99
017-882-B0-001 Rev. E (06/2018)
3.0 Operation, Continued
1.
Before turning on the AC voltage input breaker, use a voltmeter to verify the input voltage is within specifications.
2. When the proper voltage is present, verify the battery voltage indicated on the Smart Display is greater than
31.5VDC. Disconnect the power supply from the generator output and plug the power supply input cord into the
convenience outlet within the enclosure. The power supply operates on battery backup for this short period of
time, but exercise caution during this changeover as the grounding circuit to the power supply is broken.
3. Turn on the AC input power.
4.
Shut down the generator and remove the grounding system. If necessary use the Smart Display to return the
Frequency Input Tolerance back to the normal ±3Hz range.
3.9 Resumption of Utility Power
Use caution when disconnecting and reconnecting a generator to utility power. Dangerous
voltages are present.
WARNING! ELECTRICAL HAZARD
Exercise care to ensure that both of the powering systems are NOT
connected at the same time or
damage to the power supply and the generator may result.
CAUTION!
If the batteries are at or below the low voltage cutoff, then the power supply will NOT transfer to battery backup and
there will be a momentary power outage to the cable system while you make this changeover.
NOTICE
:
•
The power supply must be serviced by qualified personnel.
• Use heavy gloves when handling a unit that has recently been taken out of service. The
ferroresonant transformer generates heat that may cause burns if handled with bare hands.
• Alpha Technologies is not responsible for battery damage due to improper charger voltage settings.
Consult the battery manufacturer for correct charger voltage requirements.
• When removing batteries, ALWAYS switch the battery breaker OFF before unplugging the battery
connector.
• Always wear safety glasses when working with batteries.
CAUTION!
