T_Channel_11 Byte 4 T_Channel_12 Byte 5 T_Channel_13 Byte 6 T_Channel_14 Byte 7 T_Channel_15 continued ...

Страница 29: ...29 For your Notes ...

Страница 30: ...30 For your Notes ...

Страница 31: ...31 For your Notes ...

Страница 32: ...8737 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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