Subscribe to Our Youtube Channel
Related Manuals for GESTRA NRS 1-40.1
Summary of Contents for GESTRA NRS 1-40.1
- Page 1 Control Unit NRS 1-40.1 NRS 1-40.2 Original Installation Instructions 818548-02 E n g l i s h...
-
Page 2: Table Of Contents
Scope of supply ............................5 System description ...........................5 – 7 Function ..............................8 Technical Data NRS 1-40.1 / NRS 1-40.2 ......................... 9, 10 Name plate / Marking ........................... 10 Dimensions NRS 1-40.1 / NRS 1-40.2 ....................11 Installation Control unit NRS 1-40.1 / NRS 1-40.2 ....................12 Change settings ............................12... - Page 3 Fault finding list for level electrode NRG 1.-41.1 / control unit NRS 1-40.1 ..........30 Fault finding list for level electrode NRG 1.-41 / control unit NRS 1-40.2 ..........30 Fault finding list for temperature transmitter TRV 5-40 / control unit NRS 1-40.1 / NRS 1-40.2 ..... 30 Emergency Operation Emergency operation of water level limiting system LW ................31...
-
Page 4: Important Notes
Important Notes Usage for the intended purpose The control units NRS 1-40.1 / NRS 1-40.2 must only be used in conjunction with the associated sensors for monitoring water level and temperature limits. The equipment can be used as low-level limiter (min. water-level alarm) or as low-level limiting system in conjunction with level electrode NRG 1x-40, (only NRS 1-40.1),... -
Page 5: Explanatory Notes
CAN bus. The CANopen protocol is used for the data transfer via CAN bus. Only one limiting system with one control unit NRS 1-40.1 or 1-40.2 may be used per CAN bus net- work. The application of the control unit NRS 1-40.1 or NRS 1-40.2 makes it possible to switch off different electric circuits, e. -
Page 6: System Description
– continued – System description – continued – By connecting the level electrodes and the temperature transmitter with the control unit the following combinations of functions are possible: Control unit NRS 1-40.1 Function 1 Function 2 Function 3 Function 4... - Page 7 Explanatory Notes – continued – System description – continued – Control unit NRS 1-40.2 Function 1 Function 2 Function 3 Function 4 High-level limiter (HW alarm) Level electrode NRG 1x-41 High-level limiter Safety temperature (HW alarm) monitor/limiter Level electrode Temperature transmitter NRG 1x-41 TRV 5-40 High-level limiter...
-
Page 8: Function
– continued – Function At regular intervals the control unit NRS 1-40.1 / NRS 1-40.2 evaluates the data telegram coming from the level electrodes NRG 1x-40, NRG 1x-41, NRG 1x-41.1 and the temperature transmitter TRV 5-40. This data telegram contains: An alarm when the electrode NRG 1x-40 emerges and/or when the electrode insulation is defective, An alarm when the electrode NRG 1x-41.1 enters into the water and/or when the electrode... -
Page 9: Technical Data
Technical Data NRS 1-40.1 / NRS 1-40.2 Type approval no. TÜV. SWB/SHWS STW (STB). 03–413 EG BAF-MUC 03 07 103881 004 DIN registration no. STW (STB) 117906 Input / output Interface for CAN bus to ISO 11898 CANopen Output voltage supply for sensors 18 –... -
Page 10: Name Plate / Marking
Technical Data – continued – NRS 1-40.1 / NRS 1-40.2 – continued – Admissible ambient temperature 0 – 55 °C Casing Casing material: Base: black polycarbonate; front panel: grey polycarbonate, Cross section of connector: 1 x 4.0 mm solid or 1 x 2.5 mm... -
Page 11: Dimensions Nrs 1-40.1 / Nrs 1-40.2
Technical Data – continued – Dimensions NRS 1-40.1 / NRS 1-40.2 Fig. 2 Fig. 3... -
Page 12: Installation
4. Re-insert terminal strips and fasten the fixing screws. Mount control unit The control unit NRS 1-40.1 / NRS 1-40.2 is clipped onto a support rail G type TH 35, EN 60715 in the control cabinet. (see Fig. 4) Tools... -
Page 13: Functional Elements
Functional Elements NRS 1-40.1 / NRS-40.2 GESTRA GESTRA 16 17 18 19 20 21 22 23 24 25 26 28 29 30 NRS 1-40 NRS 1-40... L N N 9 10 11 12 13 14 15 Fig. 4 The code switches are accessible after removing the lower terminal strip. The terminal strips can be unplugged after undoing the right and the left fixing screws. -
Page 14: Electrical Connection
The baud rate is set via code switch D Fig. 4 (S 8 to S 10). Default factory setting of control unit NRS 1-40.1 / NRS 1-40.2: baud rate 250 kBit/s (cable length up to 125 m). For longer cable lengths reduce baud rate accordingly. -
Page 15: Can Bus Voltage Supply
Electrical Connection – continued – CAN Bus voltage supply To ensure troublefree operation the CAN bus system must be supplied with sufficient voltage. Please use the following table to check the voltage supply of your bus system. Sum 1 Qty. Power rating per equipment Cotrol units with voltage supply... -
Page 16: Wiring Diagram For Control Unit Nrs 1-40.1
Electrical Connection – continued – Wiring diagram for control unit NRS 1-40.1 Wire link with same potential Safety circuit / supply Safety circuit – uninterrupted – ≥ 18 V Further equipment in the safety circuit Attention: NRS 1-40.1 is the first device in the safety circuit. -
Page 17: Wiring Diagram For Control Unit Nrs 1-40.2
Attention: NRS 1-40.2 is the first device in the control circuit. Do not connect terminals 26, 27, 28, 30. GESTRA GESTRA NRS 1-40 NRS 1-40.2 Photo-MOS output 24 V – 230 V AC/DC, 100 mA Instantaneous alarm signal... -
Page 18: Wiring Diagram For Can Bus System - Example
120 Ω (terminal C Only one control unit NRS 1-40.1 / NRS 1-40.2 may be used per CAN bus network. The CAN bus system must not be interrupted during operation. -
Page 19: Note
Electrical Connection – continued – Note The control units NRS 1-40.1 / NRS 1-40.2 can switch off different electric circuits, e. g. the safety circuit for the heating system and the control circuit for the feed pumps or circulation pumps. -
Page 20: Basic Settings
Commissioning Danger The terminal strips of the control units NRS 1-40.1 / NRS 1-40.2 are live during operation. This presents the risk of severe cases of electric shock! Always cut off power supply to the equipment before mounting, removing or connecting... -
Page 21: Note
Commissioning – continued – Change configuration – continued – Control unit NRS 1-40.1 Toggle switch, white Limiting function Code switch Water level LW 1 Water level Water level LW 1 LW 2 Factory setting Water level Water level Temperature LW 1... -
Page 22: Start, Operation, Alarm And Test
Test finished. Note In the event of an alarm the control unit NRS 1-40.1 / NRS 1-40.2 does not lock automatically. If a lock function is required by the installation it must be provided in the follow-up circuitry (safety circuit). This circuit must meet the requirements of... -
Page 23: System Malfunctions
Is the baud rate setting the same for all devices? Danger The terminal strips of the control unit NRS 1-40.1 / NRS 1-40.2 are live during operation. This presents the risk of severe cases of electric shock! Always cut off power supply to the equipment before mounting, removing or connecting the terminal strips! When the CAN bus is interrupted during operation an alarm will be raised. -
Page 24: Systematic Fault Finding Procedure For System Malfunctions
System Malfunctions – continued – Systematic fault finding procedure for system malfunctions The sources of malfunctions occuring in CAN bus systems operating with several bus-based stations must be analysed systematically since faulty components or incorrect settings can give rise to nega tive interactions with intact bus devices in the CAN bus system. - Page 25 System Malfunctions – continued – Systematic fault finding procedure for system malfunctions – continued – GESTRA GESTRA NRS 1-40 Malfunction alarm of control NRS 1-40... Signal unit and bus status LED Mains supply LED TEST Fig. 10 Control keys Assignment of signal LED / key / equipment:...
-
Page 26: Fault Finding List For Troubleshooting System Malfunctions: Limiters 1-4
System Malfunctions – continued – Fault finding list for troubleshooting system malfunctions: Limiters 1 – 4 Depending on the indication of the malfunction press and hold down key 1 or 2 or 3 or 4. LED 1 is flashing slowly Fault: The limiter (level electrode / temperature transmitter) and the control unit cannot communicate. -
Page 27: Fault Finding List For Troubleshooting System Malfunctions: Control Unit
System Malfunctions – continued – Fault finding list for troubleshooting system malfunctions: Control unit LED bus status is flashing slowly Fault: Faulty communication in the CAN bus system. Remedy: Check 24 V bus supply, wiring, configuration of the limiter, node ID and baud rate settings as well as terminating resistors. -
Page 28: Replace Control Unit
System Malfunctions – continued – Replace control unit 1. Cut off power supply to the equipment! 2. Remove terminal strips A, B. For this purpose turn the right and left fixing screws C in direction of the arrow until the terminal strip can be removed. 3. -
Page 29: Malfunctions
Malfunctions Fault finding list for level electrode NRG 1.-40 / control unit NRS 1-40.1 Water level below switchpoint “Low water (LW)” – no low level alarm Fault: LED “Power” and LEDs 1 - 4 are not illuminated. Remedy: Apply mains voltage, wire equipment in accordance with wiring diagram. -
Page 30: Fault Finding List For Level Electrode Nrg 1.-41.1 / Control Unit Nrs 1-40.1
The insulation of the level electrode is faulty. Remedy: Replace level electrode. Fault finding list for temperature transmitter TRV 5-40 / control unit NRS 1-40.1 / NRS 1-40.2 Switchpoint “MAX temperature” not yet exceeded – but a MAX temperature alarm is raised Fault: The temperature sensor is defective. -
Page 31: Emergency Operation
3. The terminal strip can be unplugged after undoing the right and the left fixing screws C. 4. Set switch S1 of the code switch D Fig. 4 to ON and S2 to S7 to OFF. The control unit NRS 1-40.1 has now the node ID 1. -
Page 32: Annex
– the node ID. The four-core bus cable serves as power supply and data highway for high-speed data exchange. Setting the node ID Due to the interdependence of the equipment, set the node IDs of the individual devices as follows: Control unit NRS 1-40.1 Control unit Sensor 1 Sensor 2... -
Page 33: Note
TRV 5-40 into account. Danger The terminal strips of the control unit NRS 1-40.1 / NRS 1-40.2 are live during operation. This presents the risk of severe cases of electric shock! Always cut off power supply to the equipment before mounting, removing or connecting... -
Page 34: Decommissioning
Annex – continued – Decommissioning First unplug the terminal strips A, B. For this purpose turn the right and left fixing screws C in direction of the arrow until the terminal strip can be removed. Undo the fixing slide in order to snap out the controller and take it off the supporting rail. Disposal Dismantle the control unit and separate the waste materials according to the material specification. - Page 35 For your notes...
- Page 36 Agencies all over the world: www.gestra.de GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon +49 421 3503-0 Telefax +49 421 3503-393 E-mail info@de.gestra.com www.gestra.de 818548-02/07-2017cm (808607-02) · GESTRA AG · Bremen · Printed in Germany...
Need help?
Do you have a question about the NRS 1-40.1 and is the answer not in the manual?
Questions and answers