2022من مجموعة على Facebook: Steadicam operators group
Alexa 35 جهاز إنذار تقلب الطاقة الكهربائية على Tiffen M2 sled: 24V cable vs. 12V cable misidentification, and power budget validation.
موضع خلافاختلف المشاركون ولم يصلوا إلى خلاصة. اقرأ النتائج على أنها مواقف، لا إجابة.
ما توصّل إليه النقاش
- The most common cause is a 12V cable routed to the camera instead of a 24V cable; many Alexa Mini and Amira cables supply 12V via hot-swap connectors, while 24V appears on a different pin of the sled connector.
- The three-pin output on the M2 carries ground on pin 1, 12V on pin 2, and 24V on pin 3.
- Secondary causes include incorrect battery type or undervolage threshold configured in the camera menu, and undersized cable gauge, which some cable manufacturers overlook.
- Adding more batteries in parallel increases runtime but does not raise voltage; the Alexa 35 draws approximately 140 W and requires adequate conductor cross-section to sustain 24V delivery under load.
يعتمد على
- Whether the issue stems from incorrect cable routing, camera settings, or insufficient power capacity depends on systematic testing with a known 24V cable and a multimeter check at the camera input.
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