Installation manual

Safety
975-0601-01-01 Revision B xi
This manual is for use by qualified personnel only.
Lock-out and Tag-out Procedure
Lock out refers to the practice of preventing de-energized circuits from being
reenergized by putting locks on the disconnecting devices, holding them open.
Tag out refers to the practice of attaching a tag to the disconnect device locks
warning others not to operate the disconnect device and containing information
relating to the lock out, such as the person responsible, the reason, and the date
and time. Combined these two practices are called the lock-out and tag-out
procedure (LOTO).
Follow the LOTO procedure to fully de-energize all sources of supply external to
the Xantrex GT500, allowing installation and access to all parts of all assemblies,
including behind internal barriers, during installation and maintenance.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, AND ARC FLASH
• Read all instructions, cautionary markings, and all other appropriate
sections of this Manual and all labels on the product before installing,
operating, troubleshooting, or maintaining the Xantrex GT500.
• The Xantrex GT500 must be installed only by qualified personnel and
serviced only by authorized service personnel equipped with appropriate
personal protective equipment and following safe electrical work practices.
• The Xantrex GT500 is energized from multiples sources: the PV array while
exposed to light, the AC grid, and possibly an auxiliary AC source (if used).
Before opening doors or covers:
• Consult the system diagram to identify all sources.
• De-energize, lock out, and tag out all sources.
• Wait at least 5 minutes for internal capacitors to discharge to safe
voltages.
• Operation of the switches in or on the Xantrex GT500 does not remove all
power from the Xantrex GT500. Switch terminals and other parts remain live
unless the PV, AC, and auxiliary AC (if used) have been disconnected
externally.
• Before servicing, test using a meter rated at least 1000 volts AC and DC to
make sure all circuits are de-energized.
• The Xantrex GT500 is provided with integral PV ground fault protection.
Normally GROUNDED conductors could be UNGROUNDED and
ENERGIZED when a GROUND FAULT is indicated.
• Replace all devices, doors, and covers before re-energizing or turning on
power to the Xantrex GT500.
Failure to follow these instructions will result in death or serious injury.