Trane TRACER SUMMIT BAS-APG001-EN Manuel D’Utilisation

Page de 156
End process verification
BAS-APG001-EN
109
End process verification
End process verification confirms that a device responded to an operation 
command. End process verification programming consists of: 
Programming the system to test binary input points for responses to 
commands sent to output points
Setting a counter to provide a time delay that allows the system time 
to respond before setting a fail flag
Setting a fail flag if the counter times out
Programming the system to send a fail flag to Tracer MP581s 
controlling the FSCS, which results in the FSCS turning on a fail 
light
Figure 59 shows an example of TGP used to determine a status of the 
outdoor air, return air, and exhaust air dampers. Each damper position 
status is compared to the relevant damper position request and a normal/
fail state flag is derived. This segment will trigger an alarm event and 
send a fail flag to the Tracer MP581 that interfaces with the FSCS panel. 
A mechanical system reaction to the failure is not necessary. 
Based on Table 28 on page 101, the self-test needs to be overridden if 
either a smoke alarm is triggered or a manual override takes place. 
Figure 59.  Sample TGP showing fail test technique