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Rugged pan and tilt unit with RS-485 / RS-232 computer
control to remotely orient camera systems, acoustic equipment,
RF and microwave antennas, and other instrumentation.
The PT-25-FB RS-485 / RS-232 pan and tilt provides 45 lb-ft (61
N-m) of output torque on each axis. Heavy-duty ball bearings supporting
the output shaft allow it to accommodate payloads up to 100 lbs
(45 kg). Each axis of the pan and tilt includes a DC brushless
stepper motor coupled to low backlash harmonic gearing. It is
designed to allow stalling of the output shafts without damage
to the gears, the motors, or control electronics.
The RS-485 / RS-232 control enables the pan and tilt to be highly
configurable and precision controllable. By using either the ROS
positioner GUI (graphical user interface) or the ROS communication
protocol for custom software integration you can control unique
features such as: absolute position moves, variable rotation speed, real-time position
feedback, variable braking, programmable software limits, and
networkability of multiple ROS pan and tilts sharing the same
cable. A total of only four wires (two for power; two for communication)
are needed to operate the RS-485 / RS-232 pan and tilts.
Using RS-485 control provides several advantages over RS-232.
RS-485 allows communication over longer lengths of cable (1000
feet) and enables the ability for networking multiple nodes. A
typical computer has the capability of RS-232 communication through
its serial COM ports. Inexpensive devices are readily available
for converting RS-232 to RS-485, USB to RS-485, or Ethernet to
RS-485. The unit may also be controlled by an external joystick.
The PT-25-FB RS-485 / RS-232 pan and tilt is available in two
versions: air-filled or oil-filled. Air-filled pan and tilt units
are used for shallow water applications up to 30 meters depth
and are excellent for above water applications where rain, humidity,
and dust are issues. Oil-filled pan and tilt units are used for
deep water applications up to 3,000 meters depth.
The PT-25-FB RS-485 / RS-232 pan and tilts complement all ROS
underwater lights and underwater
video cameras.
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| PERFORMANCE - PT-25-FB RS485 /
RS232 |
| Power: |
|
| Operating Mode: |
24 - 28 VDC, 1.7 amps (max) per axis @
24 VDC |
| Braking Mode: |
24 VDC, adjustable, 0 mA to 1.2 amps per
axis |
| At Rest (not braking): |
< 100 mA per axis |
| Torque: |
> 45 lb-ft (61 N-m) per axis @ 5 degrees/second |
| Absolute Position Moves: |
+/- 1 degree (including feedback resolution) |
| Acceleration Settings: |
2,4,6,8 and 10 degrees/second2 |
| Rotation Speed: |
Variable, 0.5 to 10 degrees/second (0.08
to 1.7 RPM) |
| Harmonic gear backlash: |
1 arc minute (0.016 degrees) |
| Scan Range (both axes): |
0 to 360 degrees when used with no external
stop collar |
Scan Range with stop collar &
optional yoke bracket: |
12 to 348 degrees pan axis, +/- 90 degrees
tilt axis |
| Feedback Potentiometer: |
Absolute position (1000 ohm wire-wound),
10 bit A/D |
| Resolution: |
+/- 0.5 degrees (30 arc minutes) |
| Control protocol: |
|
| Type: |
RS-485, 2-wire half duplex, 8 data bits,
1 stop bit, no parity, no hardware flow control |
| Flow control: |
Character echo, adjustable communication delay |
| Command protocol: |
ROS Document 21-30022 |
| Supported Baud Rates: |
Factory set to 9.6 KBaud, 19.2 KBaud, or
57.6 KBaud |
| Networkability: |
Up to 32 ROS RS-485 nodes sharing the same
cable for power and communication |
| Safety Mechanism: |
Slip/stall detection |
|
| MECHANICAL - PT-25-FB
RS485 / RS232 |
| Housing Material: |
Anodized 6061-T6 Aluminum |
Electropolished 316 Stainless Steel |
| Height: |
286 mm (11.25 in) |
286 mm (11.25 in) |
| Width: |
|
|
| Air-filled: |
199 mm (7.85 in) |
199 mm (7.85 in) |
| Oil-filled with bellofram: |
243 mm (9.55 in) |
243 mm (9.55 in) |
| Length without connector: |
126 mm (4.95 in) |
126 mm (4.95 in) |
| Main Body Diameter: |
107 mm (4.20 in) |
107 mm (4.20 in) |
| Output Shaft Diameter: |
38.1 mm (1.50 in) |
38.1 mm (1.50 in) |
| Weight in Air: |
|
|
| Air-filled: |
8.7 kg (19.2 lbs) |
10.5 kg (23.2 lbs) |
| Oil-filled: |
9.8 kg (21.5 lbs) |
11.6 kg (25.5 lbs) |
| Weight in Water: |
|
|
| Air-filled: |
4.6 kg (10.2 lbs) |
9.3 kg (20.6 lbs) |
| Oil-filled: |
5.7 kg (12.5 lbs) |
10.8 kg (23.9 lbs) |
| Standard Connector: |
LPBMH-4-MP |
| Housing Mounting: |
Four 3/8-16 threaded holes in output pan shaft |
| Equipment Mounting: |
Four 3/8-16 threaded holes in output tilt shaft |
| Mounts: |
ROS mounting plate and yoke bracket optional |
| External Mechanical Limits: |
ROS stop collar optional |
| Compensator (oil-filled units only): |
Bellofram |
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| ENVIRONMENTAL - PT-25-FB
RS485 / RS232 |
| Operating Depth: |
|
| Air-filled: |
30 m (100 ft) |
| Oil-filled: |
3,000 m (10,000 ft) |
| Operating Temperature: |
up to +50° C (122° F) |
| Storage Temperature: |
-20° C to +60° C (-4° F to
140° F) in air |
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| ROS STANDARD PIN-OUT
- PT-25-FB RS485 / RS232 |
| 1 - DC COMMON
|
| 2 - +24 VDC |
| 3 - RS-485 A |
| 4 - RS-485 B |
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PT-25-FB RS-485 / RS-232 AIR-FILLED PAN AND TILTS
PT-25-FB RS-485 / RS-232 OIL-FILLED PAN AND TILTS
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Remote Ocean Systems
5618 Copley Drive, San Diego, CA 92111
Tel: 858-565-8500 Fax: 858-565-8808
sales@rosys.com |
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