TRV 5-40 ..............................10 Key ...............................10 Wiring Wiring of the temperature sensor ......................11 Bus line, cable length and size ......................11 Wiring diagram for temperature transmitter TRV 5-40 ..............12, 13 Connecting the connector and jack .......................13 Tools ..............................13 Basic Settings Factory settings ............................14...
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Basic values of measuring resistors ......................21 Checking Installation and Functions Checking the switchpoints ........................21 Malfunctions Fault-finding list for TRV 5-40 / NRS 1-40.1 / NRS 1-40.2 ..............22 Annex CAN bus ...............................23 Factory settings of node ID ........................23 Node ID ..............................24 Changing node ID for safety part ......................24...
The temperature transmitter TRV 5-40 is designed for the connection of three temperature sensors TRG 5-6x (platinum resistance thermometer Pt 100 to EN 60751). The temperatures measured by the temperature sensors are converted by the temperature transmitter TRV 5-40 and sent to the CAN bus in the form of a data telegram.
(pressurised) hot water installations according to TRD and EN 12952 and EN 12953. Function The temperature transmitter TRV 5-40 consists of the safety part for temperature limiting and the part for temperature monitoring & control. The safety part is connected with the temperature sensor. The temperature sensor detects the tem- perature and sends the measured values to the safety part of the temperature transmitter, where the measured values are recorded redundantly and monitored.
Technical Data TRV 5-40 Type approval TÜV. SWB/SHWS. 03–413 EG BAF-MUC 03 07 103881 004 DIN registry no. STW (STB) 117 906 Input/Output CAN bus interface with current supply 18 – 36 V DC, short circuit protected Temperature sensors TRG 5-63...
Technical Data – continued – TRV 5-40 – continued – Housing Material: polycarbonate Cable entry / Wiring For connecting the temperature sensor: Cable glands with integrated cable clamp, 3 x M 16, 1 three-pole and 1 six-pole screw-type terminal strip, conductor size 1.5 mm...
Installation Temperature transmitter TRV 5-40 The temperature transmitter TRV 5-40 is designed for wall mounting. Screw the four fixing lugs supplied with the transmitter into the housing. You can now attach the equipment to the wall without having to open the housing cover.
Functional Elements TRV 5-40 Fig. 3 Cross recess head screws Housing cover Fixing lugs for wall mounting Indication of limit setting Indication of actual value Code switch for node ID and baud rate setting Code switch for system configuration M 12 connector/jack, 5 poles, A-coded...
When the equipment is open you can set the baud rate by using the code switch F Fig. 3 (S 8 to 10). The baud rate of the temperature transmitter TRV 5-40 is set at our works to 250 kBit/s (for a max.
Wiring – continued – Wiring diagram for temperature transmitter TRV 5-40 Connection of temp. sensor Connection of temp. sensor used as safety limiter used as temperature monitor 1 Screen 2 Voltage supply 24 V DC+ 3 Voltage supply 24 V DC–...
If two or more system components are connected in a CAN bus the first and the last item of equipment must be provided with a terminating resistor of 120 Ω (terminals ). We recommend that you use the TRV 5-40 equipped with the connector fitted with the terminating resistor either as first or as last equipment.
The level electrodes NRG 1x-40, NRG 1x-41.1 and the temperature transmitter TRV 5-40 are to be connected to the control unit NRS 1-40.1. The level electrode NRG 1x-41 and the temperature transmitter TRV 5-40 have to be connected to the control unit 1-40.2.
1 Level electrode NRG 1x-41.1 for high water level HW and 1 Temperature transmitter TRV 5-40 for MAX temperature As only in the temperature transmitter TRV 5-40 the limiter number can be adjusted, the control unit NRS 1-40.1 has to be configured as follows:...
(°C) and the actual value are indicated. Press any of the three pushbuttons to switch to the parameter setting mode of the TRV 5-40. Both seven-segment LED displays show the adjusted limit value T (°C) and all digital points are flashing.
Start, Operation and Test TRV 5-40 Indication of Indication of limit value actual value / error code Fig. 6 Start Apply supply voltage. All segments and decimal The LED displays are being tested. points of the displays and T are flashing.
Does the position of the wire bridge correspond with the node ID setting? Configuration of the temperature transmitter TRV 5-40: Is the temperature transmitter TRV 5-40 set correctly as equipment 1, 2, 3 or 4? Node ID: Are all node ID settings correct?
System Malfunctions – continued – Systematic malfunction analysis The sources of malfunctions occurring in CAN bus systems operating with several bus-based stations must be analysed systematically since faulty components or incorrect settings can give rise to negative interactions with intact bus devices in the CAN bus system. These unwanted interactions can cause error messages in fully functional bus devices, which will make fault detection even more difficult.
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System Malfunctions – continued – Table listing error codes Indication of Indication of actual value / error code limit value Fig. 7 Indication of error code When an error Indication T Display switches between indication of error code (E xx) and actual value T occurs Error code Possible cause...
The switchpoints should be checked during commissioning and whenever the measuring elements of the temperature sensors or of the temperature transmitter TRV 5-40 are being exchanged. To check the switchpoint “MAX temperature limit (°C)” the adjusted limit value must be exceeded.
Malfunctions Fault-finding list for TRV 5-40 / NRS 1-40.1 / NRS 1-40.2 Switchpoint max. temp. limit (°C) not exceeded – max. temp. alarm raised. Fault: Temperature sensor TRG 5-6x defective. Remedy: Check the readings of the temperature sensor TRG 5-6x (Pt 100). (Basic values of measuring resistors to DIN 43760 for Pt 100).
The CAN address (node ID) can be set between 1 and 123. The temperature transmitter TRV 5-40 has already been configured at our works for operation with other GESTRA components and can be used straight away without having to set the node ID.
NRG 1x-40 NRG 1x-40 NRG 1x-41.1 transmitter as first device as second device TRV 5-40 X + 1 X + 2 X + 3 X + 4 Factory setting Reserved area Note The node ID 3* for the second level electrode NRG 1x-40 must be set in situ because the default factory setting is 2.
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Annex – continued – Table “Node ID” In a CAN bus system a maximum of 123 nodes (devices) can be administered. Each node has its own address (node ID). This address can be set via a 10-pole code switch F Fig. 3. Toggle switch, white Toggle switch, white Node ID...
Deinstall the temperature transmitter TRV 5-40 and separate the waste materials in accordance with the material specification. Electronic components (boards) must be disposed of separately. For the disposal of the temperature transmitter TRV 5-40 observe the pertinent legal regulations con- cerning waste disposal.
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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 818712-01/06-2017csa (808712-03) · GESTRA AG · Bremen · Printed in Germany...
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