Interconnect System Self Test Feature
Upon power up, this controller will go through a system
self test which will check for the presence of utility
voltage on the DC circuits. This is done to prevent
damage if the installer mistakenly connects AC utility
power sense wires into the DC terminal block. If utility
voltage is detected, the controller will display a warning
message and lock out the generator, preventing damage
to the controller. Power to the controller must be removed
to clear this warning.
Utility voltage must be turned on and present at the N1
and N2 terminals inside the generator control panel for
this test to be performed and pass.
NOTE: All appropriate panels must be in place during
any operation of the generator. This includes operation
by
a
servicing
technician,
troubleshooting procedures.
Before starting, complete the following:
1. Verify that the generator is OFF.
2. Set the generator main circuit breaker to OFF or
OPEN.
3. Turn off all breakers that will be powered by the
generator.
4. Check the engine crankcase oil level and, if
necessary, fill to the dipstick FULL mark with the
recommended oil. Do not fill above the FULL mark.
5. Check the fuel supply. Gaseous fuel lines must
have been properly purged and leak tested in
accordance with applicable fuel-gas codes. All fuel
shutoff valves in the fuel supply lines must be open.
During initial start up only, the generator may exceed the
normal number of start attempts and experience an
"OVERCRANK" fault. This is due to accumulated air in
the fuel system during installation. Reset the control
board by pushing the OFF button and ENTER key, and
restart up to two more times if necessary. If unit fails to
start, contact a local dealer for assistance.
Check Manual Transfer Switch
Operation
Refer to the "Manual Transfer Operation" section of the
Owner's Manual for procedures.
DANGER
Electrocution. Do not manually transfer under load.
Disconnect transfer switch from all power sources
prior to manual transfer. Failure to do so will result
in death or serious injury, and equipment damage.
Installation Guidelines For 50 Hz Air-Cooled Generators
Electrical Checks
Complete electrical checks as follows:
while
conducting
(000132)
DANGER
Electrocution. High voltage is present at
transfer switch and terminals. Contact with live
terminals will result in death or serious injury.
1. Verify that generator is OFF.
2. Set the generator main circuit breaker to OFF or
OPEN.
3. Turn OFF all circuit breakers/electrical loads that
will be supplied by the generator.
4. Turn on the utility power supply to the transfer
switch using the means provided (such as a utility
main line circuit breaker).
5. Use an accurate AC voltmeter to check utility
power source voltage across transfer switch
terminals N1 and N2. Nominal line-to-line voltage
should be 220/230/240 volts AC. If voltage is not
correct, verify AC output and wiring from utility
source to N1 and N2 lugs at transfer switch.
6. Check
utility
power
terminals N1 and the transfer switch neutral lug;
then across terminal N2 and neutral. Nominal line-
to-neutral voltage should be 110 volts AC (if wired
with a neutral). If voltage is not correct, verify AC
output and wiring from utility source to N1 and N2
lugs at transfer switch.
7. When certain that utility supply voltage is
compatible with transfer switch and load circuit
ratings, turn OFF the utility power supply to the
transfer switch.
8. On the generator panel, push the MANUAL button.
The engine should crank and start.
9. Let the engine warm up for about five minutes to
allow internal temperatures to stabilize. Then, set
the generator main circuit breaker to ON or
CLOSED.
10. Connect an accurate AC voltmeter and a
frequency meter across transfer switch terminal
lugs E1 and E2. Voltage should be 218-222 at a
frequency of 49.5-50.5 Hz. If voltage is not correct,
verify that the MLCB is closed and verify AC output
and frequency (Hertz or Hz) at the MLCB. Also
verify wiring from generator to E1 and E2 lugs at
transfer switch.
11. Connect the AC voltmeter test leads across
terminal lugs E1 and neutral; then across E2 and
neutral (if wired with a neutral). In both cases,
voltage reading should be 109-111 volts AC. If
voltage is not correct, verify that the MLCB is
closed and verify AC output between the E1 and
E2 of the MLCB and Neutral at the generator. Also,
Control Panel/Start-Up/Testing
(000129)
source
voltage
across
27