Hired-Hand Emergency Back-Up and Alarms: Secondary Sensing System Expansion - Manual (Page 11)

Manual No. 4801-3001 Rev 7-08 Secondary Sensing System Expansion 11 of 46
5.2 Alarm System Indicators
The Alarm Status LED Display indicates if all Conditions are OK (Green LED) or the specific reason for
the alarm condition (Red LED’s).
If a red Alarm LED is blinking, the problem may be one of two causes:
a. If Conditions OK LED is Green, an Alarm condition exists although the 30 second confirmation timer
has not expired.
b. If Conditions OK LED is OFF, the alarm condition has been acknowledged (Acknowledge LED will
also be ON).
Except for the Conditions OK (status) indicator, all of the remaining LED Indicators have red LED’s for
displaying alarm status information.
5.2.1 Conditions OK Indicator
At the top of the Alarm Status Indicators section is an LED indicator labeled “Conditions OK”. This
indicator shows the current alarm status of the S
3 . If the Conditions OK LED is green, there are no alarms
being generated. If the LED indicator is OFF, the S
3
is in the alarm mode. When the LED is OFF, refer
to the other Alarm Status Indicators for specific alarm condition information.
5.2.2 Power
When this RED LED turns ON, the S
3
control has lost AC power or the F1 fuse is blown. Refer to Section
10.4 for fuse replacement information.
5.2.3 Low Battery
When the Low Battery RED LED indicator turns ON during loss of AC power, the battery level is
partially depleted and currently operating at a low energy level. If the battery voltage has dropped below
about 10.6 volts, the red LED Indicator will light. If the battery indicates low, the operator should set all
controls so that the siren will not activate, and leave the machine plugged in for about four hours. This
should recharge the battery. If this doesn’t work the battery is probably bad. In this case, contact your
Hired-Hand dealer for a replacement. Note that it is common for the Low Battery indicator to be lit if the
alarm has sounded for a long time.
5.2.4 AUX 1 and AUX 2
The designated alarm condition exists when the AUX 1 and/or AUX 2 RED LED turns ON. The Auxiliary
inputs can be connected to a variety of external control sources such as curtain drops, control alarm
outputs, pressure switch, or any device with a NC (Normally Closed) dry contact connection. The white
area to the right of the LED indicator can be used to write-in the alarm title/description by using a
Write-In Areas
(for Auxiliary Alarms)
LED Indicators
(for Control System Alarms)
LED Indicators
(for Status and Alarms)
Alarm Indicators