NT200 Power Supply Module
4–1
1070 072 145-102 (01.07) GB
4 NT200 Power Supply Module
4.1 Features and Functions
The NT200 power supply module performs the following functions:
D Provision of internal operating voltages:
D 5 V for the central processing unit
D 3.4 V memory backup battery voltage
D 7.5 V for peripheral modules
D 12 V ISO for 20 mA interface
D Undervoltage monitoring of 24 V power supply
D Bridging power intermittents in 24 V power supply
D Monitoring internal power supply
D In the event of a failure of the 24 V power supply, the buffered controller
memory is powered by a backup battery.
D Monitoring the backup battery
. The power supply module in the basic unit does not provide 24 V power
for peripheral modules, signal encoders and actuators. These require
a separate 24 V power supply. Refer to information in section 17.1.
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