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General status collector
System backplane signal inputs RUN, LIVE, BAT, PFail
Four general-purpose inputs 24 V
One FANFAIL input
One external system clock SYNC input
Two relay outputs controlled by RUN signal (Processor Modules A and B).
TC520 is positioned in a controller subrack to interface with the backplane bus.
The module collects status information from around the system. Inputs from the backplane
bus of the Advant Controller as well as the module front connector are treated.
The information is then distributed on a transmit-only serial link.
This serial link is available on the backplane to all main CPUs for listening only.
To achieve external synchronization of the Advant Controller system calendar clock,
the "minute pulse" is connected to TC520. The signal is separately distributed
on the bus backplane to the processor module(s).
The module also makes a RUN-signal controlled relay contact externally available.
As long as the RUN-signal is active, the relay contact is closed.
Inputs, except the SYNC input, are filtered digitally by software.
TC520 is totally autonomous, that is, it cannot be affected by an outside user. The status
of all inputs is reported, regardless of whether the inputs are connected or not.
The application of the inputs A1, A2, B1, B2 is configured in the controller data base.
Error state with respect to electrical signal level is defined by the application.
See the controller configuration/installation chapters.
For the input FN (FANFAIL), the logic high level 24 V is applied as the error state.
LED RUN (green) on module front indicates module running normally.
A-46
ABB
TC
520
RUN
A1
A2
AG
B1
B2
BG
RA
RA
RB
RB
FN
S
SG
3BSE 002 415R701 Rev A
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