Spring-eturn Damper Actuator NF24(-S) For operation of air control dampers that perform safety function Torque: 7Nm Nominal voltage: AC/ Control: Open/Close Integrated auxiliary switch NF24-S Technical data Electrical data Nominal voltage 5/6Hz, Nominal voltage range AC 9..8, DC 2..8V Power consumption 5W @ running / 3W @ holding Wire/transformer sizing Auxiliary switch NF24-S 8VA 2 SPDT, 6(3)A, AC 25V Switching points, 85 Connection - otor Cable m, 2x.75mm 2 - Auxiliary switches NF24-S Cable m, 6x.75mm 2 Functional data Torque - otor - Spring min. 7Nm @ nominal voltage min. 7Nm Direction of rotation Selectable by mounting / Angle of rotation ax. 95 (35...% adjustable by mechanical limiter) unning time Sound power level otor < 75s, spring return < 3s (Temp = 2 C) otor max. 55dB(A), Spring return approximately 62dB(A) Position indicationl echanical Protection class III (safety extra-low volatage) Service life > 6, full cycles Working conditions Degree of protection IP54 in any directions EC CE according to 89/336/EEC Dimensions / weight Ambient temperature Non-operation temperature Humidity test aintenance Dimension ( x W x H) Weight -3...+5 C -4...+8 C 95%H, non condensing (EN673- aintenance-free 248x98x97.5mm Approximately 3g Dimensions [mm].... 97.5 57 28 67 248 48.5 6.5 98 8 5 49 2.5 9 5 88 39
Spring-eturn Damper Actuator NF24-S For operation of air control dampers that perform safety function Torque: 7Nm Nominal voltage: AC/ Control signal: DC 2()...V Position feedback: DC 2...V Technical data Electrical data Functional data Nominal voltage Nominal supply range Power consumption Wire/transformer sizing Connection cable Torque - otor - Spring Control signal Feedback signal Working conditions Direction of rotation Angle of rotation unning time Sound power level Position indication Service life Protection class Degree of protection Selectable by mounting / ax. 95 ( 35...% adjustable by rotation limiter) otor 5s, spring return <3s approximately (Temp=2 C) otor max. 55dB(A), Spring max. 62dB(A) echanical > 6, full cycles III (safety extra-low voltage) IP54 in any directions Dimensions / weight EC Ambient temperature Non-operation temperature Humidity test aintenance Dimensions ( x W x H) Weight 5/6Hz, AC 9..8V, DC 2..6V 5W @ running / 3W @ holding 6VA Cable m, 4x.75mm 2 min. 7Nm @ nominal voltage min. 7Nm DC 2()...V (input impedance k ) DC 2...V CE according to 89/336/EEC,92/3/EEC,93/68/EEC -3...+5 C -4...+8 C 95%H, non condensing (EN673- aintenance-free 248 x 98 x 97.5mm Approximately 3g Dimensions [mm]... 2.. 2.5 9 97.5 57 28 67 6.5 248 48.5 98 8 5 49 4 5 88
Spring-eturn Damper Actuator NF23(-S) For operation of air control dampers that perform safety function Torque: 7Nm Nominal voltage: AC 23V Control: Open/Close Integrated auxiliary switch (NF23-S) Technical data Electrical data Nominal voltage AC 23V 5/6Hz Nominal voltage range Power consumption Wire/transformer sizing AC 98..64V 7VA Connection cable - otor Cable m, 2x.75mm 2 - Auxiliary switches NF23-S Cable m, 6x.75mm 2 Functional data Torque - otor - Spring min. 7Nm @ nominal voltage min. 7Nm Direction of rotation Selectable by mounting / Angle of rotation unning time Sound power level ax. 95 (35...% adjustable by rotation limiter) otor <75s, spring return <3s (Temp=2 C) otor max. 55dB(A), Spring approximately 62dB(A) Position indication echanical Service life > 6, full cycles Working conditions Degree of protection IP54 in any directions Dimensions / weight Auxiliary switch NF23-S Switching points EC ow Voltage Directice Protection class Ambient temperature range Non-operation temperature Humidity test aintenance Dimensions ( x W x H) Weight 6W @ running / 3.5W @ holding 2 SPDT, 6(3)A, AC 25V, 85 CE according to 89/336EEC CE according to 73/23/EEC II (totally insulated) -3...+5 C -4...+8 C 95%H, non condensing (EN673- aintenance-free 248x 98 x 97.5mm Approximately 3g Dimensions [mm].... 2.5 9 97.5 57 28 67 248 48.5 6.5 98 8 5 49 5 88 4
Wiring diagrams Spring-eturn Wiring diagram: Open/Close actuators Notes: Parallel connection of several actuators is possible. Power consumption must be observed. AC 23V (for AF23..) S S2 S3 S4 S5 S6 % B = 26..9 % AF23-S, AF24-S AF24, AF23 N AC 23V (for AF23..) N AC 23V (for NF23..) To isolate from the main power supply, the system must incorporate a device which disconnects the phase conductors ( at least a 3mm contact gap). 2 S S2 S3 2 S S2 S3 S4 S5 S6 > S < S S =..9 % AF23-S, AF24-S < < 85 NF23-S,NF24-S AF23, AF24 NF23, NF24 N AC.V (for TF23..) N AC 23V (for F23..) 2 S S2 S3 2 S S2 S3 > x < x x =...% TF23-S, TF24-S > x < x x =...% F23-S, F24-S TF23, TF24 F23, F24 5
Wiring diagrams Spring-eturn Wiring diagram: 3-Point actuators Notes: Connection via safety. Parallel connection of several actuators is possible. Power consumption must be observed. ~ T ounting side eversing switch a b a (Y b (Y 2) 2 3 4 stop stop stop stop Y Y 2 TF24-3 ounting side eversing switch a b (Y ) (Y 2 ) stop stop stop stop ~ T F24-3 5
Wiring diagrams Spring-eturn Wiring diagram: odulating actuators Notes: Connection via safety. Parallel connection of several actuators is possible. Power consumption must be observed. ounting side Y DC 2()...V U DC 2...V eversing switch F24-S, AF24-S, AF24-S Y DC 2()...V U DC 2...V NF24-S easuring voltage U for position indicating or as master-slave control signal. For minimum position and override control consult manufacturers' literature. 5 4 3 2 6 7 8 9 ounting side eversing switch 9 8 7 6 5 4 3 2 T + ~ ounting side Y U DC 2() V DC 2 V 2 3 5 eversing switch 52 TF24-S
Auxiliary switch adjustment Auxiliary switch adjustment for Non-Spring-eturn Actuators. Press the push button, manually operate the universal clamp to desired switch position. 2. Turn switch pointer to the middle line. S2 S S3 S2 S3 S 3. When actuator moves clockwise (counterclockwise) to switch position, switch indicator passes the middle line counterclockwise (clockwise), the contact between S and S3 is disconnected (connected) and the contact between S and S2 is connected (disconnected). Note: The switching point should be about 5 from the mechanical end stops ( short step on the scale). 2 Auxiliary switch adjustment for Spring-eturn Actuators F..-S (ounting side ) Starting point: Actuator in safe position Procedure Turn the knob of the auxiliary switch until the tip of the arrow is pointing to the required switching position (see right). Example: Switching point setting = corresponds to 4% angle of rotation. When the actuator runs to the operating position (ccw ), the switch knob will also rotate counter-clockwise (ccw ) and the auxiliary switch will operate as the tip of the arrow passes the scale zero (S S3 linked). S2 S3 S S2 S3 S Fast unning Q.. Actuators operating controls and indicators 53
Electrical accessories Actuators CU U NU SU GU TF F NF AF AF S..A.. Auxiliary switch, add-on SA.. SPDT 3A (.5A), AC 25V S2A.. 2 SPDT 3A (.5A), AC 25V P..A.. Feedback potentiometer, add-on P4A.. 4Ω P5A.. 5Ω PA.. Ω P28A.. 28Ω P5A.. 5Ω PA.. Ω SGA24 Positioner for surface mounting...% eversible operating range DC...V or DC 2...V SG24 Positioner for surface mounting...% eversible operating range DC...V or DC 2...V SGE24 Positioner for rack mounting...% eversible operating range DC...V or DC 2...V SGF24 Positioner for front-panel mounting...% eversible operating range DC...V or DC 2...V ZAD24 Digital position indicator for front-panel mounting...99% Front size 72x72mm Operating range DC 2...V 2) 2) 2) 2) For...-S 2) For.-S 54