Fault Acknowledge Key - Simplex 4100 Operator's Manual

SIMPLEX 4100 EWIS
OPERATOR MANUAL
4.4

FAULT ACKNOWLEDGE KEY

The <FAULT ACK> key is used to scroll through the various displays on the
alphanumeric display.
<FAULT ACK> key is located directly under the fault LED. Pressing the <FAULT
ACK> key will cause the LED to change from flashing to on steady and silence the
tone-alert. When the <FAULT ACK> key is pressed, it will:
A. Acknowledge the displayed point or acknowledge all points on the list (Global
Acknowledge).
B. Scroll the points chronologically after all points have been acknowledged.
When Global Acknowledge is used on the 4100 system, a single key press will
acknowledge all fault changes in the system. If status change information is
required, the user may review this data (after a delay) by pressing the <ACK>
key and reading the total number of fault changes on the alphanumeric display.
If a fault condition has been acknowledged with the <ACK> key and further
unacknowledged fault conditions remain in the system, the tone-alert continues
to sound and the next status change is shown on the alphanumeric display.
NOTE: Normally, points may not require acknowledgment and do not latch. If the
system does not clear, read the display, then check for devices still in fault
(manual call points, strobe etc.).
Document No.: 4100-M010A
It also controls the Fault LEDs and the tone-alert.
May 1999
Page 17
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Issue 3.1