Alpha Technologies XM2-300CE-HP - Manual (Page 52)

4.8 Providing Power via Portable Generator or Inverter, continued
4.8.1 AC Powering, continued
7. In either case, after the power from the generator is applied to the power supply,
use the Smart Display to increase the Frequency Input Tolerance to ±6Hz from the
normal ±3Hz, inhibiting the power supply from switching to battery backup if the
generator occasionally does not operate on the proper frequency. It is not uncommon
for smaller (4 kilowatt or less) sized generators to get “off frequency” due to the step
loading of the power supply.
4.8.2 Using a Truck-mounted Inverter or Generator
To use a truck-mounted inverter or generator follow the steps listed in Section
4.8.1. with the additional step of grounding the truck. Run the ground wire from an
unpainted point on the truck chassis to either a driven ground rod or strand ground
to complete the grounding circuit. The rubber tires on the truck insulate it from being
grounded in all but the most exceptional circumstances.
Ground the vehicle before operating a truck inverter or truck-mounted generator. Failure to
do so places service personnel at risk for electric shock.
WARNING!
52 017-877-B1-001 Rev. A