BECKHOFF C1230S - Manual (Page 7)

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ISA Bus interface card C1230S 7
C1230S
The C2000BAT UPS Control Board
Uninterruptible power
supply An industry PC with a 24 V power supply can optionally be fitted with an
uninterruptible power supply, which maintains correct operation of the
device for about 15 minutes by means of a NiCad battery after failure of the
main power supply. The control is performed by the C2000BAT UPS
control board.
Not all connections are
used in the application with
the C1230S.
1
1
1
no
t
us
ed
not us
ed
C1230S
BECKHOFF C2000BAT
Battery/Pwr. sup.
Fuse
1A
LC-
display
Switch for
LCD illumination
Mai
n
s
powe
r
s
upp
ly
bo
ar
d
Battery reverse connection
protection The UPS control board is fitted with a simple form of protection against
reverse battery connection. If the battery is accidentally connected with the
wrong polarity, high current flows for a short period, and this blows the fuse
(1A) on the C2000BAT board. The location of the fuse on the board can be
seen in the figure.
Switch for the LCD
background illumination The UPS control board allows the LCD background illumination to be
switched on and off by means of a switch on the side of the housing, or by
software through the PIO chips on the C1230S. Switching the LCD
background illumination off can save current under battery operation. If the
software has switched the background illumination off when under battery
power, it can be switched on again for operation using the switch.