Installation Instructions
C3620, C3640
15
Cable-cross-section for
connection of power supply
Warning
PC_ON and power status
Warning
UPS output
UPS output function
Connecting Power Supply
The external wiring consists of the connection of the power supply, the
battery pack (optional) and the connection of customized components for
shutting down the PC.
Cable Cross Sections
For the connection of the power supply, wiring with a cable-cross-section of
1.5 mm
2
must be used.
With bigger distances between voltage source and PC, you take the
voltage drop as a function of the cable-cross-section as well as voltage
fluctuations of your distribution voltage into account, so that is secured that
the voltage doesn't fall under 22 V at the power supply.
The power supply must be protected with maximum 16 A.
Configuration for shutting down the PC
The connections for shutting down the Industrial PCs are established via
the
PC_ON
input and the
Power Status
output.
PC_ON and Power Status functions
•
If the
PC_ON
input is connected to 24 V via a switch, the PC shuts
down according to the rules. The PC_ON signal is inverted, i.e. the
PC shuts down if the 24 V connection is live.
•
If the
PC_ON
input is
NOT
connected by the user, the PC can be
booted in the familiar way by connecting the supply voltage and
shut down via the battery by switching off the supply voltage.
This procedure significantly reduces the service life of the
rechargeable battery and should therefore not be used.
•
Once the PC has shut down, the
Power Status
output is switched
from 24 V to 0 V. Via this output a signal lamp can be connected or
a contactor for de-energizing the whole system. The maximum
load for the
Power Status
output is 0.5 A and a suitable fuse
should be provided.
UPS output
In order to maintain a screen display for the PC in the event of a power
failure, the power supply unit is equipped with a
UPS output
for connecting
a Control Panel. The maximum load for the output is 1.4 A (max. 2.5 A
from 2016 and later).
UPS output function
•
The 24 V DC connection at the UPS output is live even after a
power failure. The maximum load is 1.4 A (max. 2.5 A from 2016
and later).
•
Once the PC has been de-energized via the UPS software, the
UPS output
is switched to 0 V. Any connected panel is thus
switched off, and total discharge of the rechargeable battery is
prevented.
Содержание C3620
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