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Related Manuals for Ros PT-25FB-24VDC-RS-485
Summary of Contents for Ros PT-25FB-24VDC-RS-485
- Page 1 RS-485 CONTROLLED UNDERWATER POSITIONERS MODEL PT-25FB-24VDC-RS-485 MODEL R-25FB-24VDC-RS-485 OPERATING AND MAINTENANCE MANUAL SERIAL NUMBER: __________ SALES ORDER: __________ 5618 Copley Drive San Diego, CA 92111-7902 TEL: (858) 565-8500 FAX: (858) 565-8808 www.rosys.com 20-02245 REV E...
- Page 2 In other words, multiple RS-485 loads/nodes can be interconnected via a single serial communication bus line. ROS has adopted RS-485 half duplex, 8-bit data, one stop bit, no parity, no hardware flow control, and 9.6/19.2/57.6 kbps as standards.
- Page 3 POWER SOURCE All ROS RS-485 products are designed to be powered with DC voltage only. It is essential that power delivered to any VDC device be free of electrical noise. Switching power supplies are among the most common power source devices, due to their size and efficiency.
- Page 4 POWER NETWORK CONNECTIONS When a video camera is attached to the network, it is crucial that common power connections are made at the power supply end of the cable (see figure 1). It is highly recommended to provide a separate pair of power conductors whenever a video camera is connected to the network.
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Page 5: Revision Page
REVISION PAGE DESCRIPTION DATE INITIALS Added Application Note page 8/16/06 Added R-25FB-24VDC-RS-485 12/12/06 SEE ECO #1251 07/14/08 SEE EC-00605 02JUL10 SEE EC-01190 18JAN13 20-02245 REV E... -
Page 6: Warranty
This warranty shall be governed by the laws of the State of California. In the event the defect is determined to be within the terms of this warranty, then ROS agrees to repair and/or replace (at ROS’s discretion) the product of defective portion at no charge to the Purchaser. -
Page 7: Customer Assistance
CUSTOMER ASSISTANCE ROS, Inc. uses a worldwide network of stocking distributors and representatives who are familiar with our products and are able to provide assistance during installation and/or operation of these products. If you have any questions or problems with this product that are not covered by this manual or instruction, please contact our agent in your area or contact us directly by phone or fax or E-mail. -
Page 8: Table Of Contents
TABLE OF CONTENTS APPLICATION NOTE ..................... II REVISION PAGE ......................V WARRANTY ........................VI CUSTOMER ASSISTANCE ..................VII INTRODUCTION ......................1 GENERAL DESCRIPTION ..................... 2 SPECIFICATIONS ......................3 CONNECTOR WIRING ....................5 INSTALLATION AND OPERATION ................6 OPERATIONAL CHECK ....................6 INSTALLATION ...................... -
Page 9: Introduction
For problems or questions not covered in this manual, please contact the factory or one of our authorized representatives. ROS Inc, reserves the right to change or modify designs or specifications as part of its continuing product improvement program. NOTE: Positioner operation is normally under operator control from a remote computerized control unit. -
Page 10: General Description
GENERAL DESCRIPTION The model PT-25(FB)-24VDC-RS-485 Pan and Tilt and the R-25(FB)-24VDC-RS-485 rotator are designed to remotely orient underwater, or in-air, TV and photographic cameras, lights, acoustic equipment, and other instrumentation. It is designed to handle moderate to heavy payloads. Please refer to the torque curves in this manual for torque/speed data. -
Page 11: Specifications
Torque 33 lbs/ft (14 Nm) minimum @ 5 degree/sec Harmonic Gear Backlash 36 arc minutes (0.6 degrees) Network-Ability Up to 32 ROS RS-485 nodes sharing the same cable for power and communication Safety Mechanism Slip/stall detection MECHANICAL Dimensions and weights... - Page 12 Depth Rating Air-Filled 30 m (100 ft.) Oil-Filled 3,000 m (9,842 ft) Operating Temperature C to +50 C (-4 F to 140 PT-25 with 160:1 gears Torque versus Rotation Speed Rotation Speed (degrees/second) PT-25 with 160:1 gears Current Draw versus Rotation Speed Rotation Speed (degrees/second) 20-02245 REV E...
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Page 13: Connector Wiring
TORQUE CURVES CONNECTOR WIRING The standard connector pin functions for the four-contact LPMBH-4-MP as well as the eight-contact 5507-1508 underwater connectors are shown below. Alternate customer specified connectors and wiring standards are available, and details of these configurations are normally included in the manual Addendum. CONNECTOR PIN CONNECTION-FUNCTION DC Common... -
Page 14: Installation And Operation
EQUIPMENT MOUNTING Four 3/8-16 tapped holes in the output shaft are provided for this purpose. A standard mounting plate as described above is available from ROS, and special mounting clamps and saddle brackets can be provided if necessary. The RS485 controlled positioners were designed to handle reasonable payloads commensurate with the torque curve. -
Page 15: Controlling The Unit
Mount equipment as close as possible to the output shaft. This minimizes bearing drag forces on the axis. Mount the equipment so that the center of gravity is close to the center of axis to minimize torque requirements. In some cases it is advantageous to add counterweights to achieve a more balance configuration. -
Page 16: Interconnection
The other end of the cable attaches to a controller which provides the required power to the connector pins as well as control signals using RS-485 protocol. Details on this protocol are included in a separate manual (21-30022). Contact Customer Service personnel at ROS Inc., if further assistance is required. 20-02245 REV E... -
Page 17: Maintenance
MAINTENANCE The RS-485 Controlled positioners were designed to provide a long lifetime of service with minimal maintenance. If the positioner is oil-filled, the recommended routine maintenance is limited to checking the compensating fluid volume. For other maintenance, we recommend the positioner be returned to the factory. -
Page 18: Seal Replacement
Carefully remove the two seal screws in the end cap. If the unit is oil- filled, allow the oil to drain out before continuing. Remove the stainless steel ring, which retains the end cap. Remove end cap, using a special end cap pulling tool, thread the two ¼- 20 bolts into the seal screw holes. -
Page 19: Motor Removal And Replacement
If defective, the entire motor assembly including the motor plate and the attached gears should be returned to ROS for repair or replacement. If return is not possible, the motor, motor plate, and harmonic gear components must be disassembled to replace the motor. -
Page 20: End Cap Replacement
Remove the three flat head screws, which attach the motor plate to the motor assembly. Replace the motor assembly. Mount the new motor using a removable thread retainer and re-attach the wave generator to the motor shaft. Clean exposed drive surfaces of the harmonic drive components and apply a liberal coating of high pressure, lithium-bearing grease to all components. - Page 21 SPRING-LOADED BELLOFRAM: When the pan and tilt is sealed except for the pan axis, insert an appropriately sized screw with a nut on it into the hole in the compensator cover. Use the screw to draw the piston back and the nut to retain it thus relieving any pressure on the compensator. Add compensating fluid (Shell Spindle Oil or equivalent) to the level of the shaft snap ring groove.
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Page 22: Appendix
APPENDIX 20-10218 Installation/Outline, PT-25 20-02238 Assy, PT-25FB-24VDC-RS-485-AIR-AL, 160:1 Gears 20-02246 Assy, PT-25FB-24VDC-RS-485-OIL-AL, 160:1 Gears 20-02247 Assy, PT-25FB-24VDC-RS-485-AIR-SS, 160:1 Gears 20-02216 Wiring Diagram, PT-25FB-24VDC-RS-485 20-10004 Installation/Outline, R-25DC-FB, AIR 20-10035 Assy, R-25FB-24VDC-RS-485-AIR-AL, 160:1 Gears 20-10005 Installation/Outline, R-25DC-FB, OIL 20-10036 Assy, R-25FB-24VDC-RS-485-OIL-AL, 160:1 Gears...
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