General Monitors TA402A, Instruction Manual

Page: 28 / 51

5.3 Inhibit Mode Description
Whenever the Inhibit Mode is entered (see
section 5.2), the A1 and A2 rear terminal
alarm outputs are inhibited. The front panel
A1 and A2 LEDs will still function
normally, in cases where sufficient UV/IR
radiation is present. If the password option
is disabled, or after the correct password has
been entered, the display will indicate
In
for
five seconds (figure 15 on page 19).
Pressing the Mode/Select switch while
In
is
displayed, will cause the unit to enter the
Inhibit mode by inhibiting the alarm outputs.
After the Model TA402A has entered the
Inhibit mode, pressing the Mode/Select
switch causes the unit to return to normal
operation. If it is desired to enter the Setup
Mode, do not press the Mode/Select switch
for the five seconds that
In
is displayed.
NOTE: Any latched alarms must be rest
before exiting the Inhibit Mode.
There is a user selectable option that will
place the unit in Fault every time the Inhibit
Mode is entered. If the operator does not
select this option the Fault circuits will
function normally during the Inhibit Mode
(i.e. they will not be inhibited).
While the unit is in the Inhibit mode, the
display will indicate
In
for 5 seconds, then
be blank for 5 seconds. This sequence will
repeat for as long as the unit is in the Inhibit
mode.
The Inhibit Mode is provided so that the
operation of Model TA402A can be verified
without tripping external devices that are
connected to the A1 and A2 outputs. This
type of verification usually occurs during
“Initial Start-Up” and/or “Commissioning”.
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User Interfaces
General Monitors