VC20XX Operating Manual
31
8 Connecting the Camera
•
Connecting the camera power
•
Single voltage, with or without PLC signals, no shutdown
•
Dual voltage, with or without PLC signals, shutdown
•
Connecting the RS232 Interface (non Ethernet Versions)
•
Connecting a compatible PC with a 9-pin D sub plug
•
Connecting a compatible PC with a 25-pin D sub plug
•
Connecting the Ethernet Cable (Ethernet Versions)
•
Connecting the VC keypad
•
Connecting the external trigger
Also consult the “VC20XX Installation Manual” available on the VC Website under:
“Support -> Customer Download Area -> Getting Started VC20XX Smart Cameras …”
8.1 Connecting the camera power
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 trouble 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 the
camera is even able 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
For details refer to the following sections.
8.1.1 Single voltage, with or without PLC signals, no shutdown:
Signal
Pin No.
color
connect to
24V IN Cam
2
red/blue
24V power supply
24V PLC
1
red
24V power supply
24V PLC
9
blue/pink
24V power supply
GND IN com.
3
black
GND power supply
Pins 1 and 9 are are internally connected. Since one connector pin shows a maximum current
rating of 500mA, connect both pins if drawing higher currents from the PLC outputs!
This cabling option does not provide shutdown. Programmer must implement their own
procedures for fail-safe operation.
!
©
1996-2007 Vision Components GmbH Ettlingen, Germany
VC20XX_HW.pdf
