Power Supply
(X-Series)

The X30/X36 projection units require 120 W of power and must be supplied via a 24 V 5 A DC supply on the “External” GPIO port.

Camera Power Supply

The projection unit internally generates supply voltages for the left and right camera which are available on the “Camera 1” and “Camera 2” GPIO port. Projectors with 2.5 Gbit enabled switch generate 24 V DC voltage for the connected cameras, older models with 1 Gbit switch generate a 12 V supply voltage for the cameras.

Average vs. Peak Power Consumption

Due to limited space the projection unit cannot buffer energy for an entire flash in internal capacitors. Therefore, the peak power consumption of 120 W is reached during flashing of the projection LED. The absolute maximum flash time is hardware limited to 160 ms. The hardware limit for the LED duty cycle is 10 %.

The typical idle power consumption of the projection unit is approximately 2.5 W. The overall idle power consumption of the entire stereo system further depends on the attached cameras.

Minimum Input Voltage

Depending on the supply cable length and diameter the input voltage at the projection unit will drop below 24 V during flashing of the LED, i.e. during the peak power consumption phase.

The minimum voltage for guaranteed stable operation of projection unit and attached cameras is 16 V. The input voltage at the “External” port must not drop below this voltage at all times. If the input voltage at the “External” port drops below 24 V the unit maintains its power consumption of 120 W during flashing. Thus, the power supply must be able to provide more input current (> 5 A) to compensate the voltage drop in such cases.

Note

  • When powering the camera over longer distances you need to make sure to use wires of sufficient diameter to provide enough input voltage for stable operation of the projection unit and the attached cameras.

  • The projection unit continuously monitors the input voltage. Please see the MinimumVoltage node for more information. NxView will also query this node and display warnings for critical voltage drops.

  • The supply voltage must not exceed 28 V.