ABB Symphony Harmony Series, Instruction, Page: 52 / 402

WBPEEUI240751C0 xv
Safety Summary
Electrostatic Sensitive Device
Devices labeled with this symbol require special handling precau-
tions as described in the installation section.
GENERAL
WARNINGS
Equipment Environment
All components, whether in transportation, operation or storage,
must be in a noncorrosive environment.
Electrical Shock Hazard During Maintenance
Disconnect power or take precautions to insure that contact with
energized parts is avoided when servicing.
SPECIFIC
WARNINGS
An I/O module should not be inserted or removed with power
applied when located in a class I, division 2 hazardous location
unless the area is known to be nonhazardous. (p. 3-7, PR3-1,
PR28-1)
Verify the main power, field power, and power entry panel circuit
breakers/switches are turned off before starting installation, retrofit,
upgrade, or wiring procedures. Failure to do so could result in
severe or fatal shock. Do not turn the power on until the installation,
retrofit, upgrade, or wiring procedures are complete. (p. PR19-1,
PR20-1, PR21-2, PR22-1, PR23-1, PR31-1)
Turn off all power before attempting the connections check mainte-
nance procedure. Failure to do so could result in severe or fatal
shock, or equipment damage. (p. PR27-1)
Verify power is turned off before starting the replacement proce-
dure. Failure to do so could result in severe or fatal shock. Do not
turn the power on until the replacement procedure is complete.
(p. PR33-1, PR34-1)