RWF50 Overview ()
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1. 2014 Siemens AG Infrastructure amp Cities Sector Building Technologies Division Subject to change 11 8 i i i LU o9 i CO LO af lt 104 P 4 1 E LO H VV 11 11 CC1N7866en 25 07 20142. SIEMENS Use CC1N7866en 25 07 2014 AP Compact universal RVVF50 controllers The RVVF50 is used mainly for controlling the temperature or pressure in oil or gas fired heating plants If the relevant parameters are set the RWF50 can be switched to cooling mode and then controls in reverse operation The RVVF50 and this Data Sheet are intended for use by OEMs which integrate the controllers in their products The RVVF50 is used either as a 3 position controller without angular positioning feedback or a continuous controller with analog output depending on the version An external switch can be used to change to a 2 position controller for controlling 2 stage burners The integrated thermostat function switches the burner on and off LED symbols on the front indicate the following operating states Burner release Control pulses OPEN or CLOSED for driving the burner s air damper when using a modulating burner control or stage stage II when using 2 stage burner control 2 stage operation During operation the digital displays above the keys shows the setpoint green the actual value red and when making parameter settings the relevant parameters Building Technologies Division Infrastructure amp Cities Sector Supplementary documentation User Manual RWFSO0 MR U7866 Environmental Declaration RWEF50O ssseseem mmm mI RIRs E7866 Warning notes To avoid injury to persons da
3. 0 850 C lt 0 1 50 ppm K 328 1562 F 828 1562 F 58 320 F 0 135 Q lt 0 25 50 ppm K a Accuracies relate to the maximum measuring range Line resistance Max 30 per line with 3 wire circuit Line balancing Not required with 3 wire circuits With 2 wire circuits line balancing can be performed by making an actual value correction accuracy temperature Input obria s i MQ Voltage DC 0 1 lt 0 2 200 ppm K Input sc n i MQ Current 0 4 20 mA lt 0 1 100 ppm K Voltage drop lt 2 V a Accuracies relate to the maximum measuring range Binary input D1 Potentialfree contact for the following functions depending on the configuration No function Setpoint readjustment Setpoint changeover Operating mode changeover Monitoring the In the event of error the outputs assume defined states configurable measuring circuit transducer mm limit mn circuit thermometer Voltage 1 5 V e ES E Current 4 20 mA M e detected e detected only if measuring range is exceeded not detected 4 11 Building Technologies Division CC1N7866en Infrastructure amp Cities Sector 25 07 2014 Technical Data cont d Controller outputs Qut P Only RWF50 2 Only RWF50 3 Controller Electrical data Building Technologies Division Infrastructure amp Cities Sector Relay K1 NO 1P 1N burner release Contact rating Contact life Contact protection Power sup
4. 5 mm fine wired Ferrules to DIN 46228 Pin type cable socket to DIN 46231 Crimp type cable socket in fork form for M3 thread dimensions to DIN 46237 Use of the cable lug or ferrules to UL486A B UL listed or recognized 0 5 Nm DIN EN 61326 1 Class B Meeting industrial requirements 5 11 CC1N7866en 25 07 2014 Technical Data cont d Housing Type of housing Made of Makrolon for control panel mounting to DIN IEC 61554 use in indoor Color Light grey RAL7035 Mounting depth 92 mm Mounting position Optional Degree of protection Weight Fully equipped RWF50 2 Approx 170 g RWF50 3 Approx 168 g Environmental Storage DIN IEC 60721 3 1 conditions Climatic conditions Class 1K3 Mechanical conditions Class 1M2 Temperature range 40 70 C Humidity lt 95 r h Transport DIN IEC 60721 3 2 Climatic conditions Class 2K2 Mechanical conditions Class 2M2 Temperature range 40 70 C Humidity lt 95 r h Operation DIN IEC 60721 3 3 Climatic conditions Class 3K3 Mechanical conditions Class 3M3 Temperature range 20 50 C Humidity lt 95 r h Installation altitude To DIN EN 60529 Front side IP66 Rear IP20 Max 2 000 m above sea level Attention Condensation formation of ice and ingress of water are not permitted Segment display Height of numerals Upper display 10 mm mm Lower display Color Upper display Lower display Digits Red Green configurable 1999 99
5. 99 Range of display 6 11 Building Technologies Division Infrastructure amp Cities Sector CC1N7866en 25 07 2014 Function The following functions are included in the RWF50 Digital PID controller with a 3 position or analog output of the calculated output level The controller can be switched to a 2 position controller for controlling 2 stage burners Automatic thermostat or pressure controller function in low fire operation Minimum limiter and maximum limiter for the boiler temperature or boiler pressure Manual operating mode Self setting function Parameterization and visualization via USB interface and PC software ACS411 Ramp functions cold start thermal shock protection Heating cooling Block structure Air damper control Only RWF50 3 SER M L 7866d01e 0412 7 11 Building Technologies Division CC1N7866en Infrastructure amp Cities Sector 25 07 2014 Function of the controller when used for burner control Low fire operation Low fire operation means that only small amounts of energy are drawn from the boiler With the relay 1 burner release the 2 position controller controls the set setpoint by switching the burner on and off like a thermostat An adjustable switching differential ensures that the burner s switching frequency can be selected to help protect the material High fire operation High fire operation means that large amounts of energy are drawn from the
6. boiler with the burner running continuously The RVVF50 controls the required output using the 3 position or analog output Operation The RVVF50 is operated and programmed with 4 buttons on the front of the unit During operation and programming the 7 segment displays show the parameter value and parameter name Analog input To acquire the actual value a number of sensors can be connected to the RWF50 Measuring range Resistance Pt100 200 850 C 328 1562 F thermometer in 2 wire or Pt1000 200 850 C 328 1562 F 3 wire technology LG Ni1000 50 160 C 58 320 F Linearized 0 135 Ohm scalable 1999 9999 standard signals 0 20 mA scalable 1999 9999 4 20 mA scalable 1999 9999 DC 0 10 V scalable 1999 9999 DC 0 5 V scalable 1999 9999 DC 1 5 V scalable 1999 9999 The power provided for the measuring transducers is DC 24 V 410 max 25 mA 8 11 Building Technologies Division CC1N7866en Infrastructure amp Cities Sector 25 07 2014 Connection diagram RWF50 2 Analog input Legend Building Technologies Division Infrastructure amp Cities Sector K2 K3 KQ 1N 1P Rx Ux 3 position output K3 K2 KQ 7866a126 0912 f 1L Cn o OC LOL A PE N3 INE a E s G NG 5 Li r DC 24 V 10 Max 25 mA Measuring transducer supply The RWE50 contains these components Cu
7. l safety regulations are complied with Standards and certificates Conformity to EEC directives Electromagnetic compatibility EMC immunity 2004 108 EC Low voltage directive to DIN EN 60730 1 2006 95 EC OR ISO 9001 2008 Cert 00739 Cert 38233 A GE 2 11 Building Technologies Division CC1N7866en Infrastructure amp Cities Sector 25 07 2014 Service notes Disposal notes Type summary Building Technologies Division Infrastructure amp Cities Sector e For service purposes the controller can be removed from its housing This can however lead to damage of the housing e The electrical connections are made via the fixing terminals on the rear of the housing The unit contains electrical and electronic components and must not be disposed of together with domestic waste Local and currently valid legislation must be observed Compact universal controller Basic version 3 position output Housing Fixing frame and seal User Manual Single pack Compact universal controller Basic version Analog output Housing Fixing frame and seal User Manual Single pack Packaging variants 30 pieces without User Manual PC software RWF50 20A9 RWF50 30A9 RWF50 21A9 RWF50 31A9 ACS411 3 11 CC1N7866en 25 07 2014 Technical Data Inputs Resistance Type Measuring Measuring Impact of thermometers range accuracy ambient temperature Pt100 DIN EN 60751 20
8. mage to property or the environment the following A warning notes must be observed Do not open interfere with or modify the unit e All activities mounting installation and service work etc must be performed by qualified staff e Before making any wiring changes in the connection area completely isolate the plant from mains supply all polar disconnection Ensure that the plant cannot be inadvertently switched on again and that it is indeed dead If not observed there is a risk of electric shock hazard e Ensure protection against electric shock hazard by providing adequate protection for the connection terminals e When selecting the cable material during installation and when creating the electrical connections observe the regulations of VDE 0100 Erection of power installations with rated voltages below AC 1000 V and the relevant national regulations e Disconnect the device from the mains supply if there is a risk of touching live parts while work is carried out e Each time work has been carried out mounting installation service work etc check to ensure that wiring is in an orderly state e Fall or shock can adversely affect the safety functions Such units must not be put into operation even if they do not exhibit any damage Caution The safety warning and technical notes given in the User Manual on the RVVF50 U7866 apply fully to the present document also Mounting notes Ensure that the relevant nationa
9. ply for transducer G G Max 1 A at AC 250 V at cos gt 0 6 100 000 switching cycles at high fire Varistor DC 24 V 10 max 25 mA short circuit proof The following relay data are those specified by the supplier Relay K2 KQ controlling element OPEN Contact rating Contact life Contact protection Relay K3 KQ controlling element CLOSE Contact rating Contact life Contact protection Max 1 A at AC 250 V and cos 20 6 100 000 switching cycles at high fire RC combination Max 1 A at AC 250 V at cos gt 0 6 100 000 switching cycles at high fire RC unit Relay data are those specified by the supplier Analog output A A Voltage Load resistance Accuracy Current Load resistance Accuracy Type of controller RWF50 2 RVVF50 3 Controller structure Sampling time Power supply switching network section Electrical safety Power consumption Data backup Electrical connection Cross sectional area Stranded wire with With UL applications Tightening torque Electromagnetic compatibility Emitted interference Immunity DC 0 10 V short circuit proof RLast 2500 Q lt 0 25 50 ppm K 0 20 mA 4 20 mA RLast lt 500 Q lt 0 25 50 ppm K Modulating controller Continuous controller P PI PD PID 250 ms AC 110 240 V 10 15 48 63 Hz To DIN EN 60730 part 1 Overvoltage category Il Degree of contamination 2 Max 16 VA EEPROM At the rear via screw terminals 0 25 1
10. rrent input Relay Controlling element OPEN Relay Controlling element CLOSED common pole Relay K1 NO contact NO contact Pole Relay K1 Pole Resistance Power supply input Burner release AC 110 240 V 10 15 48 63 Hz 9 11 CC1N7866en 25 07 2014 Connection diagram cont d RWE50 3 Analog output DC 0 4 20 mA DC 0 10 V 7866a136 0912 o zl R Hi R Ong 5 Q9 co p e 1P 2 5 Que P Ce ee E O D U I 1 1 c Se Ss I l o X On I EM N 5 N 2 ors G G NCP AC 110 240 V 10 15 Poc GO ui 48 63 Hz Go Lu 5 DC 24 V 10 Max 25 mA Measuring transducer supply Legend The RWE50 contains these components A Analog output A Analog output Ix Current input 1N Relay K1 NO contact S NO contact P Pole RX Resistance 1P Relay R1 Pole Ux Power supply input 10 11 Building Technologies Division CC1N7866en Infrastructure amp Cities Sector 25 07 2014 Dimensions Building Technologies Division Infrastructure amp Cities Sector Dimensions in mm 51 SIEMENS 51 d RWEFSO ze Gu GD 48 5 43 5 C CD CI C 2 qms c p ENS SETUP
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