Owner`s manual

Maintenance
3.0 Scope
This chapter describes maintenance and service of MGE UPS Systems Modular Inverter System, including safety
instructions, preventive maintenance, descriptions of replacement kits, and service.
3.1 Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS FOR INVERTER SERVICING SHOULD BE PERFORMED OR SUPER-
VISED BY QUALIFIED PERSONNEL ONLY.
3.2 Preventative Maintenance
3.2.1 Preventative Maintenance Procedures
The following preventive maintenance routines should be considered as a minimum requirement. Your installation
and site may require additional preventive maintenance to assure optimal performance from MGE UPS Systems
static inverter system and its associated equipment. We strongly recommend a contract with MGE UPS Systems
Electronics Customer Support Services for preventive and remedial maintenance.
The technician or electrician performing preventive maintenance on the inverter must be familiar with the indicators,
control methods, and operation of the inverter as described in this manual. All power to the inverter must be removed.
3.2.2 Dust Removal and Exterior Cleaning
Ensure that all equipment is clean and free of loose dust, dirt, and debris. The exterior of all enclosures may be
cleaned with a mild solution of soap and water (only when unit is safely powered down), lightly applied with a lint-free cloth.
WARNING
The green grounding wire at the TB1-4 to E1 ground lug needs to be
removed, If the inverter is to be attached to AC input power, instead of an
AC free environment.
WARNING
DC input power to the inverter is normally from a bank of batteries with
potentially high short circuit current capability. Accidental welding and
severe burns are highly possible if mistake occurs during connecting or
disconnecting these conductors.
WARNING
IMPORTANT SAFETY INSTRUCTIONS FOR INVERTER SERVICING SHOULD BE
PERFORMED OR SUPERVISED BY QUALIFIED PERSONNEL ONLY.
Owner’s Manual
Maintenance page 3 — 1