1Safety
1.1.1 Symbols
Symbols used in this manual:
NOTE!
Indicates something to be noted by the reader.
Indicates a general warning.
Indicates a high-voltage warning.
✮ Indicates a default setting
1.1.2 High voltage warning
The voltage of the adjustable frequency drive and the MCO 101 option card is dangerous whenever it is connected to line power.
Incorrect installation of the motor or adjustable frequency drive may cause damage to the equipment, serious injury or death. Con-
sequently, it is essential to comply with the instructions in this manual as well as local and national rules and safety regulations.
1.1.3 Safety instructions
Prior to using functions directly or indirectly influencing personal safety (e.g., Safe Stop, Fire Mode or other functions either forcing
the motor to stop or attempting to keep it functioning), a thorough risk analysis and system test must be carried out. The system
tests must include testing failure modes regarding the control signaling (analog and digital signals and serial communication.
NOTE!
Before using fire mode, contact Danfoss
VLT
®
HVAC Drive Instruction Manual 1 Safety
MG.11.A9.22 - VLT
®
is a registered Danfoss trademark
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