bolid Signal-10, User Manual

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Signal-10 Operation Principles
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The relays controlled by the programs #1…#8, #11 (ASPT) and #33 (ASPT-1) will be activated again
after recovering the auxiliary alarm loop, while the relays controlled by the programs #34 (ASPT-A) и
#35 (ASPT-A1) will be kept off.
Programmable Auxiliary alarm loops of the Type 12 have 5 available statuses which are defined by
user programmable loop resistance threshold values.
If the equipment being in use implies several various conditions and has several output contacts, all
these conditions can be monitored be means of a single alarm loop of the Type 12. To do this, all out-
put contacts of the monitored equipment have to be included into the alarm loop along with different
additional of shunt resistors. As two special cases, it can consider monitoring circuits for short and open
failures.
Figure 1 shows the conditional distribution of available loop statuses and location of the threshold re-
sistances which define these statuses for the particular equipment.
Rloop 50 K 0
status 1 status 2 status 3 status 4 status 5
4 to 5 Threshold
3 to 4 Threshold
2 to 3 Threshold
1 to 2 Threshold
Figure 1. Thresholds of Transition between Different Statuses of Programmable Auxiliary Loops
Threshold values of resistance which define the transition bounds and meaning content of the particular
statuses are user programmable.
Signal-10 sound and light indication as well as relay control in case of an alarm loop of the Type 12 are
defined by the particular statuses that can be reached by this loop. The statuses are switched only after
changing of the loop resistance and are unrelated to other factors or network controller commands. The
integration time for changing statuses of an alarm loop of the Type 12 is 300 ms. If the alarm loop of the
Type 12 reaches such the status as Armed, Disarmed, Auxiliary Loop Restored or any other ‘Restored’
the integration time for the status (the time of restoring) is equal to programmed Arming Delay for the
loop.
Table 7 shows status codes and statuses which can be programmed for an alarm loop of the Type 12 in
the Signal-10 device.