® 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.
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 ......................................................................
LIST OF ILLUSTRATIONS Figure 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Page Connector Assembly .......................................................................... 9 Wiper On/Off Connection ................................................................... 9 Removing the Screws .......................................................................12 Releasing the Covers .......................................................................12 Removing the Covers .................................
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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.
2.0 DESCRIPTION The PT780-24P/PPPSA and PT78024SL/PPSA pan/tilt units are designed for medium-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).
3.0 INSTALLATION 3.1 MOUNTING NOTE: To insure proper wiring and operation of your equipment, it is recommended that you test the pan/tilt unit and associated equipment in your facility before installing it in the field. Refer to Sections 3.2 through 3.4. CAUTION: The PT780 pan/tilt units are designed for upright or inverted (base up) operation. Never mount the pan/tilt horizontally. Attach the pan/tilt unit to a wall or ceiling mount. Follow the instructions that are provided with the mount.
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.
1 CABLE HOUSING A SHELL B 2 RUBBER BOOT 3 CABLE 4 SOCKET 5 CABLE PLUG (37-POSITION) CLAMP Figure 1. Connector Assembly Figure 2.
Table A.
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 18 AWG 16 AWG 59 ft. (17.98 m) 94 ft. (28.65 m) 149 ft. (45.41 m) 118 ft. (35.96 m) 188 ft. (57.30 m) 298 ft. (90.83 m) * NOTE: Operation of the pan/tilt unit at lower than 24 VAC will result in reduced load and speed capability. Cable distances are based on: 26.
3.4 PAN AND TILT LIMIT STOP ADJUSTMENTS 1. 12 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).
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.
3. NOTE: The SL model does not have pan limit stops. Adjust the pan limit stops. Refer to Figure 8 for the location of the pan limit stops. Turn the control unit on and pan the unit to the desired right limit stop. 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 necessary.
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. 3. 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.
00082 Figure 11. Securing the Cover Halves Figure 12.
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.
b. 18 (7) Line up the hole in the gear train nut with the nearest hole in the gear train bracket (E). (8) Replace the screw. 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.
6.0 EXPLODED ASSEMBLY DIAGRAMS Figure 14.
Table D.
Table D.
4 3 5 6 7 F 8 E D C B 2 A 9 H G 1 10 Figure 15. Exploded Assembly Diagram of Mechanical Parts (Modifications to Figure 14) Table E. Mechanical Parts List (Figure 15) 22 Item Quantity Description Part Number 1 2 3 4 5 6 7 8 9 10 1 1 1 1 1 2 2 1 1 1 Pan spindle Upright, pan side Tilt shaft Switch spacer (.176") Switch spacer (.
Figure 16.
Table F. Hardware Parts List (Figure 16) Refer to Figure 15 and Table E for modifications to this list.
7.0 WIRING DIAGRAM Figure 17.
8.0 SPECIFICATIONS MECHANICAL Pan Rotation: Movement in horizontal plane: 0-355° 0-360° (SL model only) Pan Speed: 9°/sec +/-1° (no load condition) Tilt Rotation: 90° down from horizontal 60° up from horizontal Tilt Speed: 3°/sec +/-.5° (no load condition) Torque Output: 23.8 ft. lb (32.3 N.m) at rated voltage and 75° (23.9°C) Maximum Load: 52 lb (23.55 kg) at specified torque Pan/Tilt Drive System: Delrin™ worm gear.
Figure 18.
9.0 WARRANTY AND RETURN INFORMATION WARRANTY Pelco will repair or replace, without charge, any merchandise proved defective in material or workmanship for a period of one year after the date of shipment. Exceptions to this warranty are as noted below: • • • • • • Three years on Genex™ Series (multiplexers, server, and keyboard). Two years on all standard motorized and fixed focal length lenses.
