[ ] kvs theor.: Theoretical kvs value for pressure drop calculation. Electrical data Nominal voltage AC/DC 24 V Nominal voltage frequency

Transcription

1 echnical data sheet EP..R+MOD Communicative characterised control valve with sensor-operated flow control, 2-way, internal thread (EPIV) Nominal voltage AC/DC 24 V Control communicative For closed cold and warm water systems For modulating control of airhandling and heating systems on the water side Communication via Modbus RU (RS-485) Conversion of active sensor signals and switching contacts ype overview ype DN [ ] Rp [ ] Vnom [ l/s] Vnom [ l/min] kvs theor. [ m³/h] PN [ ] n(gl) [ ] EP015R+MOD 15 1/ EP020R+MOD 20 3/ EP025R+MOD EP032R+MOD / EP040R+MOD / EP050R+MOD kvs theor.: heoretical kvs value for pressure drop calculation echnical data Electrical data Nominal voltage AC/DC 24 V Nominal voltage frequency 50/60 Hz Nominal voltage range AC V / DC V Power consumption in operation 3.5 W (DN ) 4.5 W (DN ) Power consumption at rest 1.3 W (DN ) 1.4 W (DN ) Power consumption for wire sizing 6 VA (DN ) 7 VA (DN ) Connection supply / control Cable 1 m, 6 x 0.75 mm² Data for Modbus Protocol Modbus RU (RS-485), not galvanically isolated Number of nodes Max. 32 (without repeater) ransmission formats 1-8-N-2, 1-8-N-1, 1-8-E-1, 1-8-O-1 Default: 1-8-N-2 (start bits, data bits, parity, stop bits) Baud rate 9600, 19,200, 38,400, 76,800, 115,200 Bd Default: 38,400 Bd erminating resistor 120 Ohm, can be switched Parameterisation with service tool ZH EU Pushbutton-operated fast addressing possible Functional data orque Motor 5 Nm (DN ) 10 Nm (DN ) 20 Nm (DN 50) Sound power level motor 45 db(a) Adjustable flow rate Vmax % of Vnom Control accuracy ±10% (of % Vnom) Control accuracy note ±6% (of % Vnom) at 20 C / Glykol 0% vol. Media Cold and warm water, water with glycol up to max. 50% vol. Medium temperature C Permissible pressure ps 1600 kpa Closing pressure ps 1400 kpa Differential pressure pmax 350 kpa Differential pressure note 200 kpa for low-noise operation EP..R+MOD en-gb subject to changes 1

2 echnical data Functional data Flow characteristic equal percentage (VDI/VDE 2178), optimised in the opening range (switchable to linear) Leakage rate Leakage rate A, air-bubble-tight (EN ) Pipe connector Internal thread according to ISO 7-1 Installation position Upright to horizontal (in relation to the stem) Maintenance Maintenance-free Manual override with push-button, can be locked Flow measurement Measuring principle Ultrasonic volumetric flow measurement Measuring accuracy ±6% (of % Vnom) Measuring accuracy note ±2% (of % Vnom) at 20 C / Glykol 0% vol. Min. flow measurement 1% of Vnom Safety Protection class IEC/EN III Safety extra-low voltage Degree of protection IEC/EN IP54 EMC CE according to 2004/108/EC Mode of operation ype 1 Rated impulse voltage supply / control 0.8 kv Control pollution degree 3 Ambient temperature C Non-operating temperature C Ambient humidity 95% r.h., non-condensing Materials Housing Brass body Measuring pipe Brass body nickel-plated Closing element Stainless steel Stem Stainless steel Stem seal O-ring EPDM Safety notes! his device has been designed for use in stationary heating, ventilation and air conditioning systems and must not be used outside the specified field of application, especially in aircraft or in any other airborne means of transport. Only authorised specialists may carry out installation. All applicable legal or institutional installation regulations must be complied during installation. he connection between the control valve and the measuring tube should not be separated. he device contains electrical and electronic components and must not be disposed of as household refuse. All locally valid regulations and requirements must be observed. 2 EP..R+MOD en-gb subject to changes

3 Product features Mode of operation Flow characteristic he final controlling device is comprised of three components: characterised control valve (CCV), measuring pipe with volumetric flow sensor and the actuator itself. he adjusted maximum flow ( max) is assigned to the maximum positioning signal (typically 100%). he final controlling device can be controlled communicative. he medium is detected by the sensor in the measuring pipe and is applied as the flow value. he measured value is balanced with the setpoint. he actuator corrects the deviation by changing the valve position. he angle of rotation α varies according to the differential pressure through the final controlling element (see volumetric flow curves). Flow rate curves p1 < p2 < p3 p3 p2 p1 α ransmission behaviour HE Heat exchanger transmission behaviour Depending on the construction, temperature spread, medium and hydraulic circuit, the power Q is not proportional to the water volumetric flow (Curve 1). With the classical type of temperature control, an attempt is made to maintain the control signal Y proportional to the power Q (Curve 2). his is achieved by means of an equalpercentage valve characteristic curve (Curve 3) Y EP..R+MOD en-gb subject to changes 3

4 Product features Control characteristics he velocity of the medium is measured in the measuring component (sensor electronics) and converted to a flow rate signal. he positioning signal Y corresponds to the power Q via the exchanger, the volumetric flow is regulated in the EPIV. he control signal Y is converted into an equal-percentage characteristic curve and provided with the max value as the new reference variable w. he momentary control deviation forms the positioning signal Y1 for the actuator. he specially configured control parameters in connection with the precise flow rate sensor ensure a stable quality of control. hey are however not suitable for rapid control processes, i.e. for domestic water control. U5 displays the measured volumetric flow as voltage (factory setting). As an alternative, U5 can be used for displaying the valve opening angle. It is always in reference to the respective nom, i.e. if max is e.g. 50% of nom, then Y = 10 V, U5 = 5 V. 1. Standard equal percentage Vmax = Vnom / 2. effect Vmax < Vnom U5 [V] U5 [V] % nom 100% nom 50% 50% max 25% 0 Y [V] 0 Y [V] 80% 100% 80%100% Block diagram Y A 1) D A U5 D 1) w PP/MP D A DN k max Y1 M 4 EP..R+MOD en-gb subject to changes

5 Product features Definition nom is the maximum possible flow. max is the maximum flow rate which has been set with the greatest positioning signal, e.g. 100%. max can be set to between 30% and 100% of nom. min 0% (non-variable). [m 3 /h] 100% nom 30% max Creep flow suppression 0 Y [V] 100% Given the very low flow speed in the opening point, this can no longer be measured by the sensor within the required tolerance. his range is overridden electronically. Opening valve he valve remains closed until the volumetric flow required by the positioning signal Y corresponds to 1% of nom. he control along the valve characteristic curve is active after this value has been exceeded. Closing valve he control along the valve characteristic curve is active up to the required flow rate of 1% of nom. Once the level falls below this value, the flow rate is maintained at 1% of nom. If the level falls below the flow rate of 0.5% of nom required by the reference variable Y, then the valve will close. [m 3 /h] 1% Converter for sensors Parameterisable actuators Hydraulic balancing 0 Y [V] 0.5% 1% 100% Connection option for a sensor (active sensor or switching contact). In this way, the analogue sensor signal can be easily digitised and passed along to Modbus. he factory settings cover the most common applications. Single parameters can be modified with the Belimo Service ools MF-P or ZH EU. he Modbus communication parameters (address, baud rate etc.) are set with the ZH EU. Pressing push-button Service on the actuator while connecting the supply voltage resets the communication parameters to the factory setting. Quick addressing: he Modbus address can alternatively be set using push-buttons on the actuator from 1 to 16. he value selected is added to the «Basic address» parameter and results in the effective Modbus address. For example, with a basic address of 140, Modbus addresses between 141 and 156 can be parameterised using quick addressing. With the Belimo tools, the maximum flow rate (equivalent to 100% requirement) can be adjusted on-site, simply and reliably, in a few steps. If the device is integrated in the management system, then the balancing can be handled directly by the management system. EP..R+MOD en-gb subject to changes 5

6 Product features Manual override High functional reliability Home position Manual override with push-button possible (the gear is disengaged for as long as the button is pressed or remains locked). he actuator is overload protected, requires no limit switches and automatically stops when the end stop is reached. he first time the supply voltage is switched on, i.e. at the time of commissioning, the actuator carries out an adaption, which is when the operating range and position feedback adjust themselves to the mechanical setting range. After this process the actuator moves into the required position in order to ensure the flow rate defined by the positioning signal. Accessories Description Electrical accessories Connecting cable 5 m, A+B: RJ12 6/6, o ZH/ZIP-USB-MP ZK1-GEN Connection cable 5 m, A: RJ11 6/4, B: Free wire end, o ZH/ZIP- ZK2-GEN USB-MP ype Service ools Description Service ool, for MF/MP/Modbus/LonWorks actuators and VAV- Controller Belimo PC-ool, software for adjustments and diagnostics Adapter to Service ool ZH ype ZH EU MF-P MF-C 6 EP..R+MOD en-gb subject to changes

7 Electrical installation! Wiring diagrams Modbus wiring Notes Connection via safety isolating transformer. he wiring of Modbus RU (RS485) is to be carried out in accordance with applicable regulations ( he device has switchable resistors for bus termination. Modbus-GND: Supply and communication are not galvanically isolated. Connect earth signal of the devices with one another. D D + Master Modbus (RS-485) ~ + AC/DC 24 V Connection without sensor MF D D+ ~ MF D D+ + AC/DC 24 V Slave 1 Slave 32 Connection with switching contact, e.g. pressure control device ~ + Modbus (RS-485) ~ + Modbus (RS-485) p MF D D+ Note Modbus signal assignment: C₁ = D- = A C₂ = D+ = B MF D D+ Requirements for switching contact: he switching contact must be able to accurately switch a current of V. Connection with active sensor, e.g C ~ + Modbus (RS-485) MF D D+ Possible voltage range: V (resolution 30 mv) EP..R+MOD en-gb subject to changes 7

8 Modbus communication parameters Register No. Adr Register 1 0 Setpoint [%] 2 1 Override control 3 2 Command 4 3 Actuator type 5 4 Relative position [%] 6 5 Absolute position [ ] [mm] 7 6 Relative volumetric flow [%] (only for VAV/EPIV) 8 7 Absolute volumetric flow (pressure) [m 3 /h] [l/min] [Pa] (only for VAV/EPIV) 9 8 Sensor value [mv] [ ] Series number 1st part Series number 2nd part Series number 4th part Firmware version (Modbus module) Malfunction and service information Min [%] Max [%] Sensor type Bus fail position In operation Service Registers in Bold can be written Registers <100 (In operation) which can be written are volatile and should therefore be updated periodically Registers >100 which can be written are non-volatile Commands Note regarding Read Discrete Inputs he command reads one or more bits and can alternatively be used for register 105 (Malfunction and service information). he start address to be used is All data is arranged in a table and addressed by 1..n (register) or 0..n-1 (address). No distinction is made between data types (Discrete Inputs, Coils, Input Registers, Holding Registers). As a consequence, all data can be accessed with the two commands for Holding Register. he commands for Discrete Inputs and Input Registers can be used as an alternative. Standard commands: Read Holding Registers [3] Write Single Register [6] Optional commands: Read Discrete Inputs [2] Read Input Registers [4] Write Multiple Registers [16] 8 EP..R+MOD en-gb subject to changes

9 Modbus communication parameters Register 1: Setpoint Register 2: Override control Register 3: Command Register 4: Actuator type Register 5: Relative position Register 6: Absolute position Register 7: Relative volumetric flow Register 8: Absolute volumetric flow Setpoint for actuator setting or volumetric fl ow in hundredths of one percent, i.e corresponds to 0 100% Overriding the setpoint with defined values Override control 0 None 1 Open 2 Close 3 Min 5 Max Initiation of actuator functions for service and test; the register is reset automatically. Command 0 None 1 Adaption 2 est run 3 Synchronisation 4 Reset actuator malfunctions Actuator type; the allocation may deviate from the basic category with some actuators. Actuator type 0 Actuator not connected / not known 1 Air/water actuators with/without safety function 2 Volumetric flow controller VAV / EPIV 3 Fire damper actuator Relative position in hundredths of one percent, i.e correspond to 0 100% Absolute position (65535 if not supported by the actuator) he unit depends on the device: [ ] for actuators with rotary movement [mm] for actuators with linear movement Relative volumetric fl ow in hundredths of one percent of Vnom, i.e correspond to 0 100% his value is available only for VAV controllers and EPIV devices (actuator type: 2). For all other types, will be entered. Absolute volumetric fl ow his value is available only for VAV controllers and EPIV devices (actuator type: 2). For all other types, will be entered. he unit depends on the device: [m 3 /h] for VAV controllers (or [Pa] for pressure applications) [l/min] for EPIV devices Register 9: Sensor value Current sensor value; dependent on the setting in Register 108 he unit depends on the sensor type: [mv] [-] Register : Series number Register 104: Firmware Version Each device has an unambiguous series number which is either impr essed on or glued to the housing. he series number consists of 4 segments, although only parts 1, 2 and 4 are displayed on Modbus. Example: Register 101 Register 102 Register 103 1st part 2nd part 4th part Firmware version of Modbus module (VX.XX) e.g. 101 V EP..R+MOD en-gb subject to changes 9

10 Modbus communication parameters Register 105: Malfunction and service information he status information is split into messages about the actuator (malfunctions) and other service information. Malfunctions (low byte) Service (high byte) Bit Description 0 Excessive utilisation 1 Mechanical travel increased 2 Mechanical overload 3 4 Safety-relevant faults (fire protection only) 5 Damper test error (fire protection only) 6 Duct temperature too high (fire protection only) 7 Smoke detector tripped (fi re protection only) 8 Internal activity (test run, adaption, ) 9 Gear disengagement active 10 Bus watchdog triggered he malfunction bits can be reset with Register 3 (command 4) or with the Belimo PC-ool. Malfunctions 0 and 4 cannot be reset. Register 106: Min / Vmin setting Register 107: Max / Vmax setting Register 108: Sensor type Notes After changing the sensor type, the actuator must always be restarted in order for correct sensor values to be read out. By using actuator variants with RJ12 sockets (J6) sensor values are not available, as connecting a sensor is not possible. Register 109: Bus fail position Minimum limit (position or volumetric fl ow) in hundredths of one percent, i.e correspond to 0 100% Caution: Changing the setting may result in malfunctions. Maximum limit (position or volumetric fl ow) in hundredths of one percent, i.e correspond to % Caution: Changing the setting may result in malfunctions. Sensor type connected to the actuator; in the absence of sensor specification, the switching at the Y input will have the effect of a local compulsion. Sensor type 0 None 1 Active sensor (mv) Switching contact (0 / 1) Modbus communication is not monitored as standard. In the event of a breakdown in communication, the actuator retains the current setpoint. he bus monitoring controls the Modbus communication. If neither the setpoint (Register 1) nor the override control (Register 2) is renewed within 120 seconds, the actuator controls to the bus fail position. riggered bus monitoring is indicated in Register 105. Bus fail position 0 Last setpoint (no bus monitoring) 1 Fast close if time is exceeded 2 Fast open if time is exceeded 3 Parameterized intermediate position Mid if time is exceeded 10 EP..R+MOD en-gb subject to changes

11 Operating controls and indicators 4 Adaption Address 5 2 Power 3 Status 2 Push-button and LED display green Off: No power supply or malfunction On: In operation Flashing: In address mode: Pulses according to set address (1...16) When starting: Reset to factory setting (Communication) Press button: In standard mode: riggers angle of rotation adaptation In address mode: Confirmation of set address (1...16) 3 Push-button and LED display yellow Off: On: Flickering: Press button: Standard mode Adaptation or synchronising process active or actuator in address mode (LED display green flashing) Modbus communication active In operation (>3 s): Switch address mode on and off In address mode: Address setting by pressing several times When starting (>5 s): Reset to factory setting (Communication) 4 Gear disengagement button Press button: Gear disengages, motor stops, manual override possible Release button: Gear engages, synchronisation starts, followed by standard mode 5 Service plug For connecting parameterisation and service tools Check power supply connection 2 Off and 3 On Possible wiring error in power supply Installation notes Recommended installation positions he ball valve can be installed upright to horizontal. he ball valve may not be installed in a hanging position, i.e. with the stem pointing downwards Mounting position in the return Water quality requirements Maintenance Flow direction Installation in the return is recommended. he water quality requirements specified in VDI 2035 must be adhered to. Belimo valves are regulating devices. For the valves to function correctly in the long term, they must be kept free from particle debris (e.g. welding beads during installation work). he installation of suitable strainer is recommended. Ball valves, rotary actuators and sensors are maintenance-free. In the event of any service work on the final controlling device, it is essential to isolate the rotary actuator from the power supply (by unplugging the electrical cable). Any pumps in the part of the piping system concerned must also be switched off and the appropriate slide valves closed (allow everything to cool down first if necessary and reduce the system pressure to ambient pressure level). he system must not be returned to service until the ball valve and the rotary actuator have been properly reassembled in accordance with the instructions and the pipeline has been refilled in the proper manner. he direction of flow, specified by an arrow on the housing, is to be complied with, since otherwise the flow rate will be measured incorrectly. EP..R+MOD en-gb subject to changes 11

12 Installation notes Inlet section In order to achieve the specified measuring accuracy, a flow-calming section or inflow section in the direction of the flow is to be provided upstream from the measuring pipe flange. Its dimensions should be at least 5x DN. DN L min x 15 mm = 75 mm 20 5 x 20 mm = 100 mm 25 5 x 25 mm = 125 mm 32 5 x 32 mm = 160 mm 40 5 x 40 mm = 200 mm 50 5 x 50 mm = 250 mm L 5 x DN General notes Valve selection Minimum differential pressure (pressure drop) he valve is determined using the maximum required flow rate max. A calculation of the kvs value is not required. max = % of nom If no hydraulic data are available, then the same valve DN can be selected as the heat exchanger nominal diameter. he minimum required differential pressure (pressure drop through the valve) for achieving the desired volumetric flow max can be calculated with the aid of the theoretical kvs value (see type overview) and the below-mentioned formula. he calculated value is dependent on the required maximum volumetric flow max. Higher differential pressures are compensated for automatically by the valve. Formula p min = 100 x max k vs theor. 2 p min : kpa max : m 3 /h k vs theor. : m 3 /h Example (DN25 with the desired maximum flow rate = 50% nom) EP025R+MOD 3 kvs theor. = 8.6 m /h nom = 69 l/min 3 50% * 69 l/min = 34.5 l/min = 2.07 m /h p min = 100 x max k vs theor m 3 2 /h = 100 x = 6 kpa 8.6 m 3 /h 12 EP..R+MOD en-gb subject to changes

13 Service! Notes Quick adressing Modbus Service ools connection he actuator can be parameterised by PC-ool and ZH EU via the service socket. 1. Press the Service button until the green Power LED is no longer illuminated. he green Adaption LED flashes in accordance with the previously set address. 2. Set the address by pressing the Service button the corresponding number of times (1-16). 3. he green LED flashes in accordance with address that has been entered (1-16). If the address is not correct, then this can be reset in accordance with Step Confirm the address setting by pressing the green Adaption button. If no confirmation occurs for 60 seconds, then the address procedure is ended. Any address change that has been made will be discarded. he resulting Modbus address is made up of the set basic address plus the short address (e.g =147). ZH EU connection ~ + AC 24 V DC 24 V MP USB i esc OK MF D D+ PC-ool connection ~ + AC 24 V DC 24 V MP USB i esc OK BELIMO PC-ool MF D D+ USB EP..R+MOD en-gb subject to changes 13

14 Dimensions / Weight Dimensional drawings min. Y L Rp H min. X B L1 L3 L2 ype DN [ ] Rp [ ] L L1 EP015R+MOD 15 1/ EP020R+MOD 20 3/ EP025R+MOD EP032R+MOD / EP040R+MOD / EP050R+MOD L2 L3 B H X Y Weight [ kg] Further documentation ool connections General notes for project planning 14 EP..R+MOD en-gb subject to changes