S, S Series Low-Torque Spring- Return Direct-Coupled Actuators S, S, S, S, S, S INSTALLATION AND OPERATING INSTRUCTIONS S, S Series Low-Torque Spring-Return Direct-Coupled Actuators (DCA) are used for floating (-pt.), modulating, and -position control in heating, ventilating, and air-conditioning (HAC) systems. They can drive a variety of quarter-turn, final control elements requiring spring return failsafe operation. Applications include: olume control dampers, mounted directly to the drive shaft or remotely (with the use of accessory hardware). Quarter-turn rotary valves, such as ball or butterfly valves mounted directly to the drive shaft. SPECIFICATIONS Models: See Table. Device Weight:.6 kg Ambient Operating Temperature: - to +6 C - to +6 C (Two-position only) Shipping and Storage Temperature: - to +6 C Table. Models. OS# Torque Control Signal Power Supply and Frequency Switch Drive Timing A Driving S-POS Nm Two-Position ac @ /6 Hz, +/-% dc +/-% sec 7 A S-POS-SW SPST ac @ /6 Hz, +/-% dc +/-% sec 7 A S-POS / ac @ /6 Hz, +/-% sec A S-POS-SW / ac @ /6 Hz, +/-% sec A S ()- dc, ac @ /6 Hz, +/-% dc +/-% 9 sec 7 A S-SW Floating (-pt.) ac @ /6 Hz, +/-% dc +/-% 9 sec 7 A S-POS Nm Two-Position ac @ /6 Hz, +/-% dc +/-% sec 8 A S-POS-SW SPST ac @ /6 Hz, +/-% dc +/-% sec 8 A S- POS / ac @ /6 Hz, +/-% sec A S- POS-SW / ac @ /6 Hz, +/-% sec A S ()- dc, ac @ /6 Hz, +/-% dc +/-% 9 sec 8 A S-SW Floating (-pt.) ac @ /6 Hz, +/-% dc +/-% 9 sec 8 A ENB-6GE R N 6-6-
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S Humidity Ratings: % to 9% R.H., Non-Condensing Electrical Connections: Field wiring. mm to. mm conductors (stranded or solid) and up to -. mm conductors (stranded) to screw terminals, located under the removable access cover. Auxiliary Switch (One SPDT): Switch adjustable from -9 ua Resistive at dc (min.) ac, 8 A resistive, A inductive (max.) Mounting: Self-centering shaft adapter (shaft coupling): Round damper shafts: 9 to 6 mm Square damper shafts: 6 to mm Minimum Damper Shaft Length: mm; 76 mm recommended. Stroke: 9 ±, mechanically limited. Approvals: UL87 IEC 67- and Part UL97 for Double Insulation CE Certification Low oltage Directive 6/9/EC CE EMC /8/EC C-Tick N Enclosure Ratings: IP NEMA Flame Resistance UL9-A Input Impedance: 9 kohms minimum. Feedback Signal: ()- dc, ma (max.). Spring Return Timing (at rated load): < seconds @ - C to +6 C < 6 seconds @ - C 98 9 8 6 9 Noise Rating at m (max.): Driving Floating/Modulating: < db(a) -Position: < db(a) Spring Return: < 6 db(a) Noise Rating": 7 9 Lifetime Full strokes / spring returns: 6, Repositions:. million 6 77 8 M Fig.. Dimensional drawing of actuator in mm. ENB-6GE R 6-6
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S INSTALLATION When Installing this Product.... Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.. Installer must be a trained, experienced service technician.. After installation is complete, check out product operation as provided in these instructions. or counterclockwise spring return by flipping or turning the unit over. Damper shaft size (see the Specifications section). Determine Appropriate Mounting Orientation The actuators are designed to open a damper by driving the damper shaft in either a clockwise or counterclockwise direction (see Fig. ). NOTES: Actuators are shipped in the fully closed (spring return) position. An arrow on the hub points to a location on the label to indicate the hub rotary position. Electrical Shock or Equipment Damage Hazard. Low voltage can shock individuals or short equipment circuitry. Disconnect power supply before installation. IMPORTANT All wiring must agree with applicable codes, ordinances and regulations. CCW TO CLOSE (FAIL-SAFE POSITION) CW TO OPEN 9. AUX 6 MODE Spring Return 9 Spring Return CW TO CLOSE (FAIL-SAFE POSITION) CCW TO OPEN 9. AUX. 6 AUX 6 MODE Location These actuators are designed to mount directly to a damper external drive shaft. The shaft coupling fastens to the drive shaft. The actuator housing includes slots which, along with an anti-rotation bracket, secure the actuator to the damper frame or duct work (see Fig. 7). NOTES: When mounted correctly, these slots allow the actuator to float without rotating relative to the damper shaft. Using other brackets or linkages, the actuator can be foot-mounted or tandem-mounted. Motor Damage Hazard. Corrosive vapors and acid fumes can damage metal and plastic parts. Install motor in areas free of acid fumes and other deteriorating vapors. Equipment Damage Hazard. Tightly securing actuator to damper housing can damage actuator. Mount actuator to allow it to float along its vertical axis. Preparation Before mounting the actuator onto the damper shaft, determine the: Damper/valve opening direction for correct spring return rotation. The actuator can be mounted to provide clockwise FRONT BACK M77 Fig.. Spring Return DCA mounting orientation. Measure Damper/alve Shaft Length If the shaft is less than 76mm in length, the shaft coupling must be located between the damper/valve and actuator housing. If the shaft length is more than 76mm, the shaft coupling may be located on either side of the actuator housing. If the coupling must be moved from one side of the actuator to the other, reverse the spring return direction and flip the actuator. Follow these instructions (see Fig. ):. Remove the retainer clip from the shaft coupling and set it aside for later use.. Remove shaft coupling from one side of the actuator.. Replace the shaft coupling on the opposite side of the actuator aligning it based on the stroke labeling.. Replace the retainer clip on the shaft coupling using the groove of the coupling. M77 Fig.. Mounting shaft coupling to actuator opposite side. 6-6 ENB-6GE R
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S Selecting Actuator Control Signal The actuator control signal is selected using the Mode Selection Switch (see Fig. ), which is located on both the front and back of the Sxx and the Sxx-SW. The Mode Selection Switch can be set to integer values ranging from to 6. Using a screwdriver, set the switch to the mode indicated on the device label. Do not exceed the range indicators. Fig.. Mode Selection Switch and Auxiliary Switch Selecting Set Point of Switch The degree at which the switch is activated is selected using the Auxiliary Switch (see Fig. ), which is located on both the front and back of all Sxx-SW models. The Auxiliary Switch can be set to fractional values ranging from and. Using a screwdriver, set the switch to the degree of rotation at which you want the switch to activate. EXAMPLES: Setting the switch to will cause the switch to activate at. Setting the switch to. will cause the switch to activate at. Setting the switch to will cause the switch to activate at 9. Non-Standard Stroke Mechanical Stroke Limit Reduction For applications requiring a span less than 9 degrees, a simple adjustment can be made. When the rotational mounting of the shaft coupling is changed, the actuator drives less than the full 9 degrees stroke. The stroke is adjustable in degree increments. Once adjusted, the actuator drives until the shaft coupling reaches the mechanical stop (part of the housing). The stop causes the motor to discontinue driving and the shaft coupling drives no farther. When the actuator returns, it stops at the fail-safe position. To limit the stroke range, proceed as follows:. Remove the retainer clip from the shaft coupling and set it aside for later use.. Remove shaft coupling from the actuator.. Rotate the coupling to the desired position, aligning it based on the stroke labelling. See Fig.. NOTE: 9. AUX 6 MODE AUXILIARY SWITCH MODE SELECT =... DC =... DC =... DC =... DC = FLOATING (FWD) 6 = FLOATING (RE) Spring Return M The shaft coupling location determines the travel span. EXAMPLE:Setting shaft coupling to an approximate fail-safe position of degrees (as indicated on the housing) limits stroke to 6 degrees. (See Fig. ). Install the shaft coupling at this position.. Replace the retainer clip on the shaft coupling using the groove of the coupling. 9 Mounting Fig.. Stroke reduction. Device Malfunction Hazard. Improper shaft coupling tightening causes device malfunction. Tighten shaft coupling with proper torque to prevent damper shaft slippage. Actuator Damage Hazard. Using actuator as shaft bearing causes device damage. Use actuator only to supply rotational torque. Avoid any side loads to actuator output coupling bearings. Equipment Damage Hazard. Can damage the motor beyond repair. Never turn the motor shaft by hand or with a wrench. Forcibly turning the motor shaft can damage the gear train. To mount the actuator to an external drive shaft of a damper, proceed as follows:. Place actuator over damper shaft; and hold mounting bracket in place. See Fig. 7.. Mark screw holes on damper housing.. Remove actuator and mounting bracket.. Drill or center-punch holes for mounting screws (or use no. self-tapping sheet metal screws).. Turn damper blades to desired normal (closed) position. 6. Place actuator and mounting bracket back into position and secure bracket to damper box with sheet metal screws. 7. Using mm wrench, tighten shaft coupling securely onto damper shaft using maximum 7. Nm torque. NOTE: DRIE SPRING RETURN 9 STROKE 9 DRIE SPRING RETURN 6 6 STROKE See Fig. 6 for proper mounting to a square damper shaft. M776 ENB-6GE R 6-6
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S Access Cover Removal (Fig. 8) DAMPER SHAFT M777 Fig. 6. Proper mounting to square damper shaft. Equipment Damage Hazard. Improper cover removal can damage electric connections. Pull the cover along the axis of the actuator. The cover contains contact sockets that must connect to actuator contact pins. Bending these pins can permanently damage the device. NOTE: This cover can be removed before or after mounting actuator to the damper shaft or valve linkage. In order to wire the device, the access cover must be removed as follows:. Remove the screw from the center of the cover, set the screw aside.. Pull the cover along the long axis of the actuator.. If the actuator is not yet mounted, set it aside.. Remove conduit dust covers.. Thread wire through conduit holes. 6. Connect wires as appropriate to the terminal block(s). (See Fig. 9 and.) NOTE: Use M x. strain relief or conduit adapters. PART NO. STRN-BRKT ENSURE THAT MOUNTING ASSEMBLY PREENTS ROTATION AND ALLOWS TO FLOAT ALONG INDICATED AXIS. WHEN TOO TIGHT, THE RESULTING BINDING CAN DAMAGE THE OR REDUCE TORQUE OUTPUT. THE BRACKET CAN BE BENT TO ALLOW MOUNTING THE PARALLEL TO THE MOUNTING SURFACE. M778 Fig. 7. Mounting actuator to damper housing. WIRING Electrical Shock or Equipment Damage Hazard. Disconnect all power supplies before installation. Motors with auxiliary switches can have more than one disconnect. M779 Fig. 8. Removing access cover. IMPORTANT All wiring must comply with local electrical codes, ordinances and regulations. 6-6 ENB-6GE R
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S Typical Wiring See Fig. 9 through 9 for typical wiring details. 9 - -9 OR N/A OR + OR N T S S S S S S POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. M86A Fig.. Terminal block details. M77 Fig. 9. Terminal block details. T Table. Wiring Details. Two-Position Terminal Floating Modulating ac/dc 7 ac power power power power orn common common common neutral -9 (CW) control signal 9 - (CCW) feedback feedback Two-Position Models AC SPST SPST N LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. DC SUPPLY ACCEPTABLE. M9 Fig.. Wiring for low-voltage two-position control. LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. M98 Fig.. Wiring for line-voltage two-position control. ENB-6GE R 6-6 6
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S Floating and Modulating Models AC SPDT LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. DC SUPPLY ACCEPTABLE. -9 9 - - DC - DC - DC - DC TO ma PROPORTIONING CONTROLLER + AC 9 TO OHMS, / W MINIMUM LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. -9 9 - - DC - DC - DC - DC SET SWITCH TO FLOATING. M86 DC SUPPLY ACCEPTABLE. Fig.. Wiring for SPDT on/off control. SET SWITCH TO MODULATING. M867 Fig. 6. Wiring for - ma proportioning controllers. AC -9 AC LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. DC SUPPLY ACCEPTABLE. SET SWITCH TO FLOATING. 9 - - DC - DC - DC - DC M86 / TO DC PROPORTIONING CONTROLLER + -9 9 - - DC - DC - DC - DC Fig.. Wiring for floating control. / TO DC PROPORTIONING CONTROLLER + AC -9 9 - - DC - DC - DC - DC LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. DC SUPPLY ACCEPTABLE. SET SWITCH TO MODULATING. -9 9 - - DC - DC - DC - DC M868 LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. DC SUPPLY ACCEPTABLE. Fig. 7. Wiring for ()- dc proportioning controller operating multiple actuators. SET SWITCH TO MODULATING. M866 Fig.. Wiring for ()- dc proportioning controllers. 7 6-6 ENB-6GE R
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S OPERATION The actuator is designed to be used in ventilating and air conditioning installations to operate valves, dampers, ventilation flaps and louvers. (For ratings, see the Specifications section.) If the power fails, the actuator will spring return to the fail-safe position. When using a proportional controller, the actuator drives toward its fully open position when the input signal increases; the actuator drives toward the fully closed position when the input signal decreases. The actuator stops when the input signal reaches the desired proportional control point. This operates in reverse when set to a -() position. IMPORTANT The actuator is designed to respond to DDC Controller instantaneous contact closures. Take care not to short cycle the actuator. Unstable damper control can cause premature actuator failure. Actuator Override To override the control signal (for freeze protection or similar applications):. Override to full open: a. Disconnect the input signal (from terminal ). b. Apply ac to terminal. c. See Fig. 8.. Override to full closed: a. Disconnect the input signal (from terminal ). b. See Fig. 9. / TO DC PROPORTIONING CONTROLLER + AC LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. DC SUPPLY ACCEPTABLE. SET SWITCH TO MODULATING. SPDT Fig. 8. Override to full open. -9 OR + 9 - OR N/A - DC - DC - DC - DC M787 / TO DC PROPORTIONING CONTROLLER AC Fig. 9. Override to full close. End Switches Some models include an adjustable end switch. For wiring details, see Fig.. CHECKOUT + SPST LINE OLTAGE POWER SUPPLY. PROIDE DISCONNECT MEANS AND OERLOAD PROTECTION AS REQUIRED. DC SUPPLY ACCEPTABLE. SET SWITCH TO MODULATING. Modulating/Floating Operation. Mount actuator for required application (either clockwise or counterclockwise rotation to open the damper).. Connect power to terminals and. (See Fig. and Table.). Set Mode Select dial to desired control signal. (See Fig. 7.). Apply control signal for actuator full open or full closed position. (See Fig. and Table.) a. ()- dc: apply dc signal to terminal. b. -() dc: apply () dc signal to terminal. c. ()- ma: apply ma signal to terminal. d. -()ma: apply () ma signal to terminal. e. Floating: apply ac to appropriate -9 () or 9 - () terminal.. Actuator drives to full open or full closed position. 6. Apply control signal for actuator % position. (See Fig. and Table.) a. ()- dc: apply () dc signal to terminal. b. -() dc: apply dc signal to terminal. c. ()- ma: apply () ma signal to terminal. d. -()ma: apply ma signal to terminal. e. Floating: apply ac to appropriate -9 () or 9 - () terminal. 7. Actuator drives to full open or full closed position. -9 OR + 9 - OR N/A - DC - DC - DC - DC M788 ENB-6GE R 6-6 8
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S Spring Return Operation. Mount actuator for required application (either clockwise or counterclockwise rotation to open the damper or valve).. Connect power to terminals and. (See Fig. and Table.) NOTE: For two-position models skip to step.. Set Mode Select dial to desired control signal. (See Fig..). Apply control signal for actuator % position. (See Fig..) a. dc Input Signal: apply -6 dc signal to terminal. b. ma Input Signal: apply - ma signal to terminal. c. Floating: apply ac to appropriate -9 () or 9 - () terminal until device reaches %.. Allow the actuator to drive to % position. 6. Disconnect wire from terminal. 7. Actuator spring returns to % position. 8. Re-connect wire to terminal, actuator drives back toward % position. Feedback Operation. Connect a multi-meter, set for dc, to terminals and.. Apply the same signal as in step of Modulating Operation.. The multi-meter reading increases to match the input signal as actuator drives towards full open or full closed position.. Apply the same signal as in step 6 of Modulating Operation.. The multi-meter reading decreases to match the input signal as actuator drives towards % position. Direct Checkout. Mount actuator for required application (either clockwise or counterclockwise rotation to open the damper or valve).. Check damper position and make sure that dc/ac is present at the appropriate connections. (See Fig. 9.). Apply control signal to the appropriate connections to move the damper to the opposite position. The actuator should drive the damper or valve.. If actuator does not run, verify that the actuator is properly installed for either clockwise or counterclockwise rotation.. If actuator is correctly installed and still does not run, replace the actuator. Two-Position Checkout. Mount actuator for required application (either clockwise or counterclockwise rotation to open the damper or valve).. Check damper position and make sure that power is present at terminals and.. Actuator drives to % position.. Disconnect power from terminals and.. Actuator spring-returns to % position. 6. If actuator is correctly installed and does not run, replace the actuator. 9 6-6 ENB-6GE R
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S ENB-6GE R 6-6
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S 6-6 ENB-6GE R
S, S SERIES LOW-TORQUE SPRING-RETURN DIRECT-COUPLED S Automation and Control Solutions Honeywell GmbH Böblinger Strasse 7 7 Schönaich / Germany Phone: (9) 7 67 - Fax: (9) 7 67-9 http://ecc.emea.honeywell.com Subject to change without notice. ENB-6GE R 6-6 U.S. Registered Trademark Honeywell International Inc.