Modulating control valves PN16 with magnetic actuators

Transcription

1 5 MXG1...P MXF1...P Modulating control valves PN1 with magnetic actuators for media containing mineral oils MXG1...P MXF1...P Mixing or straight-through valves with magnetic actuators for modulating control or dosing control of media containing mineral oils in closed circuits.. Fast positioning time ( 1 s), high-resolution stroke (1 : 0) Equal-percentage or linear valve characteristic (user-selected) High rangeabilit Switch-selected control signal: DC V / DC...10 V or DC... 0 m DC V phase cut control signal with SEZ91. external interface Wear-free inductive stroke measurement Robust, no maintenance required Fail-safe feature: > B closed when de-energised Positioning control, position feedback and manual control Use The MXG1...P (screwed fitting) and MXF1...P (flange fitting) valves are mixing or straight-through valves with a pre-mounted magnetic actuator. The magnetic actuator incorporates an electronic module for position control and positioning feedback. Control path B is closed when the valve is de-energised. C1N5en Siemens Building Technologies Landis & Staefa Division

2 Caution The valve is suitable for straight-through or three-wa applications and ma be installed onl in a mixing arrangement. The direction of flow MUST be as indicated on the valve ( B). Their short positioning time, high resolution and high rangeabilit make these valves ideal for modulating control or dosage control of fluids containing mineral oil (SE05 SE50) in closed circuits. pplication examples Temperature control in mixing circuits for motor oil circulation Temperature control in mixing circuits for screw-compressors (compressed air) Temperature control of fuel circuits in mixing circuits for petrol and diesel oil High pressure control for the calibration of components for electronic injection components Control of cutting-oil emulsion for industrial grinding machines pplications for CHW and LPHW sstems, see data sheet C1N55E. The sturd construction of these valves makes maintenance and regular servicing unnecessar and ensures a long service life. Tpes The MX P valves are available with screwed or flange fittings: MXG1...P Screwed valves DN08... DN50 MXF1...P Flanged valves DN08... DN5 For detailed tpe codes, see Sizing. Ordering For screwed valves, the required number of LG... coupling sets must be ordered as a separate item (see ccessories. When using flanged valves in straight-through applications, a blank flange is required. If needed, this must be ordered as a separate item (see ccessories ). When ordering, please state the quantit, product description and tpe code of each item. Example: 1 flanged valve, tpe MXF1.0-0P and 1 blank flange, tpe Z155/0 Principles / Construction See data sheet C1N08E for a detailed description. utomatic control The control signal is converted b a microprocessor in the electronics module into a phase-cut output signal which generates a magnetic field in the core. This causes the onl moving part, the armature, to change its position in accordance with the interacting forces (magnetic field, counter-spring, hdraulics etc.). The armature responds rapidl to an change in signal, transferring the corresponding movement directl to the control disc, enabling fast changes in load to be corrected quickl and accuratel. The valve position is measured continuousl. The positioning controller ensures an exactl proportional relationship between the control signal and the valve stroke. In the event of a power failure, or if the power is switched off, the spring force closes the valve automaticall (control path ports B). /10

3 Valve characteristic Equal-percentage Linear Volumetric flow [%] Volumetric flow [%] [V] 10 [V] 0 [m] [V] 10 [V] 0 [m] Control signal Control signal Manual control The valve control path (ports > B) can be opened manuall to between 80 and % of the full stroke (depending on DN) b pressing the hand-wheel inwards and turning it clockwise (MNUL setting). This disables the control signal from the controller. To disable automatic control of the valve, press the hand-wheel inwards and turn it anti-clockwise (to the OFF position). The valve will close. For automatic control, the hand-wheel must be set to the UTO position (the hand-wheel will spring out). Off uto Manual 01a LED indicators The two-colour LED displa indicating operating status can be viewed b opening the cover of the electronics module (see diagram on page 8) LED green On continuousl utomatic mode: uto (normal, no faults) Flashing Mechanicall set to Manual Mechanicall set to Off Currentl in Calibration mode LED red On continuousl General fault General calibration error Microcontroller fault Flashing Fault C V suppl (e.g. too low) LED Off No C V suppl Fault electronics module s a general rule, the LED can assume onl the states shown above (continuousl red or green, flashing red or green, or off). 3/10

4 ccessories Z155/... Blank flange for flanged valves DN08... DN5, see also page. LG... Coupling sets (black cast iron) for MXG1...P screwed valves (to ISO9 / DIN950). The tpe LG... coupling set comes complete with nut, cover and gasket. The required number of coupling sets must be ordered as a separate item. Tpe External thread [inches] Internal thread [inches] Weight [kg] LG15 G1B Rp½ 0,35 L G1¼B Rp¾ 0,0 LG5 G1½B Rp1 0,75 LG3 GB Rp1¼ 1,0 L G¼B Rp1½ 1,5 LG50 G¾B Rp,0 SEZ91. External interface for DC V phase cut control signal. See data sheet C1N513E. Sizing -wire-connection Note: s a rule, preference should be given to -wire connections. Valve tpe DN kvs p vmax PN Pmed PNT Wire cross-section [mm ] 1 ) 1 ) 0,75 1,5,5,0 [mm] [m 3 /h] [kpa] [bar] [V] [V] [V] Max. cable length L [m] MX P 08/15 0, MX P 10/15 1, MX P 15 3, MX P 0 5, MX P 5 8, MX P MX P MX P MXF1.5-50P wire-connection Valve tpe DN kvs p vmax PN Pmed PNT Wire cross-section [mm ] 1 ) 1 ) 0,75 1,5,5,0 [mm] [m 3 /h] [kpa] [bar] [V] [V] [V] Max. cable length L [m] MX P 08/15 0, MX P 10/15 1, MX P 15 3, MX P 0 5, MX P 5 8, MX P MX P MX P MXF1.5-50P p vmax = Max. admissible pressure differential with valve closed PN = Nominal power (at 5 C). Fuse protection (slow blow) min. 1.5 x nominal power. Local installation regulations must be observed. Pmed = Mean operating power PNT = Nominal transformer power kvs = Flow rate to IEC53-- Control path > B:Tolerance±5%, Control path B > B : Tolerance ±10 % L = Max. cable length. With -wire connections, the maximum permissible length of the separate 1.5 mm Cu signal cable is 00 m. 1 ) = ll data relates to a suppl of C.0 V /10

5 Water flow chart Flow / pressure-differential relationship. kvs signifies the volume of water V. in m 3 /h which flows through the open valve at a pressure differential pv of kpa (1 bar). See data sheet C1N03E for notes on calculating the value of kvs. 035 DN10/15 k VS 1,5 DN08/15 k VS 0, Recommendation Water sstems should be cleaned, flushed and treated in accordance with current good practice, as described, for example, in the BSRI pplication Guides G 8/91 and G /93. For other relevant information, see CIBSE Guide B (Section 7). Mounting Mounting and operating instructions are printed on the actuator and on the electronics module. The valve is suitable onl for straight-through or three-wa applications and ma be installed onl in a mixing arrangement. In the case of the straight-through valve, strict observance of the direction of flow is essential. Valve must be mounted in the vertical or horizontal position onl. The control head must NOT be mounted below the horizontal. Protection standard Upright mounting: with PG13.5 cable gland supplied b installer Horizontal mounting: with PG13.5 cable gland supplied b installer IP5 IP31 ccess for installation It is essential to maintain the specified minimum clearance above and to the side of the actuator and/or electronics module. See also Dimensions on page 10. DN08/15... DN3 = mm DN0... DN5 = 150 mm 5/10

6 Straight-through valves Onl three-wa MX P valves are supplied. The ma be used as straight-through valves b closing off port B : MXF1...P flanged valves in straight-through applications MXG1...P screwed valves in straight-through applications Port 'B' can be sealed with part Z155/... which must be ordered as a separate item. The blank flanges come complete with seal, screws, spring washers and nuts. DN15... DN3 Blank flange (Z155/15F... Z155/3F) DN0... DN5 Blank flange (Z155/0... Z155/5) Port 'B' can be sealed with the accessories supplied (cover, gasket) and the nut for the tpe LG.. coupling). The requisite number of LG... coupling sets (to ISO9 / DIN950) must be ordered as a separate item. Each LG.. coupling set comprises a nut, threaded insert and gasket Installation The tpe MXG1...P screwed valves are flat-faced to facilitate sealing with the gaskets supplied. The use of hemp, tape or thread-sealing compound must be avoided. The actuator must not be lagged. For notes on electrical installation, see page 8, Terminal laout. Maintenance The valves and actuators require no maintenance or service. The valve stem is sealed from external influences b a maintenance-free O-ring gland. Should the valve electronics prove fault, the electronics module should be exchanged. Replacemant parts Electronics module SE1 SE Nominal size DN15... DN3 DN0... DN5 mounting instruction is enclosed with the electronics module (No. 3578). Warning Under operating conditions within the limits defined b the application data, the actuator will become hot, but this does not represent a fire risk. lwas maintain the minimum clearance specified (see Dimensions, page 10). Technical data Electrical interface Power suppl For use with low voltage onl (SELV, PELV) Suppl voltage Max. voltage tolerance Control signal (user-selected) Input impedance Load impedance Nominal power Position feedback Output Max. rating Non-linearit C V, 50/0 Hz (concentric transformer winding) +0/ 15 % DC V, DC...10 V oder DC... 0 m > kohm (load < 0.1 m) at DC 0()...10 V Ohm at DC... 0 m control signal See table Sizing Stroke measurement: inductive DC V corresponding to 0... % flow or 0... % stroke m ± % of full scale /10

7 Product spezific data pplications To EN0730 Nominal pressure PN1 Operating pressure pemax 1MPa(10bar) Pressure differential P vmax See tables 'Sizing' Leakage at P v = 0.1 MPa (1bar) > B Max.0.0%k vs (to IEC53-) B > B Depends on application data (< 0. % k vs ) dmissible media Mineral oils SE05... SE50, mineral-oil-based diesel fuels, heat transfer oils Temperature of medium...10 C Ventilkennlinie Equal percentage n gl = 5,3 to VDI/VDE173 (factor setting) or linear (user selected), optimised in low opening range (to IEC53--) Stroke resolution H /H 1 : 0 (H = stroke) Hsteresis Tpicall 3 % Tpe of operation Modulating Manual adjustment Yes, with hand-wheel (see description of operation) Position with actuator > Bclosed de-energised Orientation Upright to horizontal or below horizontal. Note that orientation affects protection standard Positioning time 1s Materials (valve bod) Housing parts Cast iron (G) Inner valve CrNi steel (X1CrNi S18 8) Seat Brass (CuZn39Pb3) Valve stem seal Fluoroelastomer FPM product Bellows Tombac (CuSn), bronze (CuSn9), CrNi steel Electrical connection Connection terminal Screw terminals per terminal, with wire (no lug) x 1,5 mm or 1 x,5 mm per terminal with wire (no lug) x 1,5 mm or 1 x,5 mm per terminal with wire x 1,5 mm,x,5mm or 1 x mm Cable entr for PG13.5, G½ or M0x1.5 Weight, Dimensions Weight (including packaging) See Dimensions Dimensions See Dimensions General ambient conditions Operation: To IEC Environmental requirements: In accordance with Class 3K5 mbient temperature C Humidit 95 %rh / max. 9 g/m 3 Biological requirements In accordance with Class 3B Chemicall active substances In accordance with Class 3C1 Mechanicall active substances In accordance with Class 3M Storage and transport:: To IEC71- Environmental requirements: mbient temperature C Humidit < 95 %rh at 0 C Mechanicall active substances In accordance with Class M Product safet Safet (electrical) Protection class III (VDE 0, Part 10) SELV requirements To EN0730, also PELV compatible ESD requirements Connect valves to functional earth (e.g. metal pipework) Protection standard (mechanical) To EN0730 Orientation: Upright to horizontal IP5 (with PG13.5 cable gland) Below horizontal IP31 (with PG13.5 cable gland) CE -requirements In compliance with 73/3EEC, 89/33/EEC pproval Tested to EN0730 and EN EMC standard EN , EN50081-, EN5008-1, EN5008-7/10

8 Terminal laout Warning Functional earth (TE) must be connected to the pipework. of the transformer must be earthed in the case of 3-wire connections, and ma be earthed with -wire connections. Terminal laout for -wire connections (preferred option) 03B C V C V Control signal input + Control signal reference voltage ( ) DC V stroke signal output (position feedback, reference voltage = ) Override control input Terminal laout for 3-wire connections 038B C V C V Control signal input + (Reference voltage = ) DC V stroke signal output (position feedback, reference voltage = ) Override control input Forced control feature (Input terminal YF/) C 0 V (bridge YF) : C V (bridge G YF) : DC V at YF : Control path B closed. Control path B open. Continuousl variable low limit control, % volume flow (the higher value YF or Y takes priorit). Configuration switches 70038c B Switch 1 Characteristic Control signal 3 Volts or m OFF Linear DC V * DC 0()...10 V * ON Equal percentage * DC...10 V or DC... 0 m DC... 0 m * Factor setting: equal percentage valve characteristic, DC V control signal. Calibration The MX P magnetic valves are factor-calibrated at 0 % and % stroke. When commissioning the valves, however, (especiall under extreme conditions of use) there ma still be some leakage via control path Bwitha0%strokecontrol signal (DC 0 V, DC m or DC V). In this case, the valve can be recalibrated simpl and quickl as follows. Use a pointed implement ( mm diameter) to operate the button in the opening [ ] in the terminal housing. While recalibration is in progress, the LED [ B ] in the electronics module will flash green for approximatel 10 seconds. The valve will be briefl closed and full opened. 8/10

9 Connection examples Connection to controller with -wire output (preferred option) Common transformer Separate transformer 9005 Controller C V DC0...10V DC...10V DC... 0 m + C V U MX G Y YM X YF C V MX G Y YM X YF U Indication of valve position (onl where required). DC V > 0... % volumetric flow Twisted pairs. If the cables for the C V suppl and the control signal DC V (DC...10 V, DC... 0 m) are routed separatel, twisted pairs are not required for the C V cable. Connection to controller with 3-wire output Common transformer Separate transformer 900 Controller C V DC V DC...10 V DC... 0 m + 1) C V U MX G Y YM X YF C V 1) MX G Y YM X YF 1) No earthing required for KLIMO or MULTIREG controllers. pplication example Hdraulic circuits Caution The examples below show the principles onl, without installation-specific details. The valve is suitable for straight-through or three-wa applications onl, and ma be installed ONLY in a mixing arrangement as shown in examples to E below. 03 B B B B 10 x DN [min. 0.5 m] B B B B B B C D E B Mixing circuit Mixing circuit with bpass (underfloor heating) C D E Injection circuit Diverting circuit Injection circuit with straight-through valve 9/10

10 Dimensions MXG1...P Screwed valves with electronics module min. E F 033 min. L1 H D L DI L D = External thread G...B to ISO8/1 DI = Internal thread Rp... to ISO7/1 Screwed fittings to ISO9 / DIN950 * Whenusedas straight-through valve W Weight (including packaging) in kg Valve tpe DI [inches] D [inches] L L1 L * H E F W MXG P Rp½ G1B 80, ,8 MXG P Rp½ G1B 80, ,8 MXG P Rp½ G1B 80, ,8 MXG P Rp¾ G1¼B 95 5, , MXG P Rp1 G1½B 110 5, ,7 MXG1.3-1P Rp1¼ GB 15 7, , MXG1.0-0P Rp1½ G¼B 10 80, ,3 MXG P Rp G¾B , ,9 MXF1...P Flanged valves with electronics module min. E F 03 min. H b ø d L1 L ø k ø D Counter-flanges must be supplied b the installer. Flange dimensions to ISO7005- / DIN533, PN1 W Weight (including packaging) in kg Valve tpe L L1 D b k d H E F W MXF P x ,8 MXF P x ,8 MXF P x ,8 MXF P x ,0 MXF P x ,0 MXF1.3-1P x ,0 MXF1.0-0P x , MXF P x ,8 MXF1.5-50P x , 10/ Siemens Building Technologies G Subject to technical changes