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NRR 2-60 - Installation & Operating Manual -

819693-00

EU Declaration of Conformity

We hereby declare that the NRR 2-60 level controller conforms to the following European Directives:

■

Directive 2014/35/EU

Low Voltage Directive

■

Directive 2014/30/EU

EMC Directive

■

Directive 2011/65/EU

RoHS Directive

Please see our Declaration of Conformity for details on the conformity of our equipment with European
Directives.
The current Declaration of Conformity can be found online at

www.gestra.com

or can be requested from

us.

Содержание NRR 2-60

Страница 1: ...Original Installation Operating Manual E N English Level Controller NRR 2 60 819693 00 ...

Страница 2: ...data 12 Name plate Identification NRR 2 60 14 Factory settings 15 Functional elements and dimensions 16 Installing the NRR 2 60 level controller 17 Electrical connection safety notes 17 Wiring diagram for NRR 2 60 level controller 18 Wiring diagram for NRR 2 60 level controller as 3 component regulator 19 Electrical connection 20 Bus line cable length and cross section 20 Connecting the 24V DC pow...

Страница 3: ...tion and alarm 25 Feed control or discharge control is active 25 Behaviour in the event of a malfunction 25 System malfunctions 26 Causes 26 Check the installation and configuration before systematic troubleshooting 26 Indication of system malfunctions 27 What to do in the event of system malfunctions 28 Taking out of service 28 Disposal 28 Returning decontaminated devices 28 EU Declaration of Con...

Страница 4: ...B 60 Visual Display and Operating Unit You can find the latest Installation Operating Manuals on our website http www gestra com documents brochures html Copyright All rights reserved Any misuse particularly reproduction and dissemination to third parties is not permit ted The General Terms Conditions of GESTRA AG apply Scope of delivery Product package 1 x Level Controller NRR 2 60 1 x Installati...

Страница 5: ...ions Please also read the instructions for use of any accessories The Installation Operating Manual is part of the equipment package Keep it in an easily accessible location Availability of this Installation Operating Manual Make sure this Installation Operating Manual is always available to the operator If you pass on or sell the equipment to a third party please also hand over the Installation O...

Страница 6: ...tuation that results in death or serious injury WARNING Warning of a dangerous situation that may possibly result in death or serious injury CAUTION Warning of a situation that may result in minor or moderate injury ATTENTION Warning of a situation that results in damage to property or the environment ...

Страница 7: ...tems Data can be sent and received TRV NRG LRG SRL GESTRA equipment and type designations see page 8 PhotoMOS output PhotoMOS are a special kind of semiconductor relay which use a light emitting diode on the input side that is optically coupled to an output transistor This type of electrically non conductive connection makes sure the input and output circuits are electrically isolated from each ot...

Страница 8: ...trodes into CAN bus signals Configuration operation and visual display The equipment is configured and operated and information is viewed via the URB 60 visual display and operating unit Overview of possible unit combinations Level controller Level electrode Universal converter analogue to CAN bus Visual display and operating unit NRR 2 60 NRG 26 60 NRG 26 61 URB 60 Ext 4 20 mA URW 60 URB 60 Fig 1...

Страница 9: ...0 EU EMC Directive Directive 2011 65 EU RoHS Directive Standards DIN EN 60730 1 Automatic electrical controls Part 1 General requirements EN 61326 1 Electrical equipment for measurement control and laboratory use EMC requirements Standards documents VdTÜV Bulletin BP WASS 0100 RL Requirements for water level control and limiting equipment Improper use There is a danger of death due to explosion if...

Страница 10: ...t may be faulty Perform failure analysis Only replace faulty equipment with identical equipment from GESTRA AG Required personnel qualifications Activity Personnel Integration in control system Specialist staff Plant designer Installation electrical connection bringing into service Specialist staff Electrician installer Operation Boiler service technician Staff trained by the plant operator Mainte...

Страница 11: ... the event of MIN MAX water level alarms When MIN MAX water level alarms arise the appropriate output contact opens Possible combinations of functions and equipment Combining the NRR 2 60 level controller with the level electrodes and the URB 60 visual display and operating unit provides the following functions Level controller NRR 2 60 Function Evaluation of CAN bus data telegrams from connected ...

Страница 12: ... free changeover contacts changeover relays contact material AgNi0 15 AgSnO2 Maximum switching current 8 A at 250 V AC 30 V DC cos ϕ 1 Inductive loads must have interference suppression RC combination as per the manufacturer s specification Off delay of MIN MAX output relays Factory default setting 3 seconds Outputs of control valve OPEN CLOSED 2 x potential free changeover contacts changeover rel...

Страница 13: ...ng IP 54 fully insulated Admissible ambient conditions Service temperature 10 C 55 C 0 C 55 C at power on Storage temperature 20 C 70 C Transport temperature 20 C 80 C 100 hours Air humidity max 95 non condensing Only switch on after a 24 hour defrosting period Housing Housing material Lower section of black polycarbonate glass fibre reinforced front of grey polycar bonate 2 x 15 pole terminal str...

Страница 14: ...7 12 16 1 21 6 26 11 18 3 23 8 28 13 19 4 24 9 29 14 20 5 25 10 30 15 120Ω 24V 20 xxxxxxxxxxxx OUT 1 4 20mA 0 1K Option CH CL CanBus M 0 5A NRR 2 60 MIN 3s 3s MAX 24V _ _ _ T 55 C 131 F IP 40 IP20 5 VA Betriebsanleitung beachten See installation instructions Voir instructions de montage GESTRA AG Münchener Str 77 28215 Bremen GERMANY Niveauregler Level Controller Régulateur de niveau TÜV WR xx xxx...

Страница 15: ...ch setting Sliding switch white 1 to 4 OFF Configuring the controller group and baud rate see page 23 Fig 10 MAX switchpoint 80 MIN switchpoint 20 Setpoint 50 of measuring range Direction of corrective action Inlet control Proportional band Pb 20 of setpoint Reset time Ti 0 seconds Neutral band 5 of setpoint Valve runtime 40 seconds MIN MAX alarm off delay 3 seconds factory set Quality factor 1 00...

Страница 16: ... switch for setting the controller group and baud rate E Front membrane with status LED see page 24 F Housing G Support rail TH 35 The code switch can be accessed by disconnecting and removing the lower terminal strip Equipment settings see page 23 Fig 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 100 73 118 1 2 MAX 1 27 16 17 18 19 20 21 22 23 24 25 26 28 29 30 A B C F G D E ...

Страница 17: ...oltage before commencing work 1 Switch off the voltage to the system or secure the surrounding equipment in the control cabinet if live so it cannot be touched 2 Carefully press the unit onto the support rail until the holder clips into place Electrical connection safety notes DANGER Incorrectly connecting the level controller or any associated components is a danger to system safety Connect the l...

Страница 18: ...30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 24 V DC 4 20 mA CH CL S 120 Ω M 0 5 A 0 1K Ω MIN alarm relay output MIN Relay outputs for valve control CLOSED Supply voltage On site fuse M 0 5 A Option CAN bus CH CAN High CL CAN Low S Shield 3 s OPEN MAX alarm relay output 3 s MAX Actual value output Indication of valve position potentiometer 0 1000 W M ...

Страница 19: ...15 24 V DC 4 20 mA CH CL S 120 Ω M 0 5 A 4 20 mA 4 20 mA 0 1K Ω MIN alarm relay output 3 s MIN Relay outputs for valve control CLOSED OPEN MAX alarm relay output 3 s MAX Option CAN bus CH CAN High CL CAN Low S Shield Supply voltage On site fuse M 0 5 A Actual value output Indication of valve position potentiometer 0 1000 W Analogue input 2 Feedwater flowrate option Analogue input 3 Steam quantity ...

Страница 20: ...y the equipment with 24V DC Use an M 0 5 A fuse as an external fuse Connecting the MIN MAX CLOSED OPEN output contacts Connect the outputs as shown in the wiring diagrams in Fig 7 Fig 8 Only use the terminals specified in the wiring diagrams Use a T 2 5 A fuse to protect the switching contacts Notes on connecting inductive loads All connected inductive loads such as contactors and actuators must h...

Страница 21: ...us network a 120 Ω terminating resistor must be connected to the first and last units between terminals CL CH The NRR 2 60 level controller is equipped with an internal terminating resistor To activate the internal terminating resistor in the NRR 2 60 level controller insert a bridge between the terminals Option and CH The CAN bus network must not be interrupted during operation If it is an alarm ...

Страница 22: ...e and controller group of the NRR 2 60 level controller at any time using code switch D see Fig 6 Make changes before installing the level controller when access is easier You will need the following tools Slotted screwdriver size 2 5 fully insulated Phillips screwdriver size 1 fully insulated Proceed as follows 1 Switch off the supply voltage to the equipment or system 2 Unscrew and pull off the ...

Страница 23: ...liding switch white Configuring the controller group and baud rate NRR 2 60 level controller Code switch D S1 S2 S3 S4 Configuration ID OFF OFF Controller group 1 default 40 OFF ON Controller group 2 45 ON OFF Controller group 3 60 ON ON Controller group 4 65 OFF Baud rate 50 kBit s default ON Baud rate 250 kBit s OFF Reserve default ON Reserve Fig 10 Configure the level controller as described in...

Страница 24: ...and upper bounds For your measurement of the fill level set the lower bound 0 calibration value and upper bound 100 calibration value of the measuring range of the connected level electrode This will give you the neces sary active measuring range as a percentage of the boiler level You can determine these values for the connected level electrode by performing calibration To do this read the releva...

Страница 25: ... is de energised and indicates that the MIN MAX level has been reached The LED lights up green The output relays CLOSED OPEN of the NRR 2 60 3 point stepping regulator that actuate the valve are energised or de energised depending on how they are configured on the URB 60 and on what is currently required Behaviour in the event of a malfunction In the event of a malfunction the LED lights up red an...

Страница 26: ...r connected to the terminal devices of the CAN bus line Controller group and baud rate configuration on the level controller Are the controller group and baud rate correctly set on code switch D Configuration of electrodes Are the electrodes correctly set and has the measuring range been calibrated Baud rate Is the cable length correct for the set baud rate Is the baud rate identical for all units...

Страница 27: ...gised Energised Red Interruption to power supply De ener gised De ener gised De ener gised De ener gised Off Indication of malfunctions in the NRR 2 60 level controller discharge control active Type of fault malfunction Relay LED MIN MAX CLOSED OPEN Breakdown in CAN bus communication Electrode failure De ener gised De ener gised Energised De ener gised Red Interruption to power supply De ener gise...

Страница 28: ... Returning decontaminated devices Products that come into contact with hazardous media must be drained and decontami nated before being returned or sent back to GESTRA AG The term media can refer to solid liquid or gaseous substances or mixtures as well as radiation GESTRA AG only accepts returned products with a filled out and signed return note along with a filled out and signed decontamination ...

Страница 29: ...owing European Directives Directive 2014 35 EU Low Voltage Directive Directive 2014 30 EU EMC Directive Directive 2011 65 EU RoHS Directive Please see our Declaration of Conformity for details on the conformity of our equipment with European Directives The current Declaration of Conformity can be found online at www gestra com or can be requested from us ...

Страница 30: ...30 NRR 2 60 Installation Operating Manual 819693 00 For your notes ...

Страница 31: ...31 NRR 2 60 Installation Operating Manual 819693 00 For your notes ...

Страница 32: ...5 Bremen Germany Phone 49 421 3503 0 Fax 49 421 3503 393 E mail info de gestra com Web www gestra com 819693 00 08 2019cm 808942 00 GESTRA AG Bremen Printed in Germany You can find our authorised agents around the world at www gestra com ...

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