Electronic Damper Actuators

Transcription

1 for dampers up to. square feet or. square meters based upon 4 in.lb. per square foot Desription The and are miroproessor based atuators with onditioned feedbak that operate on 4 volt AC nominal power supply. These motors deliver a minimum of 0 in.lb. or.6 Nm. torque at rated voltage. The minimum duration through the 90 degree angle of rotation is 0 seonds. The diretion of rotation is reversible. Features Both models are fatory programmed for a 90 degree stroke and full span modulating ontrol input and will funtion as designed within those parameters. However, the motors may be reprogrammed by the field operative to respond to a PWM modulating signal or a digital ontrol signal, to eletronially adjust the stroke or to limit the ontrol response of the atuator to a portion of the -0VDC input signal. CONTROL SIGNAL The atuators will respond to either analog, PWM or digital ontrol. Both atuator models are fatory set to respond to the analog signal, -0VDC, whih may be externally wired in the field to aept 4-0mA. The atuators may be wired and reprogrammed to respond to a PWM signal with a time base of either 0. to seonds or 0. to seonds, position or 3 point floating ontrol (digital). The ontrol signal programming may be hanged bak and forth between analog, PWM and digital as many times as neessary. The feedbak signal whih is 4-0mA may be externally wired to produe a -0VDC signal. STROKE ADJUSTMENT The atuators are fatory programmed with a 90 degree stroke. In the event that the stroke of the damper is less than 90 degrees, the stroke must be limited to prevent damage to the damper. One the devie has been installed as direted, a stroke of equal to or greater than 4 degrees and less than 90 degrees may be established by repositioning the 90 degree stop srew between 4 and 90 degrees. The atuator will require re-alibration during its inaugural operation so that the new loation of the physial end stop is retained by the miroproessor. (Refer to Calibration on page ). *U.S.A. Patent #,78,44 - International Patents Pending Subsequently, as the atuator travels through the ar, it will antiipate and stop as it reahes either position where it will remain, motionless, until ativated by the ontrol signal. This apability greatly redues stress on both the damper and the atuator ensuring long life. Lastly, in the event that a hange in the stroke is neessary, the atuator may be readjusted and realibrated as many times as neessary. ZERO & SPAN In addition, these atuators are equipped with a zero & span feature whih may be field set to adjust the ontrol response of the motor to a portion of the 0-0VDC input signal. This allows for the sequening of several motors off the same input signal. One the atuator has been programed (refer to Calibration on page ) with the required parameters, the information is permanently stored in the hip. Due to the fat that the miroproessor is supported by nonvolatile memory (EEPROM) and internal feedbak, the motor will not have to re-stroke to "find itself" on start up or following a power outage or subsequent to repositioning with the luth. The Enerdrive System The Enerdrive System* is a patented eletroni iruit integral to the PC board of the that relies upon the inherent harateristis of a super apaitor to retain energy. Initiated by an interruption of the power supply, the Enerdrive System engages and, utilizing this stored energy, drives the motor at full rated torque in a lokwise or ounterlokwise diretion suh that the ontrolled devie arrives at a fully losed or fully open position where it an remain indefinitely or until the power is restored. As this is an eletroni, not a mehanial, devie, the life-span is unlimited if used in aordane with the instrutions on installation and operation. PAGE

2 Model Seletion Multi Signal Atuator with Feedbak Multi Signal Atuator with Feedbak & Enerdrive Atuator Speifiations Power Supply Maximum Power Consumption Eletrial Connetions Inlet Bushing Control Signals +/-0% or 30VDC +/-0% : 6VA at 6VAC at Full Load : VA at 6VAC Peak at Start-up 6VA at 6VAC Operating at Full Load 8 AWG Minimum, ft./7.6 m. Maximum per Atuator Srew Terminals One /8 in./.9 mm. & One 7/8 in./. mm. Knok Outs ANALOG: A) -0VDC; or B) May be Externally Wired with a 00 ohm Resistor (Supplied) for 4-0mA Zero & Span Adjustable PULSE WIDTH MODULATION: Time Base of 0. to Se./0 ms Resolution or 0. to Se./00 ms Resolution Seleted by Dip Swith Position SWITCH HOT: Tria or Dry Contat 40mA Maximum Swithing Current SWITCH NEUTRAL: NPN Transistor, SCR, Tria or Dry Contat 7mA Maximum Swithing Current DIGITAL: 3 wire/ position or 4 Wire/3 Point Floating Torque 0 in.lb. or.6 Nm. at Rated Voltage Angle of Rotation Diretion of Rotation Rotation Time Through 90 Ambient Temperature Feedbak Potentiometer 0-90, Mehanially Adjustable Reversible 0-0 in.lb.: 0-30 Seonds Through 90 0 F to + F or -8 C to +0 C 4-0mA Output Whih May be Externally Wired with a 00 ohm Resistor (Supplied) to Produe a -0VDC Signal Gear Train Enlosure Weight Die Cast Zin with a Steel Base 3 lbs. or.4 kilos PAGE

3 Anillary Produts ARM4BB ARM36BB BDM BJ6 DCA ELBB HUMISEAL MINI HANDLE MCABB RH Assembly for Remote Mounting kit with a 4" length of /6" rod Assembly for Remote Mounting kit with a 36" length of /6" rod Blade Damper Mount for remote mounting. Requires ARM4BB or ARM36BB Ball Joint for /6" rod. A omponent of ARM4BB & ARM36BB Damper Crank Arm whih aepts up to a /" jak shaft. 'L' Standoff Braket. Requires an ARM4BB or ARM36BB A liquid plasti that is sprayed on the PC board to form a transparent barrier. Intended for use in high humidity onditions Handle for the Universal Clamp Assembly Motor Crank Arm. A omponent of the ARM4BB & ARM36BB A Rain Hood or protetive over Atuator Shemati & Installation Easily installed, the atuator mounts diretly on up to a 3/8 inh/9. mm. square or / inh or mm. nominal round jak shaft and is held seurely in plae by means of the supplied mounting braket. One the atuator is in plae, the damper blades may be manually positioned by depressing the internal luth whih is loated under the motor over and rotating the universal lamp assembly. This proedure is failitated by a handle that is available separately. Aessory kits and braket allow for remote mounting. A D All atuators are shipped with the fatory settings desribed below and require no additional adjustments! B C FACTORY SETTINGS DIM. INCHES CENTIMETERS CONTROL FEEDBACK STROKE DIRECTION ENERDRIVE SIGNAL - 0VDC 4-0mA 90 DEGREES 0 TO 90 DEGREES - DIRECT ACTING "FAIL" TO THE 0 DEGREE POSITION A B C D PAGE 3

4 Wiring Shematis INSTALLATION REQUIREMENTS It is reommended that all NEPTRONIC produts be wired to a separate transformer and that that transformer shall servie only NEPTRONIC produts. This preaution will prevent interferene with, and/or possible damage to, inompatible equipment of other manufature. CAUTION! When multiple atuators are wired on a single transformer, polarity must be respeted! Long wiring runs reate voltage drops whih may affet the atuator's performane. FOR 4-0mA CONTROL SIGNAL Wire the atuator aording to the -0VDC ontrol signal wiring diagram. Connet one of the supplied 00 ohm resistors between terminals and 3. A. For Analog Control, turn Dip Swith #3 first 'ON' and then 'OFF'. The atuator will now aept -0VDC ontrol. B. For PWM Control, turn Dip Swith # first 'ON' and then 'OFF'. The atuator will now aept PWM ontrol. C. For position or 3 Point Floating Control, turn Dip Swith # first 'ON' and then 'OFF. The atuator will now aept digital ontrol. If the atuator has been wired orretly, the motor will now respond to the input signal. The dip swithes on S may now be set to perform the funtions desribed below. 3 POINT FLOATING CONTROL SIGNAL 4 3 DRIVE CCW DRIVE CW POSITION CONTROL SIGNAL 4 DRIVE CCW DRIVE CW 3 PWM CONTROL SIGNAL 4 3 PWM CONTROL SIGNAL -0VDC CONTROL SIGNAL 4 3-0VDC CONTROL SIGNAL SPECIAL CONSIDERATION FOR DIGITAL CONTROL In this mode, the atuators are sensitive to indued eletrial voltages from other soures. To prevent suh interferene, wire one.k ohm 0.W resistor between pin 4 and pin and a seond.k ohm 0.W resistor between pin 3 and pin. These resistors are supplied. THE RESET BUTTON The Reset Button is to be pressed only during alibration of either the Auto Stroking or Zero & Span or reprogramming the ontrol signal as instruted. DIP SWITCH POSITIONS Dip Swith # ontrols the diretion of rotation. For REVERSE ating, plae the swith in the 'ON' position; for DIRECT ating, plae the swith in the 'OFF' position. Dip Swith # determines the fail safe diretion either lokwise or ounterlokwise. The fatory setting is in the 'OFF' position to 'fail' CCW to the 0 position. To 'fail' to the 90 position, plae the swith in the 'ON' position. Dip Swith #3 determines the Time Base for atuators in the PWM ontrol mode. For 0. to se., plae the swith in the 'ON' position. For 0. to se., plae it in the 'OFF' position. FOR -0VDC OUTPUT FEEDBACK For any of the above wiring onfigurations, onnet one of the supplied 00 ohm resistors between terminals and to hange the output feedbak from 4-0mA to -0VDC. DIP SWITCHES SIGNAL INPUT SELECTION The atuators are fatory set to aept the analog mode, i.e. -0VDC; however, to aept PWM, position or 3 Point Floating ontrol or to reestablish analog ontrol, follow this sequene. FEEDBACK POTENTIOMETER ON S 3 S LED ON 3. Remove power to the atuator.. Put the 3 dip swithes on in the 'OFF' position. 3. Apply power and, within 0 seonds, depress & release the Reset Button. The LED should be blinking. 4. Perform one of the following: TERMINAL BLOCK 34 CLUTCH PIN PAGE 4

5 Calibration The and the are miroproessor based modulating motors with an Auto Stroking feature and memory so that the atuator will not have to re-stroke to find itself in the following irumstanes: (A) upon initial power-up (B) after a power failure or (C) if the motor is manually repositioned with the luth. These motors are also equipped with a Zero and Span feature that allows sequening of two atuators. THE AUTO STROKING FEATURE The unit is fatory tested and set with a 0-90 stroke for -0VDC ontrol input. If less than a 90 stroke is required, the atuator must be alibrated using the following proedure. Sine the atuator starts the auto stroking proedure in a lokwise rotation, the damper blades must be manually adjusted to the full ounterlokwise position. ) Install the atuator on the damper but do not tighten the universal lamp assembly. Remove the over. ) Simultaneously depress the motor luth whih is loated on the PC board and rotate the universal lamp assembly so that the start position of the motor and the damper oinide. Tighten the universal lamp assembly. 3) Adjust the 90 mehanial stop srew at the desired degree of rotation between 4 and 90. 4) Wire the atuator aording to the wiring diagram that orresponds to the ontrol signal. Apply power. The LED will be illuminated for approximately 0 seonds. ) Wait until the LED is extinguished! Press and release the Reset Button whih is loated next to the Dip Swithes on the PC board to initiate the Auto Stroking feature. The LED will light up and the atuator will start to auto stroke. 6) When the atuator reahes the mehanial stop srew, it will automatially reprogram suh that the position of the end stop will now represent 0VDC. The atuator will now return to the full CCW start position. The LED is extinguished and the proess is omplete. Replae the over and seure. THE ZERO & SPAN FEATURE This feature is only appliable to -0VDC installations. ) Install the atuator on the damper and remove the over. Wire the motor aording to the wiring diagram that orresponds to the ontrol signal. Apply power. The LED will be illuminated. ) Within the first 0 seonds of initiating the power supply, press and hold the Reset Button, whih is loated next to the dip swithes on the PC board, until the small LED blinks one. This initiates the Zero & Span alibration. 3) Release the Reset Button. The LED is now onstantly illuminated. 4) The Zero or start value may be 0 volts. To set the Zero value, apply a DC voltage aross pins and 3 and adjust the voltage until the desired value is indiated on the test meter. When this ours, depress and release the Reset Button. Wait until the LED blinks one; this single blink indiates that the Zero value has been aepted by the atuator. ) The Span or stop value must be at least 3 volts greater than the Zero or start value. To set the Span value, measure the voltage between terminals and 3 until the desired value is indiated on your test meter. Depress the Reset Button one. Wait until the LED blinks one; this single blink indiates that the Span value has been aepted by the atuator. After seonds the LED will ease to be illuminated indiating that the atuator has resumed normal operations. 6) Remove the test equipment and replae the over. Reord the Zero & Span values in the spaes provided on the produt label for future referene. RE-CALIBRATION The atuator may be re-alibrated to aept different Zero and Span values. To aomplish this, remove the power supply for a suffiient length of time for the motor to reognize a power loss (ex. seonds) and then follow steps through 6 in THE ZERO & SPAN FEATURE. To erase the Zero & Span, follow the SIGNAL INPUT SELECTION diretions on page 4 for Analog Control. The atuator will then respond to -0VDC. PAGE

6 NATIONAL ENVIRONMENTAL PRODUCTS LTD., INC. MAINTAINS A POLICY OF CONTINUAL PRODUCT DEVELOPMENT; THEREFORE, IN THE INTEREST OF TECHNICAL IMPROVEMENTS, THE FIRM RESERVES THE RIGHT TO CHANGE THE DESIGN, SPECIFICATIONS OR COMPONENTS OF THE EQUIPMENT WITHOUT PRIOR NOTICE. PRINTED IN CANADA national environmental produts montreal,anada