Pan & Tilt Head Operators Guide Vision 250E Vinten Camera Control Solutions
Vision 250E Pan and Tilt Head Publication Part No. 3793-8 Issue 2 Copyright © Vinten Broadcast Limited 2004 All rights reserved throughout the world. No part of this document may be stored in a retrieval system, transmitted, copied or reproduced in any way including, but not limited to, photocopy, photograph, magnetic or other record without the prior agreement and permission in writing of Vinten Broadcast Limited.
Safety - read this first Warning Symbols in this Operators Guide Where there is a risk of personal injury, injury to others, or damage to the pan and tilt head or associated equipment, comments appear, highlighted by the word WARNING! and supported by the warning triangle symbol. Technical data Weight (complete with pan bar) 7.35 kg (16.2 lb) Height to mounting face 185 mm (7.3 in.) Length 182 mm (7.2 in.) Width 291 mm (11.5 in.
Contents Page Safety - read this first . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Further information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(13) (1) (12) (2) (11) (3) (4) (10) (8) (7) (6) (5) (9) Vision 250E (Left-Hand Side) (1) Slide plate clamp (2) Telescopic pan bar (3) Encoder connector (4) Balance knob (5) Centre lock (6) Illuminated level bubble (7) Ambient light level sensor (8) Digital display (9) Switch for illuminated level bubble, drag knob scales and digital display (10) Tilt drag adjustment knob (11) Slide lock release (12) Camera mounting screws (13) Slide plate 5
(20) (19) (14) (18) (15) (17) (16) Vision 250E (Right-Hand Side) (14) Tilt brake knob (15) Pan brake knob (16) Battery cover (17) Four hole/Quickfix mounting plate (18) Pan encoder (19) Telescopic pan drag adjustment knob (20) Tilt encoder 6
Introduction The Vision 250E combines a manually-operated EFP-type pan and tilt head with electronic encoders to provide precise real-time digital electronic positioning. Pan bar mounting points are located at the rear of the head, on either side of the camera mounting platform. A telescopic pan bar (2) is supplied and is attached using a pan bar clamp, with angular adjustment available on the mount serrations. A second pan bar may be fitted.
Perfect balance Perfect balance is achieved in the Vision range of lightweight pan & tilt heads by means of an innovative and patented infinitely-variable spring mechanism. This allows the heads to tilt through the full range of ±90º in perfect balance. The balancing mechanism is both compact and lightweight - vital in applications where head size and weight are key benefits in flexibility, handling and portability.
Positioning encoders The Vision 250E is fitted with rotary optical incremental encoders for pan (18) and tilt (20), accessed via a connector (3) on the tilt encoder. Input power to the encoders is +5 V dc at 200mA maximum. The quadrature square wave outputs are designed for connection to TTL-compatible circuitry and provide high-resolution real-time digital output of up to 696,667 counts for 360° of pan and 533,333 counts for 360° of tilt.
Operation Installing the head The Vision 250E head is supplied with a flat base and is designed for installation on a compatible Vinten tripod or pedestal, using either the four mounting bolts and washers provided or by using a `Quickfix' adaptor. Adaptors are available which enable the heads to be installed on tripods or pedestals fitted with other mountings. These are listed under ‘Optional Accessories’.
1 2 (1) 3 4 Balancing the head 11
1. Release the centre lock (5) and the tilt brake (14). Turn the balance knob (4) counterclockwise until the head falls away from horizontal under the weight of the camera. 2. Release the slide plate clamp (1) and slide the camera backwards or forward until it balances horizontally. Apply the slide plate clamp (1). 3. Turn the balance knob (4) clockwise until the camera does not fall away when the head is tilted and released.
on the right -hand side. The pan drag knob is telescopic and should be pulled out to facilitate adjustment and pushed in when adjustment is complete. To increase drag, turn the knob clockwise, towards a higher graduation. To decrease drag, turn the knob anti-clockwise, towards a lower graduation. The whip-pan facility is unaffected by the pan drag setting.
Servicing Routine maintenance Replace the balance mechanism digital display battery yearly. During use, check the following: Check the effectiveness of the pan and tilt brakes. Reset as necessary. Check the operation of the balance mechanism digital display and the illumination of the level bubble and drag knobs. Replace battery if necessary. No further routine maintenance is required. Cleaning During indoor use, the only cleaning required should be a regular wipe over with a lint-free cloth.
Battery replacement The battery powers the balance mechanism digital display and illuminates the level bubble and the drag knob scales. All are operated simultaneously by pressing the switch (9) and remain active for approximately 15 seconds. The battery should be replaced yearly or whenever the illumination is considered inadequate. NOTE: The illumination level of the digital display and the level bubble and the drag knob scales varies with the intensity of the ambient light.
Balance mechanism digital display calibration The digital display (8) indicates setting of the balance mechanism on a scale of 00 (minimum setting) to HI (maximum setting). In the unlikely event of this system requiring calibration, proceed as follows: Level the platform and apply centre lock (5). Turn the balance knob (4) fully clockwise to its maximum stop. NOTE: If more than 15 seconds is allowed to elapse between steps, the system will shut down and revert to its previous settings.
Tables Table 1 - Encoder Pin Designations Encoder Connector Pan Function Wire Colour Pan 1 GND Black 1 Pan 3 +5Vdc Brown 2 Pan 7 I- Red 3 Pan 8 I+ Orange 4 Pan 9 B- Yellow 5 Pan 10 B+ Green 6 Pan 11 A- Blue 7 A+ Violet Pan 12 Not used Tilt Output Connector Pin No.
Parts list The following lists include main assemblies, user-replaceable spare parts and optional accessories. For further information regarding repair or spare parts, please contact Vinten Broadcast Ltd or your local distributor. For information on-line, visit our website at www.vinten.
