The actuators can be driven by all control systems which have an AC 24 V SELV/PELV supply and operate with DC V or ma signals.

Transcription

1 (OHFWURK\GUDXOLF DFWXDWRUVIRUDOHV with a 2 mm stroke 6.' 6.' 6.' 2SHUDWLQJROWDJH$&9FRQWUROVLJQDO'&«9 «P$RUΩZLWKVSULQJUHWXUQIXQFWLRQ 6.' DV6.'EXWZLWKRXWVSULQJUHWXUQIXQFWLRQ 6.'8 DV6.'EXW8/DSSURHG 6.'8$ DV6.'8EXWZLWKHQKDQFHGIXQFWLRQVFKRLFHRIGLUHFWLRQRI RSHUDWLRQVWURNHOLPLWFRQWUROVHTXHQFHFRQWUROZLWKDGMXVWDEOH VWDUWSRLQWDQGRSHUDWLQJUDQJHDQGVLJQDODGGLWLRQIRURSHUDWLRQRI IURVWSURWHFWLRQPRQLWRUVW\SHV4$)DQG4$) 3RVLWLRQLQJIRUFH &KRLFHRIIORZFKDUDFWHULVWLFHTXDOSHUFHQWDJHRUOLQHDU 3RVLWLRQIHHGEDFN 6WURNHFDOLEUDWLRQ /('VWDWXVLQGLFDWLRQ 2HUULGHFRQWURO DQXDODGMXVWHUDQGSRVLWLRQLQGLFDWRU )RUGLUHFWPRXQWLQJRQDOHVQRDGMXVWPHQWVUHTXLUHG $GGLWLRQDOIXQFWLRQVZLWKDX[LOLDU\VZLWFKVWHPKHDWHUDQG PHFKDQLFDOVWURNHLQHUWHU 6.'8DQG6.'8$DUH8/DSSURHG CMN4563E LHPHQV%XLOGLQJ7HFKQRORJLHV +9$&3URGXFWV

2 $SSOLFDWLRQ For the operation of Siemens two-port and three-port valves, types VVF..., VVG..., VPF..., VXF... and VXG... with a 2 mm stroke, as control and safety shut-off valves in heating, ventilation and air conditioning systems. 7\SHV Versions with standard electronics Version with enhanced electronics Type Operating Control signal Spring-return Positioning time Enhanced function voltage Function Time Opening Closing 6.' 6.'8Ã 6.' AC 24 V DC... V, es 5 s 3 s 5 s No ma or... Ω No -- 6.'8$Ã AC 24 V DC... V, ma or... Ω es 5 s 3 s 5 s Direction of operation Stroke limit control Sequence control Signal addition UL-approved versions $FFHVVRULHV Type $6& $6= $6. Description Auxiliary switch Stem heater AC 24 V Mechanical stroke inverter 2UGHULQJ ([DPSOH When ordering please specify the quantity, product name and type code. DFWXDWRUW\SH6.' and DX[LOLDU\VZLWFK$6& Delivery The actuator, valve and accessories are supplied in separate packaging and not assembled prior to delivery. &RPSDWLELOLW\ &RQWUROOHUV The actuators can be driven by all control systems which have an AC 24 V SELV/PELV supply and operate with DC... V or ma signals. )URVWSURWHFWLRQ PRQLWRU The added signals from the QAF2... and QAF6... require the use of SKD62UA actuators. Notes on special programming of the electronics are described under «Enhanced electonics» on pages 6 and 7. 2/2

3 OREHDOHV The actuators are suitable for operation of the following Siemens two-port and three-port valves with a 2 mm stroke: Valve DN PN Data sheet 7ZRSRUWÃDOHVÃ99«ÃFRQWUROÃDOHVÃRUÃVDIHW\ÃVKXWRIIÃDOHV 99)ÃÃ(Flange) mm 6 bar 43 99)ÃÃ(Flange) mm bar )ÃÃ(Flange) mm 6 bar )ÃÃ(Flange) 5 mm 6 bar ÃÃ(Screwed) mm 6 bar )ÃÃ(Flange) mm 25 bar )ÃÃ(Flange) 5 and 25 mm 4 bar KUHHSRUWÃDOHVÃ9;ÃFRQWUROÃDOHVÃIRUÃPL[LQJÃDQGÃGLVWULEXWLRQ 9;)ÃÃ(Flange) mm 6 bar 44 9;)ÃÃ(Flange) mm bar 442 9;)ÃÃ(Flange) mm 6 bar 443 9;)ÃÃ(Flange) mm 6 bar 444 9;ÃÃ(Screwed) mm 6 bar ;)ÃÃ(Flange) 5 and 25 mm 4 bar 4482 For admissible differential pressures p max and p s, refer to the relevant valve data sheets. Note Third-party valves with strokes between 6 and 2 mm can be motorized, provided they are «closed with the de-energized» fail-safe mechanism and provided that the necessary mechanical coupling is available. We recommend that you contact local Siemens office for the necessary information. 7HFKQRORJ\ 3ULQFLSOHRIRSHUDWLRQ Manual adjuster Pressure cylinder Piston Reservoir Pressure chamber Pump Return spring Bypass valve Coupling Valve stem Inner valve Position indicator ( to ) Valve closed Valve open 6LJQDOLQSXW<,QFUHDVLQJ 'HFUHDVLQJ &RQVWDQW The pump () forces hydraulic oil from the reservoir () into the pressure chamber () thereby generating the stroke: the valve stem () is retracted and the valve plug opens (). The bypass valve () opens, allowing the hydraulic oil to flow back from the pressure chamber () into the reservoir () via the return spring (). The valve stem () extends and the valve plug closes (). The actuator and valve hold the current stroke position. 3/2

4 3ULQFLSOHVGLDJUDP 8 DC... V or ma Stroke Output Pump Solenoid 76en = G G... Ω Fully open Fully closed... % Input override (Signal priority) < DC... V or ma... % Input Valve Seat Detection Stroke Stroke Valve Jam Detection 3RZHU VXSSO\ 6HWWLQJVÃDQGÃLQGLFDWRUV 8VHUÃLQWHUIDFH Valve 6SULQJUHWXUQIXQFWLRQ 2HUULGHFRQWURO All SKD62 actuators are factory-fitted with a spring-return function, so that if the control signal or power supply fails, the actuator will return to the «%» stroke position. The SKD6 is without spring-return function. In case of a power failure the actuator remains in the current stroke position. The override control input (Z) has four modes of operation: 9DOHÃIXOO\ÃRSHQHG 9DOHÃIXOO\ÃFORVHG G 9 % G 9 % M M U = % < U = % < Z-contact connected directly to G -input has no effect 2HUULGHÃZLWKÃÃÃÃΩ Z-contact connected directly to G -input has no effect 6LJQDOÃDGGLWLRQÃ(SKD62UA only) G G 9 % G G 9 % < U = R % 5 9 5Ã>Ω@ U = 5 % < Z-contact connected to M via resistor R Equal-percentage or linear characteristic Starting position at 5 Ω / end position at 9 Ω -input has no effect Z-contact is connected to R of the frost protection monitor QAF2... or QAF6... Valve stroke follows signals DQG R(Z) Note The Z-modes shown assume the factory-setting «direct-acting». 6WURNHFDOLEUDWLRQ To determine the stroke positions and % in the valve, calibration is required when the valve/actuator are commissioned for the first time. For this purpose, the actuator must be mechanically connected to a Siemens valve (see «Compatibility») and must have a supply voltage of AC 24 V. The calibration procedure can be repeated as often as necessary. %HIRUHVWDUWLQJFDOLEUDWLRQHQVXUHWKDWWKHPDQXDODGMXVWHULVVHWWR $XWRPDWLFª LQRUGHUWRUHJLVWHUWKHDFWXDODOXHV 4/2

5 There is a slot on the printed circuit boards of the actuators. To initiate the calibration procedure, the contacts inside this slot must be short-circuited (e.g. with a screwdriver). Automatic calibration proceeds as follows: Actuator runs to the «stroke» position (), valve closes, green LED flashes. Actuator then runs to the «stroke» position 6WURNH (), valve opens, green LED flashes. % Measured values are stored. The calibration procedure is finish, and the green LED now glows steadily (normal operation). The actuator now moves to the position defined % by control signal or Z (). Throughout this procedure, output U is inactive, i.e. the values only represent actual positions when the green LED stops flashing and remains on continuously. 24 W /('VWDWXVLQGLFDWLRQ LED Display Function Action UHHQ 2Q Normal operation Automatic operation, no problems )ODVKLQJ Stroke calibration in progress Wait until calibration is complete (LED stops flashing) 5HG 2Q Faulty stroke calibration Check mounting Re-start stroke calibration (by short-circuiting calibration slot) Internal error Replace electronics )ODVKLQJ Inner valve jammed Check the valve %RWK 2II No power supply Faulty electronics Check mains Replace electronics 6WDQGDUGHOHFWURQLFV SKD62 SKD6 SKD62U 643 &RQQHFWLRQ WHUPLQDOV < 8 = $&Ã9 +] 9 P$ 2KP &DOLE 6WDWXV JUHHQ RN FDOLE 6WURNHÃFDOLEUDWLRQ Calib. Status UHG HUURU DOH MDP /('ÃVWDWXV LQGLFDWLRQ ',3ÃVZLWFKHV Functions see below ON OFF DIP switches Selection of control signal Selection of flow characteristic ON '&ÃÃÃÃP$ /LQHDU OFF '&ÃÃÃ9 (TXDOÃSHUFHQWDJH Factory setting: all switches OFF 5/2

6 (QKDQFHGHOHFWURQLFV SKD62UA 638 &RQQHFWLRQ WHUPLQDOV < 8 $&Ã9 = &DOLE 6WDWXV 6WURNHÃFDOLEUDWLRQ +] 9 P$ 2KP JUHHQ RN FDOLE HUURU 5RWDU\ÃVZLWFKHVÃ/2 DQGÃ83 (Factory settings ) Calib. Status UHG DOH MDP /('ÃVWDWXV LQGLFDWLRQ ',3ÃVZLWFKHV Functions see below ON OFF DIP switches Select direction of operation Sequence control or stroke limit control Selection of control signal Selection of flow characteristic ON 5HHUVHDFWLQJ 6HTXHQFHÃFRQWURO '&ÃÃÃÃP$ /LQHDU 6LJQDOÃDGGLWLRQ QAF2... / QAF6... OFF 'LUHFWDFWLQJ 6WURNHÃOLPLWÃFRQWURO '&ÃÃÃ9 (TXDOÃSHUFHQWDJH Factory setting: all switches OFF Selecting the direction of operation With normally-closed valves, «direct-acting» means that with a signal input of V, the valve closes (applies to all Siemens valves listed under «Compatibility» on page 3) With normally-open valves, «direct-acting» means that with a signal input of V, the valve is open. 'LUHFWDFWLQJ 5HHUVHDFWLQJ % % ( V) Input DC... V DC ma... Ω ( V) % % Input DC... V DC ma... Ω % Stroke à ÃÃÃÃÃà ÃÃÃÃÃÃ5 H HUV ' L U HF W % V 4 ma Ω H DFWLQ J V 2 ma Ω RWH The mechanical spring-return function is not affected by the direction of operation selected. 6/2

7 Stroke limit control and sequence control 6HWWLQJÃWKHÃVWURNHÃOLPLWÃFRQWURO The rotary switches LO and UP can be used to apply an upper and lower limit to the stroke in increments of 3%, up to a maximum of 45% /2 % ÃÃÃÈ ÃÃÃÈ y 83 6HWWLQJÃWKHÃVHTXHQFHÃFRQWURO The rotary switches LO and UP can be used to determine the starting point or the operating range of a sequence. % /2 ÃÃÃ9 ÃÃÃ9 83 y 3RVLWLRQ RIÃ/2 /RZHUÃVWURNH OLPLW 3RVLWLRQ RIÃ83 8SSHUÃVWURNH OLPLW 3RVLWLRQ RIÃ/2 6WDUWLQJÃSRLQWÃIRU VHTXHQFHÃFRQWURO 3RVLWLRQ RIÃ83 2SHUDWLQJÃUDQJH RIÃVHTXHQFH FRQWURO % % V V 3 % 97 % V V 6 % 94 % 2 V V 9 % 9 % 3 V 3 V 2 % 88 % 4 V 4 V 5 % 85 % 5 V 5 V 8 % 82 % 6 V 6 V 2 % 79 % 7 V 7 V 24 % 76 % 8 V 8 V 27 % 73 % 9 V 9 V $ 3 % $ 7 % $ V $ V % 33 % % 67 % % V % V & 36 % & 64 % & 2 V & 2 V ' 39 % ' 6 % ' 3 V ' 3 V ( 42 % ( 58 % ( 4 V ( 4 V ) 45 % ) 55 % ) 5 V ) 5 V Operating range of QAF2... (see below) Operating range of QAF6... (see below) The smallest adjustment is 3 V; control with 3 V is only possible via. Stroke control with QAF2... / QAF6... signal addition 6HWWLQJÃWKHÃVLJQDOÃDGGLWLRQ The operating range of the frost protection monitor (QAF2... or QAF6...) can be defined with rotary switches LO and UP. 3RVLWLRQ RIÃ/2 6HTXHQFHÃFRQWURO VWDUWÃSRLQW 3RVLWLRQ RIÃ83 4$)ÃÃ4$) RSHUDWLQJÃUDQJH 4$) 4$) $FFHVVRULHV $6&ÃDX[LOLDU\ÃVZLWFK Switching point 5 % stroke $6=ÃVWHPÃKHDWHU For media below C Mount between valve and actuator Z8 7/2

8 (QJLQHHULQJQRWHV The actuators must be electrically connected in accordance with local wiring regulations and with the wiring diagram on page. 5HJXODWLRQVDQGUHTXLUHPHQWVGHVLJQHGWRHQVXUHWKHVDIHW\RISHRSOHDQG SURSHUW\PXVWEHREVHUHGDWDOOWLPHV 7KH$6=VWHPKHDWHUKDVDKHDWRXWSXWRI9$DQGLVUHTXLUHGWRNHHSWKH DOHVWHPIUHHRILFHLQWKHFRROLQJUDQJHƒ& ƒ&,qwklvfdvhlqrughuwr HQVXUHDGHTXDWHDLUFLUFXODWLRQWKHDFWXDWRUEUDFNHWDQGWKHDOHVWHPPXVWQRW EHLQVXODWHG3K\VLFDOFRQWDFWZLWKXQSURWHFWHGKRWFRPSRQHQWVFDQFDXVHEXUQV )DLOXUHWRREVHUHWKHDERHDGLFHFDQUHVXOWLQDFFLGHQWVRUILUH The admissible temperatures (see «Application» and «Technical data») must be observed. RXQWLQJLQVWUXFWLRQV Orientation ƒ ƒ Instructions for fitting the actuator to the valve are enclosed in the actuator packaging. The instructions for accessories are enclosed with the accessories themselves. &RPPLVVLRQLQJQRWHV When commissioning the system, check the wiring and functions. 456Z2 456Z3 Cylinder with valve stem connector fully retracted Cylinder with valve stem connector fully extended 7KHPDQXDODGMXVWHUPXVWEHURWDWHGFRXQWHUFORFNZLVHWRWKHHQGVWRSLHXQWLO WKHUHGLQGLFDWRUPDUNHG $ªLVQRORQJHULVLEOH7KLVFDXVHVWKH6LHPHQV DOHVW\SHV99)9993)9;)DQG9;WRFORVHVWURNH 8/2

9 33a 33b Ã$ê Manual operation Ã$872ê Automatic operation DLQWHQDQFH When servicing the valve: Switch OFF the pump and power supply, close the main shut-off valves in the pipework, release pressure in the pipes and allow them to cool down completely. If necessary, disconnect electrical connections from terminals. The valve must be re-commissioned only with the actuator correctly assembled. The actuators and valves require no maintenance. 'LVSRVDO The actuator includes electrical and electronic components and must not be disposed of as domestic waste. &XUUHQWORFDOOHJLVODWLRQPXVWEHREVHUHG. :DUUDQW\ The application-specific technical data is valid for Siemens actuators used in conjunction with the Siemens valves listed under «Compatibility» (sub-heading «Globe valves»). %HIRUHXVLQJWKHVHDFWXDWRUVZLWKWKLUGSDUW\DOHVZULWWHQDSSURDOPXVWEH REWDLQHGIURP6LHPHQV%XLOGLQJ7HFKQRORJLHV$IDLOXUHWRREWDLQWKLVDSSURDO LQDOLGDWHVDQ\JXDUDQWHH 7HFKQLFDOGDWD Power supply Operating voltage (SELV, PELV) AC 24 V 2 % / +3 % Frequency 5 or 6 Hz Power consumption 7 VA / 2 W External supply cable fuse Min. A slow blow, max. A slow blow Operating data Type of control (proportional) DC... V, DC ma or... Ω Positioning time at 5 Hz 3 s (opening), 5 s (closing) Spring-return time 5 s (closing) Nominal stroke 2 mm Positioning force N Flow characteristic Linear / equal percentage can be selected Maximum admissible temperature of medium in the connected valve C < C: type ASZ6.5 stem heater required in conjunction with valves listed under «Compatibility» on page 3 9/2

10 Signal inputs Signal outputs Industry standards Terminal Voltage Input impedance Current Input impedance Signal resolution Hysteresis Terminal Z Resistance Override control functions Z not connected Z connected directly to G Z connected directly to G Z connected to M via... Ω Terminal U Voltage Load impedance Current Load impedance Meets the requirements for &( marking in EMC Directive Low Voltage Directive Electromagnetic compatibility Emitted interference Interference immunity DC... (3) V kω DC ma 24 Ω < % %... Ω No function (priority at terminal ) Max. stroke % Min. stroke % Stroke proportional to R DC V ±2 % >5 Ω DC ma ±2 % <5 Ω 89/336/EEC 73/23/EEC EN Residential EN Industrial Product standards for automatic electric controls EN C-tick N474 Protection standard IP54 to EN 6529 Protection class III to EN 673 UL approval UL 873 (SKD62U, SKD62UA) Dimensions / Weight Dimensions See «Dimensions» Cable glands Materials 6.'8$HQKDQFHGIXQFWLRQV SKD62, SKD6 SKD62U, SKD62UA Weight (including packaging) Actuator housing and bracket Housing box and manual adjuster 4 x Pg (SKD62, SKD6) 4 x Pg 6 (SKD62U, SKD62UA) 3.6 kg (SKD62, SKD6) 3.85 kg (SKD62U, SKD62UA) Die-cast aluminum Plastic Direction of operation Direct acting / reverse acting DC... V / DC... V DC ma / DC ma... Ω /... Ω Stroke limit control Sequence control Signal addition Range of lower limit Range of upper limit Terminal Starting point of sequence Operating range of sequence Z connected to R of Frost protection monitor QAF2... Frost protection monitor QAF % adjustable % adjustable... 5 V adjustable V adjustable... Ω, added to signal DC,6 V, added to signal /2

11 $FFHVVRULHV ASC.6 auxiliary switch Switching capacity of auxiliary switch AC 24 V, ma... 4 (2) A ASZ6.5 stem heater Operating voltage AC 24 V ±2 % Power consumption (heat output) 3 VA HQHUDO DPELHQWFRQGLWLRQV 2SHUDWLRQ IEC UDQVSRUW IEC WRUDJH IEC Environmental conditions Class 3K5 Class 2K3 Class K3 Temperature C C C Humidity %rh < 95 %rh %rh &RQQHFWLRQGLDJUDP G (SP) % ) ) ) B M 2 3 R M R M Ã 9 Ã & $ Fuse G B M G M G M U Z < M U Z < % Sensor ) Temperature limiter ) Frost protection monitor QAF2... ) Frost protection monitor QAF6... Controller < Actuator < Actuator SKD62UA G (SN) G Only with sequence control and the appropriate selector switch settings (see page 7) Connection terminals G G M U Z Operating voltage AC 24 V System neutral (SN) Operating voltage AC 24 V System potential (SP) Control signal DC... (3) V or DC ma Measuring neutral (= G) Position indication DC... V or DC ma Override input (functions see page 5) $6& DX[LOLDU\VZLWFK 3 84 c 4 5 /2

12 'LPHQVLRQV All dimensions in mm $ Pg Pg6 $ M Height of actuator from valve plate without stroke inverter $6.Ã ÃÃPP Height of actuator from valve plate with stroke inverter $6.Ã ÃÃPP The hole diameter on the SKD62U... actuators corresponds to the Pg6 gland. = > mm Minimum clearance from ceiling or wall for mounting, = >2 mm connection, operation, maintenance etc. $6.VWURNHLQHUWHU 9, , M2 8,5 8 Maximum stroke = 2 mm 2/2 22 Siemens Building Technologies Ltd. Subject to alteration