Generac
®
Power Systems, Inc.
5
20-light Remote Annunciator
GENERATOR POWER
This light indicates different things depending on the
type of system it is attached to.
• For a PowerManager System Controller (PM-SC with
external transfer switch(es)), generator power is
defined as any one or more generators in the system
running and connected to the generator bus.
• For a PowerManager Integrated Controller (PM-IC
with integrated transfer switch), it represents the sta-
tus of the generator’s side auxiliary contact of the
internal transfer switch. This shows whether the load
is powered by the generator.
• For a non-paralleling engine controller (PM-GC
WITHOUT internal transfer switch), it represents the
status of the input 4 (TB2-5) to the generator DCP.
This should be connected to the generator side auxil-
iary contact of the external transfer switch. A closure
to ground will cause the light to illuminate. This
shows whether the load is powered by the generator.
• For an engine controller that is part of an MPS system
(PM-PC), generator power represents the state of the
internal contactor that the generator is connected to.
• For a Utility paralleling engine controller (PM-GCF),
generator power represents the status of the genera-
tor side auxiliary contact of the internal transfer
switch. This shows whether the load is powered by
the generator.
LINE POWER
This light indicates different things depending on the
type of system it is attached to.
• For a PowerManager System Controller (PM-SC with
external transfer switch(es)), line power represents
the auxiliary input C (TB6-4).
• For a PowerManager Integrated Controller (PM-IC
with integrated transfer switch), it represents the sta-
tus of the utility side auxiliary contact of the internal
transfer switch. This shows whether the load is pow-
ered by the utility.
• For a non-paralleling engine controller (PM-GC
WITHOUT internal transfer switch), it represents the
status of the input 3 (TB2-4) to the generator DCP.
This should be connected to the utility side auxiliary
contact of the external transfer switch. A closure to
ground will cause the light to turn ON. This shows
whether the load is power by the utility.
• For an engine controller that is part of an MPS system
(PM-PC), line power is not used.
• For a Utility paralleling engine controller (PM-GCF), it
represents the status of the utility side auxiliary con-
tact of the internal transfer switch. This shows
whether the load is powered by the utility.
BATTERY CHARGER AC FAILURE
This light annunciates upon loss of 120 VAC power sup-
ply to the battery charger. This requires an AC relay
with normally closed contacts connected in the circuit
feeding power to the battery charger.
NOTE:
To prevent false alarms caused by brief power out-
ages or load switching, a time delay AC relay
(approximately 30 second delay) is suggested.
SPARE
The spare indicator can be activated from the DCP by
using the programmable logic controller (PLC) feature.
SYSTEM STATUS INDICATORS
These lamps are for Status indication only—the normal
condition is ON.
SYSTEM READY
The System Ready is defined as ALL “in service” gener-
ators 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 acknowl-
edged using the reset switch at which time the System
Ready LED will turn off and remain off until the System
Ready status is returned.
Annunciator Light
Light
Audible
Color
Alarm
System Ready
Green
Yes
Communication OK
Green
Yes
Line Power
Green
No
Spare
Green
No
