Eaton DF6200, Application Manual

Page: 21 / 94

21
Amended: April 22
EMEA Fire Technical Support: DF6000/CF3000 Applications Guide
Fig 7a
T1 & T2
Also contained within the above menu are T1 & T2 timers, this feature enables the user to
acknowledge an alarm and investigate the cause before full alarm and the building is evacuated. (see
Fig 8)
T1 time delay is between 10 secs and 3 min. In 10 second increments. (UL MODE = 15 seconds)
T2 time delay is between 1 and 10 mins. In 1 minute increments. (UL MODE = 3 minutes)
T1 / T2 function can only be activated via the panel in this sub menu, however all loop output devices
are included by default, set in Site Installer software. (see below Fig 11).
If T1 is set with a T1 delay, this will delay the operation of ALL outputs or FRE only (selected in this
menu) until T1 time expires.
The sounder programming will then revert to the Site Installer program minus any programmed
delays.
[Note 1: If Double Knock is selected and set as the only response, on expiry of T1, the panel will wait
for the second activation as programmed. Similarly setting Dependency type C is set and the
detection is in the allocation table, then the panel will wait for the coincidence (second) activation.
However if only a delay is set then the panel will ignore this delay and operate immediately]
[Note 2: It is not recommended to use Double Knock or Coincidence (Dependency Type C) at the
same time as T1/T2. Both of these features allow the user to manage the alarm condition and should
be used with care]
When T2 is set and silence alarms [acknowledge] is operated before T1 expires, the delay set on T2
will start.
When this time expires (T2) the outputs will revert to the site installer program
including any
programmed delays. Both must be set if either is required.
[Note: If Double Knock is selected and set as the only response, T1 is acknowledged and on expiry of
T2, the panel will wait for the second activation as programmed. If only a delay is set, then the panel
will then process this delay as programmed and operate on its expiry (in addition to the T1/T2 delays)]
Both of these delays can be overridden by the operation of any second device (a double knock which
could indicate fire spread), Call point or the input of an I/O. (this is also selectable within the T1/T2
menu).
[NOTE: In UL MODE, If a second alarm occurs during either time delays, the alarm will proceed
immediately causing activation of the appropriate output zones.]
If Day/Night mode is selected, the first fire during night mode overrides T1 such that the outputs will
revert to site installer program minus any programmed delays.
If a Non-Fire Input is used to set some cause and effect, then this will also override T1/T2.