Bosch CL400 - Tasks and Functions

Flexible Automation
Power supply modules
3-5
1070 072 143-101
3.2 Tasks and functions
The power supply module takes on the following functions:
D Supply of the internal supply voltages +5V, +12V and 12V (insu
lated).
D Monitoring the input voltage for overvoltage and undervoltage.
D Monitoring the +5V and +12V for overvoltage and undervoltage.
D Monitoring the temperature of the power supply module at 60 _C
+10%.
If one of the 3 monitor functions mentioned above gives a response,
the power supply module will be switched off and all outputs will be
set to 0.
D If power failure occurs, the buffered memories of the control are sup
plied centrally from the power supply module via a buffer battery.
D Monitoring the buffer battery.
Buffer battery
The buffer battery serves the central fuse of the remanent areas for markers,
times, counters, data field and data buffer. The buffer battery takes over the
supply of the internal RAM memory of the ZS400 when the supply voltage
cuts out or the power supply module is switched off.
In connection with the Memorycard, the CL400 makes operation without
buffer battery possible.
module
max. Power input in MA at
25 _C 55 _C
NT1, NT2, NT3, NT24 60 60
ZS400 32 220
ZAT1 10 75
ZAT2 10 75
R500 10 75
R500P 15 110
DB500
D Program memory cards RAM
32 and 128 k words
D Program memory cards RAM
64 k words
10
10
20
75
75
150
Fig. 3-4 Buffer battery, power input of the modules