® PT175-24P PT180 Series PT270 Series PT280 Series Light Duty Pan/Tilt Maintenance/ Service Manual C323SM (9/98) Pelco • 3500 Pelco Way, Clovis • CA 93612-5699 USA • www.pelco.
CONTENTS Section Page 1.0 GENERAL .................................................................................................. 3 1.1 IMPORTANT SAFEGUARDS AND WARNINGS ............................... 3 2.0 DESCRIPTION .......................................................................................... 4 2.1 MODELS ............................................................................................ 4 3.0 MAINTENANCE ........................................................................
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. Unless the unit is specifically marked as a NEMA Type 3, 3R, 3S, 4, 4X, 6, or 6P enclosure, it is designed for indoor use only and it must not be installed where exposed to rain and moisture. 3.
2.0 DESCRIPTION The PT175-24P is a light duty, indoor/outdoor pan and tilt unit capable of handling enclosure, camera and lens combinations weighing up to 20 lb. The PT175-24P is equipped with 24 VAC motors. The PT180-24P and PT180-24SL are light duty, indoor pan/tilt units capable of handling all enclosure, camera and lens combinations up to 20 lb (9.08 kg) in weight. The PT180-24P and PT180-24SL are equipped with 24 VAC motors.
3.0 MAINTENANCE PT175-24P Only If your pan/tilt is installed in an inverted position, apply RTV silicone sealant to the areas circled in Figure 1 after you reinstall the cover. 3.1 RESETTING POTENTIOMETERS IMPORTANT: Be very careful when resetting potentiometer switches. Be sure that the pan/tilt has been centered between maximum pan and tilt travel, regardless of the adjustable limit stops.
3.2 SERVICING DRIVE CHAIN ASSEMBLIES Inspect the pan/tilt unit every six months to ensure trouble-free operation and an extended product life. Harsh environments and/or continuous motion applications may require more frequent maintenance. Please read all of the instructions that follow before servicing the pan/tilt. To begin, remove the three screws on the front of the pan/tilt housing and lift the cover to gain access to the pan and tilt motor assemblies. 3.2.
4.0 EXPLODED ASSEMBLY DIAGRAMS Figure 4 .
Table A.
Table B.
Figure 5.
Table C.
Table C.
Table D. PT180 Series Hardware List Item Qty A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AA BB CC DD EE FF GG HH II 4 4 10 4 6 6 2 12 2 3 3 4 3 3 8 4 1 6 3 3 11 11 2 8 4 6 1 4 2 1 3 2 1 1 2 Description Acorn Nut, 6-32 SS Screw, 8-32 x 1/2” Soc C/S SS Split lock washer, #8 SS Set Screw, 6-32 x 3/4” SS Hex Nut, 6-32 SS Washer, internal star, #6 SS Screw, 8-32 x 1/2” Pan Phil SS Washer, Flat #10 AN960C-10 x .
Figure 6.
Table E.
Table F.
Figure 7.
Figure 8.
Table G.
Table G. PT280 Series Mechanical Parts List (continued) 20 Item Qty 48 49 50 51 52 53 1 1 1 1 1 1 2 Description Tilt potentiometer bracket (P/PP & SL/PP) Pan spindle preset gear (P/PP & SL/PP) Tilt shaft preset gear (P/PP & SL/PP) 9-position connector (P/PP and SL/PP) Dual arm potentiometer (SL/PP) Precision 10K potentiometer (SL/PP) Precision 10K potentiometer (P/PP) Part Number 2804015COMP 2804016COMP 2804020COMP CON206705-1 POTDARM010.0K POT010.0K POT010.
Table H.
5.0 WIRING DIAGRAMS P1 CONNECTOR COM 1 BRN S1 LEFT RIGHT 3 7 RED BLU C1 M1 S2 S3 UP DOWN 6 5 YEL ORG GND 8 GRN QTY SYMBOL 1 1 1 1 1 4 4 1 9 1 C1 C2 M1 M2 — S1-S4 — P1 — — C2 M2 S4 DESCRIPTION CAPACITOR, 60 MF, 200V CAPACITOR, 15 MF, 100V PAN MOTOR AND GEARHEAD ASSY TILT MOTOR TILT MOTOR GEARHEAD SWITCH SWITCH ACTUATOR BASE CONNECTOR BASE CONNECTOR CRIMP PINS MATING CONNECTOR ASSY PART NUMBER CAPU0060.0/200N CAPU0015.
INPUT CONNECTOR 1 4 2 5 8 BRN LEFT RIGHT 3 7 ORG VIO 7 10 13 1 3 6 9 12 COMMON S1 C1 M1 C2 M2 11 S2 14 DOWN LEFT 5 6 GRAY BLUE S3 S4 VIDEO 2 RED VIDEO SHEILD CAMERA 4 9 YEL WHITE CAMERA AC 14 W/YEL J2 LENS CONNECTOR IRIS FOCUS ZOOM LENS COMM SFTY GRND 10 11 12 13 8 BLACK W/BRN W/RED W/ORG GREEN 1 2 3 4 5 QTY SYMBOL 1 1 1 1 1 14 4 1 1 1 1 1 C1 C2 M1 M2 J2 – S1-S4 – – – – – DESCRIPTION CAPACITOR, 15 MFD, 100V CAPACITOR, 60 MFD, 200V PAN MOTOR w/ GEARHEAD MOTOR (ONLY)
P1 CONNECTOR COM 1 BRN S1 LEFT RIGHT 3 7 RED BLU C1 M1 S2 S3 UP DOWN 6 5 YEL ORG GND 8 GRN C2 M2 S4 Quantity Symbol Description 2 C1-C2 Capacitor .68/400 (PT270P) CAPU000.68/400 2 C1-C2 Capacitor 15 MFD 100V (PT270-24P) CAPU0015.0/100N 2 C1-C2 Capacitor 0.22 MFD 600V (PT270P/230) CAPU000.
Table I.
28–PIN PAN/TILT SPINDLE CONNECTOR COMMON S1 LEFT ORG VIO RIGHT C1 M1 C2 M2 S2 S3 GRY DOWN UP BLU S4 1 PAN PRESET 19 2 GRN/WHT PAN 3 TILT PRESET 20 2 VIO/WHT 1 TILT 3 PRESET GND 17 RED/WHT P2 8 PRESET + 5V 18 BLK/WHT 6 FOCUS 11 WHT/BRN 3 ZOOM 12 WHT/RED 2 9–PIN LENS COMM 13 WHT/ORG 4 LENS IRIS 10 BLK 1 CONNECTOR ZOOM PRESET 23 GRY/WHT 7 FOCUS PRESET 24 YEL/WHT 9 GROUND 8 GRN 5 CAM POWER 9 WHT CAM POWER 14 WHT/YEL VIDEO 2 RED VIDEO SHIELD
28–PIN PAN/TILT SPINDLE CONNECTOR COMMON ORG LEFT RIGHT C1 M1 C2 M2 VIO S1 DOWN GRY UP BLU SL (360˚) PRESET 25 S2 WHT/GRY 1 3 PAN PRESET 19 2 PAN WHT/BLK/ORG 4 TILT PRESET 20 2 WHT/BLK/YEL 1 TILT 3 PRESET GND 17 WHT/BLK/RED P2 8 PRESET + 5V 18 BLK/WHT 6 FOCUS 11 WHT/BRN 3 ZOOM 12 WHT/RED 2 9–PIN LENS COMM 13 WHT/ORG 4 LENS IRIS 10 BLK 1 CONNECTOR ZOOM PRESET 23 WHT/VIO 7 FOCUS PRESET 24 WHT/GRN/BLK 9 GROUND 8 GRN 5 CAM POWER 9 WHT CAM POWER
6.0 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: • Five years on FT/FR8000 Series fiber optic products. • Three years on Genex® Series products (multiplexers, server, and keyboard).
