Product Manual

Operation
Owner’s Manual for Spark-Ignited Stationary Generators 21
Battery Charger
NOTE: Battery charger is integrated into control panel
module.
The battery charger verifies:
• Output is continually optimized to promote maxi-
mum battery life.
• Charging levels are safe.
NOTE: A warning message is displayed on the LCD
when the battery requires service.
Transfer Switch Automatic Operation
In AUTO, generator starts automatically when utility
source voltage drops below preset level. Loads are trans-
ferred to standby power source once unit starts.
Proceed as follows to select automatic operation:
1. Verify transfer switch main contacts are set to
UTILITY (loads connected to utility power source).
2. Verify normal utility power source voltage is avail-
able to transfer switch terminal lugs N1, N2, and
N3 (if three-phase).
3. Set generator MLCB (generator disconnect) to ON
(CLOSED).
4. Press AUTO on control panel. A green LED illumi-
nates to verify system is in AUTO.
Automatic Sequence of Operation
Utility Failure
If control panel is set to AUTO when utility power fails, a
10 second startup delay timer is started (user program-
mable). If utility power is still absent when time expires,
engine cranks and starts.
Once started, a five second engine warm-up delay timer
starts (user programmable). When time has elapsed,
load is transferred to generator. If utility power is restored
(above 90% of nominal, dealer programmable) between
the time engine is first started and expiration of warm-up
time, controller completes the start cycle and then runs
through its normal cool-down cycle (while load remains
on utility source throughout the episode).
Cranking
The cyclic cranking is controlled as follows:
15 seconds crank, seven seconds rest, seven seconds
crank, seven seconds rest; this sequence is repeated for
a total of six crank cycles.
Load Transfer
With generator running, transfer of load is dependent
upon the operating mode as follows:
AUTO
• Starts and runs if utility power fails (falls below 60% of nominal) for five consecutive sec-
onds (adjustable).
• Starts a five second (adjustable) engine warm-up timer.
• Does not execute transfer if utility power returns before expiration of warm-up timer (but
finishes warm-up and cool-down cycles).
• Transfers back to utility once utility power returns (above 80% of nominal) for 15 consecu-
tive seconds.
• Only shuts down if OFF is pressed or an alarm shutdown occurs.
• Once utility power returns, starts a cool-down cycle before it shuts down.
NOTE: Cool-down cycle is five minutes if turbocharger equipped, one minute if naturally
aspirated.
EXERCISE
• Only works in AUTO.
• Does not exercise if generator is already running in AUTO.
• During exercise cycle, transfers only if utility power fails for 10 consecutive seconds.
MANUAL
• Engine cranks and runs even if utility power is present, but does not transfer to generator.
• Transfers to generator if utility fails (falls below 60% of nominal) for 10 consecutive sec-
onds.
• Transfers back to utility when utility returns for 15 consecutive seconds. Engine continues
to run until AUTO or OFF is pressed.