ABB AC 800F, Mounting And Installation Instructions Manual

Page: 185 / 379

5 AC 800F Functional Description
5-17
5.2.2 Technical data of the CPU board PM 803F
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.: 6 W
- max.: 10 W
Voltage monitoring
If one of the three internal supply voltages is fallen
below 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%. A voltage of 2.5 V
±
5 % is generated on the CPU board.
Reset threshold for
5 V: 4.65 V
Reset threshold for
3.3 V: 3.08 V
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
Processing time for 1000 commands
(preliminary) binary AWL
fixed point arithmetic
floating point arithmetic
< 1.0 ms
< 2.0 ms
< 1.5 ms
RAM
32-bit words, data will be preserved through buffer
battery with supply via slot E1, E2 and/or F1 ... F4.
16 MB synchronous dynamic
RAM,
32-bit words
Data retention when battery-powered
Lithium buffer battery, 3.6 V, > 950 mAh, plugged in
slot E1 and/or E2, and/or in F1 ...F4. The data
retention time can be increased by using several
buffer batteries. > 20 days