VC40XX.pdf – Hardware Documentation VC40XX Smart Cameras
16
4.3 Power Supply and IO Interface
This connector includes the camera Power Supply and digital PLC IOs.
4.3.1 Pin assignments Power Supply and IO Interface
Pin
Signal
rear view camera socket:
1 24V
PLC
2
24V IN Cam
3
GND IN com.
4 INP
1
5 OUT
3
6 OUT
2
7 OUT
1
8 OUT
0
9 24V
PLC
10 INP
3
11 INP
2
12 INP
0
4.3.2
Electrical specifications Power Supply and IO Interface
Power must be connected to the 12pin I/O connector. Note, that the voltage is 24V.
Camera power is regulated and galvanically separated inside the camera, so only an unregulated
power source of 24 V +/- 20% is required. The camera is, however, very sensitive to power supply
interruption. Please make sure, that the voltage never exceeds the limits of +/- 20% even for a short
period of time. In case of unstable power supply it is recommended to backup the power supply by a
capacitor or a battery large enough to prevent power interruptions.
The camera has several internal circuits to detect and protocol power failures. Used correctly these
internal flags can be used to perform a correct shutdown and close all open buffers (see below). This
feature is for emergency only and is not designed to handle very frequent interruptions.
There are different options for the connection of the power supply:
•
Single voltage, with or without PLC signals, no shutdown
•
Dual voltage, with or without PLC signals, shutdown
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1996-2005 Vision Components GmbH Ettlingen, Germany
