Functional data Factory settings Variable Setting Torque Inhibiting torque

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1 echnical data sheet GK4A-MF Parameterisable SuperCap rotary actuator with emergency setting function and extended functionalities for adjusting air dampers in ventilation and air-conditioning systems for building services installations and in laboratories For air dampers up to approx 8 m orque 4 Nm (Piggyback 8 Nm) * Nominal voltage AC/DC 4 V Control: modulating DC V or variable Position feedback DC V or variable Design life SuperCaps years * For more detailed information about piggyback, please contact your Belimo representative echnical data Electrical data Nominal voltage AC 4 V, /6 Hz / DC 4 V Nominal voltage range AC 9 88 V / DC 6 88 V Power consumption In operation At rest For wire sizing nominal torque 3 W VA (l max ms) Connection Cable m, 4 x 7 mm Parallel operation es (note the performance data) Functional data Factory settings Variable Setting orque Inhibiting torque 4 Nm 4 Nm Control Control signal DC V, input impedance k Open-close, 3-point (only AC) Modulating (DC 3 V) Operating range DC V Start point DC 3 V End point DC 3 V Position feedback (Measuring voltage ) DC V, max ma Start point DC 8 V End point DC V Setting emergency position (POP) % (POP rotary button end stop, left) % Bridging time (PF) s s Position accuracy ±% Direction of rotation Motor As an option with / Emergency setting position Reversible with switch % Direction of rotation = V At switch position and, respectively Electronically reversible Manual override Gearing latch disengaged with push button Angle of rotation Max 9, can be limited at both ends with adjustable mechanical end stops Running time Standard operation s / 9 9 s Emergency setting position 3 C Automatic adjustment of running time, operating range and measuring signal to match the Manual triggering of the adaption by pressing the «Adaption» button Automatic adaption whenever the supply voltage is switched on, mechanical angle of rotation or manual triggering Override control Sound power level Standard operation Position indication Emergency setting position MAX (maximum position) MIN (minimum position) ZS (intermediate position, only AC) 3 db 9 s running time db s running time 6 db (A) Mechanical, pluggable = % = % = % MAX MIN ZS = (MIN 3%) % = % (MAX 3%) = MIN MAX erms and abbreviations POP = Power off position / emergency setting position PF = Power fail delay time / bridging time wwwbelimocom -GK4A-MF en v 3 Subject to changes / 8

2 setting function, AC/DC 4 V, 4 Nm echnical data Safety notes (continued) Safety Protection class III Safety extra-low voltage L Class Supply Degree of protection IP4 NEMA, L Enclosure ype EMC CE according to 4/8/EC Certification Certified to IEC/EN 673- and IEC/EN clus according to L 673-A and L and CAN/CSA E673-: Mode of operation ype AA Rated impulse voltage 8 kv Control pollution degree 3 Ambient temperature 3 C Non-operating temperature 4 8 C Ambient humidity 9% rh, non-condensating Maintenance Maintenance-free Dimensions / Weight Dimensions See «Dimensions» on page 8 Weight Approx 8 kg Product features! Mode of operation he actuator is not allowed to be used outside the specified field of application, especially in aircraft or in any other airborne means of transport It may only be installed by suitably trained personnel Any legal regulations or regulations issued by authorities must be observed during installation he device may only be opened at the manufacturer's site It does not contain any parts that can be replaced or repaired by the user he cable must not be removed from the device he device contains electrical and electronic components and is not allowed to be disposed of as household refuse All locally valid regulations and requirements must be observed he actuator moves the air damper to the desired operating position at the same time as the integrated capacitors are loaded Interrupting the supply voltage causes the air damper to be rotated back into the emergency setting position by means of stored electrical energy he actuator is controlled with a standard modulating signal of DC V and moves to the position defined by the control signal he measuring voltage serves for the electrical display of the damper position % Pre-charging time (start up) he capacitor actuators require a pre-charging time his time is used for charging the capacitors up to a usable voltage level his ensures that, in the event of a voltage interruption, the actuator can be moved at any time from its current position into the preset emergency setting position (POP) he duration of the pre-charging time depends mainly on the following factors: Duration of the voltage interruption PF delay time (bridging time) ypical pre-charging times 3 PF delay s 3 PF delay [s] Duration of voltage interruption [Days] Pre-charging time [s] Pre-charging time [s] s s s Duration of voltage interruption [Days] / 8 -GK4A-MF en v 3 Subject to changes wwwbelimocom

3 Product features Delivery condition (capacitors) Parameterisable actuators Simple direct mounting Manual override High operational reliability setting function, AC/DC 4 V, 4 Nm (continued) Calculation example: In the event of a voltage interruption of 3 days and a set bridging time (PF) of s, the actuator requires a pre-charging time of 4 s (see graphic on page ) after the voltage has been reconnected he actuator is completely discharged after delivery from the factory, which is why the actuator requires approximately s pre-charging time before initial commissioning in order to bring the capacitors up to the required voltage level he factory settings cover the most common applications Input and output signals and other parameters can be altered with the Belimo service tool MF-P or with the ZH-GEN adjustment and diagnostic tool Simple direct mounting on the damper spindle with a universal spindle clamp, supplied with an anti-rotation strap to prevent the actuator from rotating Manual override with push button possible (the gear is disengaged for as long as the button remains pressed down) he actuator is overload-proof, requires no limit switches and automatically stops when the end stop is reached Home position / Start he clamp of the actuator is set ex-works to After the supply voltage has been applied, the actuator moves into the position defined by the control signal Direction of rotation switch Emergency setting position (POP) rotary button Settings When actuated, the direction of rotation switch changes the running direction in normal operation he direction of rotation switch has no influence on the emergency setting position (POP) which has been set he «Emergency setting position» rotary button can be used to adjust the desired emergency setting position (POP) between and % in % increments he rotary button applies only to the adapted angle of rotation range of between 3 and 9 No minimum or maximum set values are taken into account In the event of a voltage interruption, the actuator will move into the selected emergency setting position, taking into account the bridging time he rotary button must be set to the «ool» position for retroactive settings of the emergency setting position with the Belimo service tool MF-P Once the rotary button is set back to the range %, the manually set value will have positioning authority Bridging time (PF) Voltage interruptions can be bridged up to a maximum of s In the event of a voltage interruption, the actuator will remain stationary in accordance with the set bridging time If the voltage interruption is greater than the set bridging time, then the actuator will move into the selected emergency setting position (POP) he bridging time set ex-works is s his can be modified at the site of operations with the use of the Belimo service tool MF-P Settings he rotary button must not be set to the «ool» position! Only the values need to be entered for retroactive adjustments of the bridging time with the Belimo service tool MF-P Piggyback (mechanically coupled actuators) he torque can be increased to 8 Nm by coupling two GK4A-MF actuators with one another For more detailed information about piggyback, please contact your Belimo representative wwwbelimocom -GK4A-MF en v 3 Subject to changes 3 / 8

4 setting function, AC/DC 4 V, 4 Nm Accessories Electrical installation Description Data sheet Electrical accessories Auxiliary switch SA - SA Feedback potentiometer PA - PA Adapter Z-SPA It is imperative that this adapter be ordered if an auxiliary switch or a feedback potentiometer is required and if at the same time the shaft adapter is installed on the rear side of the actuator (eg with short-spindle installation) Belimo service tool MF-P ZH-GEN adjustment and diagnostic tool Position sensor SGA4, SGE4 and SGF4 - SG4 Digital position indication ZAD4 - ZAD4 Room temperature controller CR4 S4 - CR4- Mechanical accessories Various accessories - Z-GMA/GKA Wiring diagram Note Connect via safety isolation transformer! Control signal Measuring voltage Cable colours: = black = red 3 = white = orange Wiring diagram for parallel operation (mechanically decoupled actuators) X Notes A maximum of eight actuators can be connected in parallel Parallel operation is permitted only on separated axes It is imperative that the performance data be observed with parallel operation Actuator Actuator Actuator X Piggyback operation wiring diagram (mechanically coupled actuators) Notes A maximum of two actuators can be connected in Master-Slave operation Master-Slave operation is permitted only on one fixed axis or on two mechanically coupled axes he programming of the Master actuator is adopted by the Slave actuator Master Slave 4 / 8 -GK4A-MF en v 3 Subject to changes wwwbelimocom

5 setting function, AC/DC 4 V, 4 Nm Electrical installation (continued) Cable lengths C A = Actuator C = Control unit L = Belimo connecting cable, m (4 x 7 mm ) L = Customer cable L tot = Maximum cable length L Note When several actuators are connected in parallel, the maximum cable length must be divided by the number of actuators L L tot A Cross section L / Max cable length L tot = L L AC DC Example for DC 7 mm 4 m m m (L ) 9 m (L ) mm m 3 m m (L ) 9 m (L ) mm 8 m 4 m m (L ) 44 m (L ) mm 3 m 8 m m (L ) 79 m (L ) N L AC 3 V AC 4 V C A = Actuator C = Control unit L = Belimo connecting cable, m (4 x 7 mm ) L Note here are no special restrictions on installation if the supply and data cable are routed separately A Functions with basic values Override control with AC 4 V with relay contacts a b c (DC V) From controller eg N 47 Functions a b c % ZS % (intermediate position) % Control mode according to Remote control % Minimum limit 3 Z 4 SGA4 SGF4 SGE4 Positioner 3 Z 4 SGA4 SGF4 SGE4 Positioner [V] (DC V) From controller min [%] wwwbelimocom -GK4A-MF en v 3 Subject to changes / 8

6 Functions with basic values Control with 4 ma via external resistance setting function, AC/DC 4 V, 4 Nm (continued) Ω () () 4 ma DC V he -resistor converts the 4 ma current signal to a voltage signal DC V Operating range set to DC V Position indication 3 ZAD4 4 Adapting the direction of rotation Functional check Procedure Apply 4 V to connection and Disconnect connection 3: For direction of rotation : Actuator turns in the direction of For direction of rotation : Actuator turns in the direction of Short circuit connections and 3: Actuator runs in the opposite direction Functions for actuators with specific parameters Override control and limiting with AC 4 V with relay contacts a b c d e (DC V) From controller Functions a b c d e CLOSED Override control and limiting with AC 4 V with rotary switch CLOSED MIN ZS MAX OPEN (DC V) From controller eg N 47 eg N 47 MIN ZS (intermediate position) 3 MAX 3 OPEN Control mode according to 3-point control Open-close control a b eg N / 8 -GK4A-MF en v 3 Subject to changes wwwbelimocom

7 setting function, AC/DC 4 V, 4 Nm Operating controls and indicators 7 OOL 8 POP 3 9 Status Power Adaption 9 4 Direction of rotation switch Cover, POP button 3 POP button 4 Scale for manual adjustment Position for adjustment with tool 6 ool socket 7 Disengagement button 6 LED displays 8 yellow 9 green Meaning / function Off Illuminated Operation OK / without fault Off Blinking POP function active Illuminated Off Fault Off Off Not in operation Illuminated Illuminated Adaptation procedure running Blinking Illuminated Communication with programming tool 9 Press button: riggers angle of rotation adaption, followed by standard operation Setting the POP Power off position 9 OOL 9 POP 9 OOL Status Power Adaption OOL OOL 9 POP % OOL 9 POP > PC-ool wwwbelimocom -GK4A-MF en v 3 Subject to changes 7 / 8

8 setting function, AC/DC 4 V, 4 Nm Dimensions [mm] Dimensional drawings Damper spindle Length 67 * mm 8 mm mm 8 mm * When an auxiliary switch or a feedback potentiometer is used, see «Accessories» / 8 -GK4A-MF en v 3 Subject to changes wwwbelimocom

9 GK4A() 796-D 3 mm 4 3 mm 8 mm Nm CrNi (INOX) Nm mm 67 mm 8 mm Z-Pl 6 wwwbelimocom M-GK4A() v 3 /

10 GK4A() mm AC 4 V / DC 4 V GK4AX GK4A- GK4AX-3 AC 4 V / DC 4 V DC V DC V DC V DC V GK4A-SR GK4A-SZ GK4A-MF DC V MP GK4A-MP / M-GK4A() v 3 wwwbelimocom

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