6 power supply, Power supply, 6power supply – ARRI ALEXA 35 Body & PL Mount Set (LBUS) User Manual

Page 19

Power Supply

ADVICE

Always keep the PWR connector accessible so that the cable can be unplugged quickly in case

of emergency.

Unplug the power cable by gripping the power plug, not the cable.
Do not use power cables longer than 4m.
Operate the system using only the type of power source indicated in the manual.
Do not supply power outside the specified voltage range.

Power Inputs

The camera accepts input voltages from 20.5 to 33.6 V DC.
The BAT input is located on the rear interface (1) and is used to

power the camera from 24 V onboard batteries using a battery

adapter.
The LEMO 8-pin PWR input (3) allows to power the camera

from block batteries or DC power supplies using cables KC50-S

(K2.75007.0) or KC50-SP-S (K2.0001275).
Both inputs are equipped with an LED (2, 4) that indicates the

status of the input.

Switching On and Off

The

POWER

button (5) is located at the rear left of the camera. The

POWER

but-

ton's background light is illuminated when the supplied power is in the valid range.

While the camera is booting up, the boot status LED (6) is flashing blue. As soon as

the camera has finished the boot process, the boot status LED turns to solid blue.

► To switch on the camera, press the

POWER

button.

► To switch off the camera, press and hold the

POWER

button until the camera has

switched off.

Status Information

The status of the power inputs is displayed on the HOME screen of the MVF-2 and the side display as

well as in the Status Info.

When power is supplied through both the PWR and BAT input, a current

symbol on the HOME screen indicates which input is being used. The pre-

ferred input to be used can be set in the camera menu.

The BAT entry can display two values when two B-mount batteries are used together (e.g. a hot swap

unit and a main unit). The first value refers to the battery that sits directly on the battery adapter (usu-

ally the hot swap unit), the second value refers to the stacked battery. The camera will always draw

power from the stacked battery first.