® PT1250DC Series Heavy Duty Pan/Tilt Installation/ Operation Manual C373M-F (10/98) 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 2.2 RATINGS ...............................................................
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 PT1250DC is a heavy duty pan/tilt ruggedly constructed to comfortably operate with loads up to 100 lbs (45.36 kg). High torque D.C. motors with heavy duty adjustable worm gear final drive assemblies eliminate backlash and drifting. Equally important to the operator is dynamic braking for instantaneous stopping. Extremely serviceable, the PT1250DC features access to all electrical and mechanical components.
3.0 INSTALLATION CAUTION: Pan/tilts in the PT1250DC Series are designed for upright or inverted operation and should never be mounted horizontally. Pan/tilts in the PT1250DC Series are designed to mount onto a horizontal surface in the upright or inverted position. In order to ensure proper wiring and system operation of all components, it is recommended that you test the pan/tilt and the associated control equipment in your facility before field installation. Refer to Sections 3.3 through 3.4. 3.
Table A . Maximum Cable Distances Wire Size 20 AWG 18 AWG 16 AWG Maximum Distance 635 feet (193.55 m) 1,015 feet (309.37 m) 1,610 feet (490.73 m) Distances are calculated with both motors (pan/tilt) running and assuming a 10% voltage drop in cable.
3.3.1 Mating Connector Assembly NOTE: Contacts cannot be removed from the connector without the use of the appropriate AMP extraction tool (ZT305183), which is available from Pelco. NOTE: When a pan/tilt is mounted in the inverted position, the LEFT/ RIGHT and UP/DOWN functions are reversed during operation. To correct this problem, reverse the LEFT/RIGHT functions in the control cable (pins 3 and 7) at the pan/ tilt or control and the UP/DOWN functions (pins 5 and 6) at the pan/ tilt or control.
Figure 3.
Figure 4.
3.4 LIMIT STOP ADJUSTMENTS WARNING: Do not operate the pan/tilt without limit stops. Do not attempt to adjust the limit stops while the unit is operating. Personal injury or damage to the unit may result. Do not remove or reposition the fixed limit stop on the pan/tilt. DAMAGE WILL OCCUR. To set pan/tilt limit stops, perform the following steps. Refer to Figure 5. 1. Loosen the pan limit stops. 2. Turn the control unit on. Pan the unit to the right until the desired right pan limit is reached. 3.
4.0 OPERATION Refer to the manual for your control equipment for operating the pan/tilt.
5.0 TROUBLESHOOTING Some common problems encountered with pan/tilt systems include miswiring, overloading, and not using the units for the correct application. If the pan/tilt unit fails to operate, do the following: 1. Check the fuse in the control unit. If the fuse is bad, replace it. 2. If the fuse blows after replacing it, check the control cable between the control unit and the pan/tilt for shorts, high resistance, or opens. 3.
6.0 MAINTENANCE 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. 6.
7.0 SPECIFICATIONS MECHANICAL Pan: Speed Torque 0-355° movement in horizontal plane 6°/sec ±1° (No load condition) 50ft/lb with specified voltage Tilt: Speed Torque ±90° movement in vertical plane 3°/sec ± .5° (No load condition) 20 ft/lb with specified voltage Maximum Load: Gearing: 100 lb (45.4 kg) at 5 inches (12.
GENERAL Environment: Indoor/outdoor; completely weatherproofed Temperature: -10°F to 120°F (-23°C to 49°C) Construction: Aluminum casting and plate Finish: Gray polyester powder coat Weight: 55 lb (25 kg) Shipping Weight: 59 lb (26.72 kg) Dimensions: See Figure 7 (Design and product specifications subject to change without notice.) Figure 7.
8.0 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).