2011منتدى Follow Focus
متطلبات الطاقة لتشغيل محرك تركيز Preston وBartech متحكماً بالآيريس في وقت واحد من موصل كهربائي واحد من طراز Arri
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ما توصّل إليه النقاش
- A single 3-pin RS power connector on an Arri Alexa can supply sufficient current to operate both a Preston focus motor and a Bartech iris controller simultaneously, as the combined draw remains within the connector's 2.2A maximum rating
- The Bartech BDR with M26VE iris control module draws approximately 500mA or less during normal iris operation
- A Preston DM2 focus motor with Bartech BDR draws between 163-625mA under normal operation at 12V, with peak stall current around 1.3A
- At 24V, the same Preston DM2 and Bartech combination draws between 230-619mA under normal operation, with peak stall current around 1.9A
يعتمد على
- Measurements were conducted specifically with a Preston DM2 motor; other Preston motor models may have different power requirements
- The data represents measurements taken in a controlled lab environment and may not account for all real-world usage scenarios
- Peak stall current of approximately 1.9A at 24V approaches the connector limit and leaves minimal headroom for other accessories