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®
PT780-24P/PPPSA
PT780-24SL/PPSA
Pan/Tilts
Installation/
Operation Manual
C342M-PSA (11/98)
Pelco • 300 W. Pontiac Way, Clovis • CA 93612-5699 USA • Pelco Online @ http://www.pelco.com
In North America and Canada: Tel (800) 289-9100 or FAX (800) 289-9150 • DataFAX (800) 289-9108
International Customers: Tel (1-559) 292-1981 or FAX (1-559) 348-1120 • DataFAX (1-559) 292-0435
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CONTENTS Section Page 1.0 GENERAL ................................................................................................... 5 1.1 IMPORTANT SAFEGUARDS AND WARNINGS ...............................5 2.0 DESCRIPTION .......................................................................................... 6 2.1 MODELS ............................................................................................ 6 3.0 INSTALLATION ............................................................
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LIST OF ILLUSTRATIONS Figure Page 1 Connector Assembly ..........................................................................9 2 Wiper On/Off Connection ...................................................................9 3 Removing the Screws .......................................................................12 4 Releasing the Covers .......................................................................12 5 Removing the Covers ...........................................................
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(This page intentionally left blank.) 4 4 Pelco Manual C342M-PSA (11/98)
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1.0 GENERAL 1.1 IMPORTANT SAFEGUARDS AND WARNINGS Prior to installation and use of this product, the following WARNINGS should be observed. 1. Installation and servicing should only be done by qualified service personnel and conform to all local codes. 2. The weight of the camera/lens and enclosure shall not exceed 52 lb (23.59 kg). 3. Only use replacement parts recommended by Pelco. 4. After replacement/repair of this unit’s electrical components, conduct a resis- tance measurement between li
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2.0 DESCRIPTION The PT780-24P/PPPSA and PT78024SL/PPSA pan/tilt units are designed for me- dium-duty, indoor/outdoor use. The PT780-24P/PPPSA pan/tilt is designed for use with the EH4718L/WPSA and EH4718L/PSA environmental enclosures. The PT780-24SL/PPSA pan/tilt is designed for use with the EH4718LDB/WPSA environmental enclosure. Pelco’s RediLINK™ connector makes it simple and quick to install an enclosure. The weight of the enclosure with camera and lens must not exceed 52 pounds (23.56 kg).
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3.0 INSTALLATION 3.1 MOUNTING NOTE: To insure proper wiring and Attach the pan/tilt unit to a wall or ceiling mount. Follow the instructions that are provided with the mount. Make sure the mounting surface and the selected mount operation of your equipment, it is rec- can support four times the combined weight of the pan/tilt unit and the camera ommended that you test the pan/tilt enclosure (including the camera and lens). The pan/tilt unit weighs approximately unit and associated equipment
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3.3.2 All Control Equipment Except LRD41A11-X Legacy Receiver/Drivers Make the interconnecting cable to link the 37-pin round connector from the pan/tilt unit to the control equipment. For cable requirements, refer to the following tables: Table A: Connector Pin Designations Tables B and C: Requirements to Wire Power to Pan and Tilt Motors To determine the size of wire to use for enclosure power (pins 15 and 16), add together the wattage of the camera and the wattage of the window wiper (if the
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1 CABLE HOUSING A SHELL B CLAMP 2 RUBBER BOOT 3 CABLE 4 SOCKET 5 CABLE PLUG (37-POSITION) Figure 1. Connector Assembly Figure 2. Wiper On/Off Connection Pelco Manual C342M-PSA (11/98) 9
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Table A. 37-Position Connector Pin Designations Pin # Function ENGPT780-24P/PP ENGPT780-24SL/P Coaxial Cable 27/4 Video Signal/Ground • • 30/4 Sync Signal/Ground • • Unshielded Conductors 3 Left • • 7 Right • • 6Up • • 5 Down • • 1 Common • • 8 Safety Ground • • 10 Iris • 11 Focus • • 12 Zoom • • 9 Spare • 14 Spare • 13 Lens Common • • 15 Enclosure Power • • (AC High) 16 Enclosure Power • • (AC Neutral) 31 Heater Blanket (A) (A) (AC High) 32 Heater Blanket (A) (A) (AC Neutral)
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Table B. Requirements to Wire Power to Pan and Tilt Motors Maximum Cable Length* Wire Size 6 Conductors** 7 Conductors*** 24 VAC PT780-24P Models 20 AWG 59 ft. (17.98 m) 118 ft. (35.96 m) 18 AWG 94 ft. (28.65 m) 188 ft. (57.30 m) 16 AWG 149 ft. (45.41 m) 298 ft. (90.83 m) * Cable distances are based on: 26.4 VAC output from the controller and 10% cable loss with both motors (pan and tilt) running simultaneously ** Six conductors for operating pan and tilt motors: Pin number in 37-pin conne
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3.4 PAN AND TILT LIMIT STOP ADJUSTMENTS 1. Remove the covers. a. Refer to Figure 3 and remove the Phillips screw on each side of the pan/ tilt unit. b. Refer to Figure 4 and place your hands under the cover halves. Exert a strong, upward force to release the covers from their internal latching devices. c. Refer to Figure 5 and pull the cover halves away from the pan/tilt unit. d. Set the covers down or hang them by the eyelets inside the covers (refer to Figure 6). The wire and hook on which to
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2. Adjust the tilt limit stops. Refer to Figure 7 for the location of the tilt limit stops (item 7). Turn the control unit on and tilt the unit to the desired up position. Move the up limit cam until it touches the limit switch actuator. Push the cam against the actuator until it clicks, indicating that the limit switch has opened. Apply Lock-Tite™ to the set screw (item H) and tighten the screw on the cam. Operate the pan/tilt to the desired down position. Move the down limit cam until it touch
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3. Adjust the pan limit stops. Refer to Figure 8 for the location of the pan limit stops. Turn the control unit on NOTE: The SL model does not have and pan the unit to the desired right limit stop. pan limit stops. Move the right limit stop until it touches the limit switch actuator. Push the stop against the actuator until it clicks, indicating that the limit switch has opened. Tighten the screw on the stop. Operate the pan/tilt unit to check for exact positioning and adjust the stop if necess
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3.5 FINAL INSTALLATION 1. If the pan/tilt is installed in an inverted position, refer to Figure 9 and apply RTV silicone (such as Bostik #9732 or equivalent) to the shaded areas of the covers. 2. Replace the covers. a. Refer to Figure 10 and grasp one cover half in each hand and position the covers on each side of the pan/tilt unit. b. Bring the two cover halves together, aligning the two pins in one cover half with the mating holes in the other cover half. c. When the cover halves are together
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00082 Figure 11. Securing the Cover Halves Figure 12. Silicone Application Location for Upright Unit 16 Pelco Manual C342M-PSA (11/98)
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4.0 OPERATION Refer to the manual for your control equipment for operating the pan/tilt unit. If your enclosure has the heater blanket option, it is thermostatically controlled to turn on at 40°F (4.44°C) and turn off at 60°F (15.56°C). The heater blanket allows operation of the pan/tilt unit to -50°F (-45.56°C). 5.0 MAINTENANCE If you need to remove the enclosure, protect the RediLINK™ connector area against moisture, dust, dirt, etc. Failure to do so could result in a bad connection. Also, d
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(7) Line up the hole in the gear train nut with the nearest hole in the gear train bracket (E). (8) Replace the screw. b. Refer to Figure 13. Adjust chain tension, if needed: (1) Locate the pan or tilt motor on the assembly. Loosen the hex screws (G) that hold the motor to its mounting bracket. Depending on which motor assembly you are adjusting, there will be either three (pan) or four (tilt). (Only two screws are shown in Figure 13.) (2) Using a screwdriver, pry the motor down at H to tighten
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6.0 EXPLODED ASSEMBLY DIAGRAMS Figure 14. Exploded Assembly Diagram of Mechanical Parts Pelco Manual C342M-PSA (11/98) 19
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Table D. Mechanical Parts List (Figure 14) Item Quantity Description Part Number 1 1 Cover, pan side 9064003COMP 2 2 Ball stud PT180410000 3 2 Ball stud bracket 9064010COMP 4 1 Pan motor, 24 VAC 5708007 5 1 Pan motor gearhead 1758006 6 1 Pan motor sprocket 5804010ACOMP 7 1 Pan motor bracket 9064006COMP 8 1 Tilt preset potentiometer POTP010.0K* 9 1 Tilt potentiometer bracket 9064012COMP* 10 1 Gear, 32 teeth 28010017* 11 1 Gear, 52 teeth 28010016* 12 1 Tilt limit ring 9004012COMP 13 2 Tilt limit
