ABB AC 800F

5 AC 800F Functional Description
5-15
5.2.1 Technical data of the CPU board PM 802F
Weight
CPU board installed in the housing, without power
supply, modules and dummy panels
1600 g
Power consumption
depending on the CPU load and cycle times
-typ.:6W
- max.: 7.8 W
Voltage monitoring
If one of the two internal supply voltages is
underscored by the specified threshold, the CPU
board will be reset. The power supply ensures
supply voltages of 5.0 V ± 3% and 3.3 V ± 3%.
Reset threshold for
5V: 4.65V
Reset threshold for
3.3V: 3.08V
Power fail
Failures of the primary power supply ≤ 20 ms will be
bridged by the power supply module without
generating a power fail signal. After generation of
the power fail signal the power supply module will
ensure operation for T
PF
to allow for proper shutdown
of all processes.
T
PF
≥ 15 ms
CPU
Intel 80960HD 25/75, super scalar RISC processor,
32-bit.
75 MHz
CPU clock, 150 MIPS
RAM
32-bit words, data will be preserved through buffer
battery with supply via slot E1 and/or E2
4 MB static RAM
Data retention when battery-powered
Lithium buffer battery, 3.6 V, > 700 mAh, plugged in
slot E1 and/or E2. The data retention time can be
increased by using several buffer batteries.
> 1.5 years