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4/08 UDC3200 Universal Digital Controller Operator Manual iii
Symbol Definitions
The following table lists those symbols used in this document to denote certain conditions.
Symbol Definition
This CAUTION symbol on the equipment refers the user to the Product Manual for
additional information. This symbol appears next to required information in the manual.
WARNING
PERSONAL INJURY: Risk of electrical shock. This symbol warns the user of a
potential shock hazard where HAZARDOUS LIVE voltages greater than 30 Vrms, 42.4
Vpeak, or 60 VDC may be accessible. Failure to comply with these instructions
could result in death or serious injury.
ATTENTION, Electrostatic Discharge (ESD) hazards. Observe precautions for
handling electrostatic sensitive devices
Protective Earth (PE) terminal. Provided for connection of the protective earth (green
or green/yellow) supply system conductor.
Functional earth terminal. Used for non-safety purposes such as noise immunity
improvement. NOTE: This connection shall be bonded to protective earth at the source
of supply in accordance with national local electrical code requirements.
Earth Ground. Functional earth connection. NOTE: This connection shall be bonded to
Protective earth at the source of supply in accordance with national and local electrical
code requirements.
Chassis Ground. Identifies a connection to the chassis or frame of the equipment shall
be bonded to Protective Earth at the source of supply in accordance with national and
local electrical code requirements.