1. Installation and servicing should be done only by qualified service personnel and conform to all local codes.
2. The weight of the camera/lens and enclosure must not exceed 40 lb (18.14 kg) with 12 VDC pan and tilts or 52 lb (23.59 kg) with 24 VAC or
120 VAC pan and tilts.
3. Only use replacement parts Pelco recommends.
4. After replacing/repairing the unit’s electrical components, conduct a resistance measurement between line and exposed parts to verify the
exposed parts have not been connected to line circuitry.
5. Installation methods and materials should be capable of supporting four times the combined weight of the enclosure, pan and tilt, camera,
and lens.
The product and/or manual may bear the following marks:
This symbol indicates that dangerous voltage constituting a risk of electric shock is
present within this unit.
CAUTION:
This symbol indicates that there are important operating and maintenance instructions
in the literature accompanying this unit.
To reduce the risk of electrical shock, do not remove cover. No user-serviceable parts
inside. Refer servicing to qualified service personnel.
RISK OF ELECTRIC SHOCK.
DO NOT OPEN.
C342SM-A (5/06)3
Description
PT780 DESCRIPTION
The PT780 Series pan and tilt units are designed for medium duty, indoor/outdoor use.
Only Legacy Series enclosures can be mounted on the pan and tilt units. These enclosures are EH4700L and EH5700L environmental enclosures
and the EH8106L pressurized enclosure.
You can easily removee the clamshell covers from the sides of the pan and tilt units to access all internal parts without having to remove the
camera enclosure. This makes servicing the units and adjusting the pan and tilt limit stops easy.
PT780 MODELS
The PT780 Series consists of the following models:
PT780PHeavy-duty, indoor/outdoor pan and tilt, 120 VAC.
PT780P/PPPT780P with preset positioning capabilities.
PT780SLPT780P with 360° pan rotation.
PT780SL/PPPT780SL with preset positioning capabilities.
PT780VSHeavy-duty, indoor/outdoor, variable-speed pan and tilt, 12 VDC.
PT780VS/PPPT780VS with preset positioning capabilities.
PT780/VSSLPT780VS with 360° pan rotation.
PT780-VSSL/PPPT780-VSSL with preset positioning capabilities.
PT780-24P/PPPT780-24P with preset positioning capabilities.
PT780-24SLPT780-24P with 360° pan rotation.
PT780-24SL/PPPT780-24SL with preset positioning capabilities.
4C342SM-A (5/06)
Maintenance
If you need to remove the enclosure, protect the RediLINK
connection. Also, damage to the pan and tilt unit or enclosure could occur when power is turned on.
The following servicing should be done every six months with average use.
1. Remove the PT780’s outer casing.
a.Remove the Phillips screw on each side of the pan and tilt unit.
b.Place your hands under the cover halves. Exert a strong, upward force to release the covers from their internal latching devices.
c.Pull the cover halves away from the pan and tilt unit. Set the covers down or hang them by the eyelets inside the covers. (The wire
and hook on which to hang the covers is not provided.)
2. Inspect the gaskets around the cover, tilt shaft, and spindle for damage.
3. Refer to Figure 1. It shows the parts locations of the tilt assembly. Look for similar orientations of parts when adjusting the pan assembly.
4. Check the backlash adjustment.
Backlash is the slack or binding in a pan and tilt base mount. Determine backlash by lifting the maintenance assembly, grasping the base,
and wiggling it. There should not be any play or binding between the gear (A) and worm drive (B). Play or binding indicates a backlash
problem.
•One backlash problem involves a worm and worm gear connection loose enough to cause slipping or tight enough to cause binding.
•The second involves a too-loose or too-tight chain, usually causing symptoms similar to the worm and worm gear problem–slipping or
binding.
a.Verify that the worm drive (B) is fully seated in the worm gear (A). If it is not:
(1)Locate the worm-driven gear for either the pan or the tilt motor linkage. Loosen the three hex screws (F) holding the worm in
place, but leave enough thread in place to hold the assembly on the mount.
(2)Using your thumbs, gently move the worm forward or pull the assembly back from the worm gear to either tighten or loosen the
gear spacing to the worm gear. Move the base of the pan and tilt to check the adjustment.
(3)If you get movement in the base, press a finger down in the middle of the worm assembly. If you get no movement in the base,
use your thumb and forefinger to pull the worm assembly back until you get movement.
(4)When the spacing is correct, tighten the hex screws. Start with the middle screw to ensure proper spacing.
(5)Remove the screw (C) in the gear train nut (D).
(6)Tighten the gear train nut to remove any play.
(7)Line up the hole in the gear train nut with the nearest hole in the gear train bracket (E).
(8)Replace the screw.
™
connector area against moisture, dust, dirt, etc. Failure to do so could result in a bad
C342SM-A (5/06)5
b.Refer to Figure 1. 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 1.)
(2)Using a screwdriver, pry the motor down (at H) to tighten for the correct chain tension. (You should not be able to freely move the
motor with your finger, nor should it be so tight that it will not move at all as this usually leads to binding.)
(3)Tighten the hex screws.
c.Using a controller, you should now be able to move the PT780 without looseness or binding. If you have any problems, contact Pelco’s
Technical Support Department.
®
5. Lubricate the chains. Use a Teflon
chain lubricant.
6. Replace the covers.
a.Grasp one cover half in each hand and position the covers on each side of the pan and 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, press downward to force the covers into their latches.
d.Replace the screws in the covers.
H
G
Figure 1. Pan and Tilt Adjustments
6C342SM-A (5/06)
Wiring Diagrams
Figure 2. PT780 Series Wiring Diagram
C342SM-A (5/06)7
Exploded Assembly Diagrams
Figure 3. Exploded Assembly Diagram of Mechanical Parts, PT780 Series 24 VAC and 120 VAC Models
8C342SM-A (5/06)
12
8
6
7
4
57
3
2
1
47
46
45
11109
14
15
46
51
50
49
48
44
42
43
17
1613
61
37
21
22
21
60
18
19
20
21
22
23
24
63
64
62
41
40
27
53
26
25
15
14
59
58
39
61
54
38
36
6
29
31
33
34
35
56
55
Figure 4. Exploded Assembly Diagram of Mechanical Parts, PT780 Series 12 VDC Models
C342SM-A (5/06)9
Table A. Mechanical Parts List (Figure 3 and Figure 4)
Refer to Figure 3 for 24 VAC and 120 VAC models.
Refer to Figure 4 for 12 VDC models.
ItemQuantityDescriptionPart Number
1
2
3
4
5
1
2
2
1
1
Cover, pan side
Ball stud
Ball stud bracket
Pan motor, 24 VAC
Pan motor, 120 VAC
Pan motor gearhead, 12 VDC
Pan motor gearhead, 24 VAC and 120 VAC
Pan motor sprocket, 24 VAC amd 120 VAC
Pan motor sprocket, 12 VDC
Pan motor bracket, 24 VAC and 120 VAC
Pan motor bracket, 12 VDC
Tilt preset potentiometer
Tilt potentiometer bracket
Gear, 32 teeth
Gear, 52 teeth
Tilt limit ring
Tilt limit stop
Actuator, with insulator
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:
• Five years on FR/FT/FS Series fiber optic products and TW3000 Series unshielded twisted
pair transmission products.
• Three years on Genex
• Three years on Camclosure
®
Series products (multiplexers, server, and keyboard).
®
and fixed camera models, except the CC3701H-2,
CC3701H-2X, CC3751H-2, CC3651H-2X, MC3651H-2, and MC3651H-2X camera models,
which have a five-year warranty.
• Three years on PMCL200/300/400 Series LCD monitors.
• Two years on standard motorized or fixed focal length lenses.
• Two years on Legacy
®
, CM6700/CM6800/CM9700 Series matrix, and DF5/DF8 Series
fixed dome products.
®
®
• Two years on Spectra
, Esprit
™
, ExSite
, and PS20 scanners, including when used in
continuous motion applications.
• Two years on Esprit
• Two years (except lamp and color wheel) on Digital Light Processing (DLP
The lamp and color wheel will be covered for a period of 90 days. The air filter is not
®
and WW5700 Series window wiper (excluding wiper blades).
®
) displays.
covered under warranty.
• Eighteen months on DX Series digital video recorders, NVR300 Series network video
recorders, and Endura
™
Series distributed network-based video products.
• One year (except video heads) on video cassette recorders (VCRs). Video heads will be
covered for a period of six months.
• Six months on all pan and tilts, scanners or preset lenses used in continuous motion
applications (that is, preset scan, tour and auto scan modes).
Pelco will warrant all replacement parts and repairs for 90 days from the date of Pelco
shipment. All goods requiring warranty repair shall be sent freight prepaid to Pelco, Clovis,
California. Repairs made necessary by reason of misuse, alteration, normal wear, or accident
are not covered under this warranty.
Pelco assumes no risk and shall be subject to no liability for damages or loss resulting from
the specific use or application made of the Products. Pelco’s liability for any claim, whether
based on breach of contract, negligence, infringement of any rights of any party or product
liability, relating to the Products shall not exceed the price paid by the Dealer to Pelco for
such Products. In no event will Pelco be liable for any special, incidental or consequential
damages (including loss of use, loss of profit and claims of third parties) however caused,
whether by the negligence of Pelco or otherwise.
The above warranty provides the Dealer with specific legal rights. The Dealer may also have
additional rights, which are subject to variation from state to state.
If a warranty repair is required, the Dealer must contact Pelco at (800) 289-9100 or
(559) 292-1981 to obtain a Repair Authorization number (RA), and provide the following
information:
1. Model and serial number
2. Date of shipment, P.O. number, Sales Order number, or Pelco invoice number
3. Details of the defect or problem
If there is a dispute regarding the warranty of a product which does not fall under the
warranty conditions stated above, please include a written explanation with the product
when returned.
Method of return shipment shall be the same or equal to the method by which the item was
received by Pelco.
RETURNS
In order to expedite parts returned to the factory for repair or credit, please call the factory at
(800) 289-9100 or (559) 292-1981 to obtain an authorization number (CA number if returned
for credit, and RA number if returned for repair).
All merchandise returned for credit may be subject to a 20% restocking and refurbishing
charge.
Goods returned for repair or credit should be clearly identified with the assigned CA or RA
number and freight should be prepaid. Ship to the appropriate address below.
If you are located within the continental U.S., Alaska, Hawaii or Puerto Rico, send goods to:
Service Department
Pelco
3500 Pelco Way
Clovis, CA 93612-5699
If you are located outside the continental U.S., Alaska, Hawaii or Puerto Rico and are
instructed to return goods to the USA, you may do one of the following:
If the goods are to be sent by a COURIER SERVICE, send the goods to:
Pelco
3500 Pelco Way
Clovis, CA 93612-5699 USA
If the goods are to be sent by a FREIGHT FORWARDER, send the goods to:
Pelco c/o Expeditors
473 Eccles Avenue
South San Francisco, CA 94080 USA
Phone: 650-737-1700
Fax: 650-737-0933
This equipment contains electrical or electronic components that must be recycled properly to comply with Directive 2002/96/EC of the European Union
regarding the disposal of waste electrical and electronic equipment (WEEE). Contact your local dealer for procedures for recycling this equipment.
REVISION HISTORY
Manual #DateComments
C342SM12/98Original version.
C342SM-A5/06Updated parts list. Reformatted manual.