OpenAir® Technical Instructions Document No. 155-771 October 31, 2019 GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in (6 Nm), Rotary, Electronic Damper Actuators Siemens Industry, Inc. Description The OpenAir direct-coupled fail-safe/fail-in-place electronic actuators are designed for modulating, two-position, and floating control of laboratory fume hoods, constant or variable volume installations for the control of supply and exhaust and terminal units. Features • Fast operation, 2-second runtime • One model performs all control signals: − 2-position − Floating o Accepts Siemens FHC/LRC pulsed control signal − Modulating [0(2) to 10 Vdc and 4(0) to 20 mA] o GNP191.1P/V only supports modulating control • Feedback standard on all models • Highly accurate positioning • Brushless DC motor technology with stall protection • Models available with dual, independently adjustable auxiliary switches • Unique self-centering shaft coupling • 53 lb-in (6 Nm) torque • UL and cUL listed, certified • 24 Vac/dc compatible • Manual override capability Application Used in laboratory fume hoods, constant or variable air volume installations for the control of supply and exhaust air terminals; 53 lb-in (6 Nm) torque. Models designed for applications that require the damper to return to a fail-safe position when there is a power failure; or models for fail-in-place. Product Numbers Table 1. Product Numbers. Types Operating Voltage Dual Adjustable Auxiliary Switches Action Torque Fail-safe Fail-in-Place GNP191.1P 24 Vac/dc – ● – 53 lb-in (6 Nm) GNP191.1P/V – ● – GNP196.1P ● ● – GAP191.1P – – ● GAP196.1P ● – ● Technical Instructions OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in Rotary, Electronic Damper Actuators Document Number 155-771 October 31, 2019 Page 2 Siemens Industry, Inc. Warning/Caution Notations WARNING: Personal injury or loss of life may occur if you do not perform a procedure as specified. CAUTION: Equipment damage may occur if you do not perform a procedure as specified. Specifications Power Supply 24 Vac/24 Vdc Operating voltage 24 Vac/dc 20% Frequency 50/60 Hz Power consumption running 28 VA/19W holding 8 VA/5W Equipment rating Class 2, in accordance with UL/CSA Class III per EN 60730 Control Signal Y/Y1 Modulating input signal (wires 8-2) voltage input signal 0 to 10 Vdc (max. 35 Vdc) voltage input signal 2 to 10 Vdc (max. 35 Vdc) input resistance GNP191.1P/V > 100k ohms All other models < 20k ohms repositioning resolution 0.4% Floating input signal (wires 8-2) 0 or 24 Vac/dc Clockwise (Not available on GNP191.1P/V) Control Signal Y2 Floating input signal (wires 7-2) 0 to 24 Vac/dc Counterclockwise (Not available on GNP191.1P/V) Feedback Signal Position output signal (wires 9-2) 0 to 10 Vdc maximum output current DC ± 1mA Auxiliary Switches GNP196.1P GAP196.1P Contact loading 6A resistive, 2A inductive Voltage (no mixed operation 24 Vac/230 Vac) 24 to 250 Vac Switching range for auxiliary switches 5° to 90° Step increments 5° Function Running torque 53 lb-in (6 Nm) Maximum torque 142 lb-in (16 Nm) Runtime for 90° operating with motor < 2 seconds fail-safe (on power loss) 2 seconds (for GNP19x only) Fail-Safe Operation GNP Actuator Series On initial power-up, and after a power- fail event, the GNP actuators require up to 90 seconds for the capacitors to fully charge. During this time the actuator will respond to positioning commands but will not power-fail until the capacitors are fully charged. Mounting Nominal angle of rotation 90° Maximum angular rotation 95° Shaft size 1/4- to 3/4-inch (6.4 to 20.5 mm) dia. 1/4- to 1/2-inch (6.4 to 13 mm) square Minimum shaft length 3/4-inch (20 mm) OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-771 October 31, 2019 Siemens Industry, Inc. Page 3 Housing Enclosure NEMA 1 IP54 according to EN 60 529 (limited positions; see OpenAir® GNP/GAP Series Installation Instructions [129-541]) Material Die-cast aluminum alloy Gear lubrication Silicone-free Ambient Conditions Ambient temperature operation -0°F to 122°F (-18°C to 50°C) storage/transport -26°F to 158°F (-32°C to 70°C) Ambient humidity (non-condensing) 95% rh Agency Certification Conformity UL listed UL 873 cUL listed C22, 2 No. 24-93 Electromagnetic compatibility (EMC) 2004/108/EC NOTE: These devices were approved for installation in plenum areas by Underwriters Laboratories, Inc. (UL) per UL 1995. Miscellaneous Cable length 3 feet (0.9 m) length Life cycle Designed for over 100,000 full stroke cycles and a minimum of seven million repositions at rated torque and temperature Dimensions 8-3/8-in. H × 3-1/4-in. W × 2-3/8-in. D (212 mm H × 83 mm W × 60 mm D) Shipping weight 3 lbs 6 oz Service Parts 985-098 Adjustment Tool. 985-092 Anti-Rotation (Mounting) Bracket. Figure 1. Series Service Parts. Operation 2-position control Two-position control requires three wires. Apply 24 Vac/dc power to wire 1 (red) and wire 2 (black). Applying a 24 Vac/dc control signal to wire 7 (orange) causes the actuator to rotate counterclockwise. When the operating voltage is removed from wire 7 (orange), the actuator rotates clockwise. Floating control The actuator’s angle of rotation is proportional to the length of time the signal is applied. A 24 Vac/dc control signal to wire 8 (gray) causes the actuator to rotate clockwise. A 24 Vac/dc control signal to wire 7 (orange) causes the actuator to rotate counterclockwise. With no control signal applied, the actuator holds its position. Modulating control Apply a continuous 0(2) to 10 Vdc or 0(4) to 20 mA control signal between wire 8 (gray) and wire 2 (black) to operate the damper actuator. The angle of rotation is proportional to the control signal. A 0 to 10 Vdc modulating output signal is available between wire 9 (pink) and wire 2 (black) to monitor the position of the actuator. Technical Instructions OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in Rotary, Electronic Damper Actuators Document Number 155-771 October 31, 2019 Page 4 Siemens Industry, Inc. Fail-safe In the event of a power failure, the GNP fail-safe actuator returns to the fail-safe position (see Figure 5.) NOTE: The operation described above is valid for the factory default setting for rotation direction (see Figure 5 and Figure 6). Life expectancy An improperly tuned loop will cause excessive repositioning that will shorten the life of the actuator. Mechanical Range Adjustment Figure 2. Mechanical Range Adjustment. Dual Auxiliary Switch Figure 3. Actuator rotary range with the shaft adapter mounted at position 0. Setting range for Switches A and B Setting step: 5° Switching hysteresis: 2° To change the settings of A and B: 1. Make sure the actuator is in the 0, fail-safe position. The scale is valid only in the 0 position. 2. Use the adjustment tool provided with the actuator to turn the switch adjustment dials to the desired setting at which a signal is to be given. Factory setting: Switch A = 5° Switch B = 85° Figure 4. NOTE: Use the long arm of the "†" to point to the position of Switch A. Use the narrower tab on the red ring to point to the position of Switch B. OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-771 October 31, 2019 Siemens Industry, Inc. Page 5 Actuator Operation Settings • The black position indicates the active switch setting. • For Siemens FHC/LRC pulsed control signal applications, see Figure 7 . • On initial power-up, and after a power-fail event, the GNP actuators require up to 90 seconds to fully charge their capacitors. During this time the actuator will respond to positioning commands, but will not power-fail until the capacitors are fully charged. Figure 5. Setting. Figure 6. Siemens Factory Default Setting. Technical Instructions OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in Rotary, Electronic Damper Actuators Document Number 155-771 October 31, 2019 Page 6 Siemens Industry, Inc. Siemens FHC/LRC Pulsed Control Signal Actuator Action Wire 7 (Orange) Wire 8 (Gray) Wire 7 (Orange) Wire 8 (Gray) Rotate clockwise 24V 24V — — Rotate counterclockwise — — 24V 24V Hold position 24V — 24V — Hold position — 24V — 24V Figure 7. Pulsed Control Signal. CAUTION: Unused wires must be properly terminated. Wiring All wiring must conform to NEC and local codes and regulations. Use earth ground isolating step-down Class 2 transformers. Do not use autotransformers. The maximum rating for a Class 2 step-down transformer is 100 VA. Determine the supply transformer rating by summing the VA ratings of all actuators and all other components used. It is recommended that one transformer power no more than 10 actuators (or 80% of its VA). WARNING: Mixed switch operation is not permitted to the switching outputs of both auxiliary switches (A and B). Either AC line voltage from the same phase must be applied to all six outputs of the dual auxiliary switches, or UL-Class 2 voltage (SELV for CE conformance) must be applied to all six outputs. NOTE: With plenum cables only UL-Class 2 voltage (SELV for CE conformance) is permitted. OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in, Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-771 October 31, 2019 Siemens Industry, Inc. Page 7 Wiring, Continued WARNING: Installations requiring Conformance: • Except for the auxiliary switches (See Warning above) all wiring for 24 Vac/dc actuators must only be safety extra-low voltage (SELV) or protective extra-low voltage (PELV) per HD384. • Use safety transformers per EN61558 with double isolation, designed for 100% duty-cycle for supplying SELV or PELV circuits. • Over-current protection for supply lines is maximum 10A. Wire Designations Each wire has the standard symbol printed on it. See Table 2. Table 2. Wire Designations. Connecting Standard Symbol Function Color Color Symbol 24 Vac/dc Actuator 1 Supply Red RD 2 Common Black BK 7 2-position control signal Floating (CCW) Control signal Orange OG 8 Modulating: 0 (2) to10 Vdc/0 (4) to 20 mA Floating: (CW) Control signal Gray GY 9 Feedback: 0 to 10 Vdc Pink PK Auxiliary Switches S1 Switch A Common Gray/red GYRD S2 Switch A N.C. Gray/blue GYBU S3 Switch A N.O. Gray/pink GYPK S4 Switch B Common Black/red BKRD S5 Switch B N.C. Black/blue BKBU S6 Switch B N.O. Black/pink BKPK Technical Instructions OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in Rotary, Electronic Damper Actuators Document Number 155-771 October 31, 2019 Page 8 Siemens Industry, Inc. Wiring Diagrams CAUTION: Unused wires must be properly terminated. 2-Position Control NOTE: Two-position control requires three wires. Figure 8. Two- Position Wiring Diagram. Floating Control Figure 9. Floating Control Wiring Diagram. Modulating Control Figure 10. Modulating Control Wiring Diagram. Service WARNING : Do not open the actuator. If the actuator is inoperative, replace the unit. OpenAir GNP/GAP Fail-Safe/Fail-in-Place 53 lb-in Rotary, Electronic Damper Actuators Technical Instructions Document Number 155-771 October 31, 2019 Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. OpenAir is a registered trademark of Siemens Schweiz AG. Other product or company names mentioned herein may be the trademarks of their respective owners. © 2019 Siemens Industry, Inc. Siemens Industry, Inc. Smart Infrastructure 1000 Deerfield Parkway Buffalo Grove, IL 60089-4513 USA Tel. +1 847-215-1000 Your feedback is important to us. If you have comments about this document, please send them to SBT_technical.editor.us.sbt@siemens.com Document No. 155-771 Printed in the USA Page 9 Troubleshooting WARNING: To avoid injury or loss of life, pay attention to any hazardous voltage (For example, 120 Vac) when performing checks. • Check that the wires are connected correctly. • Check that DIP switches are set correctly, if used. • Use a Digital Multimeter (DMM) to verify that the operating voltage is within range. If the actuator is not working, check the damper for blockage. If blocked, remove the obstacle and cycle the actuator power off and on. The actuator should resume normal operating mode. Dimensions Figure 11. GNP/GAP Dimensions in Inches (Millimeters). Next >