These alarms will be latched/not latched by the annunciator
according to the above table. They can be acknowledged at the
annunciator using the ‘Reset' switch— the active lamps will then
stop flashing and remain in the ON state until the alarm signal
clears from the generator control panel. The "Reset" switch will
also turn off and re-arm the horn.
NOTE:
10. These lights can only be fully reset when the alarm state
is no longer active and “Reset” has been pressed at both
the generator control panel and the remote annunciator.
Alternatively, at any time the horn can be turned OFF and
re-armed with the "Re-Arm Horn" switch.
11. When this annunciator is used in a Modular Power System
(MPS), a warning on any one of the generators will cause
the above lights to light, and alarm to sound (if the warning
is audible).
SPARE INDICATOR
The spare indicator light/LED can be activated from the PM-GC or
PM-SC by using the Integrated Logic Controller (ILC) feature in the
G-panel or H-panel. Also see the section in this manual describing
the operation and set-up of the spare keypad switch.
Annunciator Light
Light Color
Audible Alarm
System Ready
Green
Yes
Communication OK
Green
Yes
Line Power
Green
No
Spare
Green
No
SYSTEM STATUS INDICATORS
These lights/LEDs are for Status indication only— the normal
condition is ON.
SYSTEM READY
The System Ready is defined as ALL “ in service” generators are
ready to start, run, and supply power. Any generators manually
declared as “ out of service” will not affect this LED.
Upon a loss of System Ready, the annunciator will respond as
follows:
1. The System Ready LED will begin to flash.
2. The alarm will sound.
The “ Re-arm Horn” switch can be used to turn off and re-arm
the horn, or the alarm can be fully acknowledged using the reset
switch at which time the System Ready LED will turn off and
remain off until the System Ready status is returned.
COMMUNICATION OK
This LED will be ON as long as there is proper communication
between the Remote Annunciator Panel and the Generator control
system. It typically requires less than a minute for the Annunciator
to determine the correct baud rate and connect to the RS485
bus.
When communication failure occurs, the Annunciator will flash the
communication LED, and sound the horn. The rate of flashing will
be indicative of the cause of error.
1. No reply from the generator control system, Frequency = one
second ON/one second OFF
2. Consecutive data errors, Frequency = 0.5 second ON/two
seconds OFF.
This alarm condition can be acknowledged at the Annunciator
using the “ reset” switch - the horn will be turned off and re-armed,
and the communication OK light will continue to flash until proper
communication returns.
GREEN STATUS LED (INTERNAL TO UNIT)
If the green LED is flashing at a one second on and one sec-
•
ond off rate, the unit is operational and is configured from the
Windows Graphical User Interface.
If the green LED is flashing at a one second off and five seconds
•
on rate, the unit is operational and is configured from the DIP
switches.
If the green LED is flashing at a half second on and five seconds
•
off rate, the unit is operational but there are no RS485 com-
munications.
If the unit is powered for 30 seconds and the Green Status LED
•
does not turn on at all during this time, the circuit board is not
functional.
SYSTEM KEYPAD SWITCHES
TEST SWITCH
While the test switch is pressed, all lights/LEDs will light and the
horn will sound. When released the lights/LEDs will return to their
original status. During this test, communication to the generator
control system will be suspended.
RE-ARM HORN SWITCH
The re-arm horn switch will silence the alarm horn and re-arm it
for new alarm occurrences.
RESET SWITCH
The reset switch is used to acknowledge any active alarms. It will
re-set any flashing light/LED’s to a ON (steady) condition (or OFF
for normally on lights). If the alarm no longer exists and it has also
been latched OFF at the generator control panel (pre-alarm indica-
tors only) the active light will go OFF. It will also silence the horn
and re-arm it for new occurrences.
5
Remote Annunciator
