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Safety Precautions
WARNING
The voltage of the adjustable frequency drive is dangerous whenever connected to line power. Incorrect installation of
the motor, adjustable frequency drive or serial communication bus could cause death, serious personal injury or damage
to the equipment. Consequently, the instructions in this manual, as well as national and local rules and safety regula-
tions, must be complied with.
WARNING
Safety Regulations
1.
The line power supply to the adjustable frequency drive must be disconnected whenever repair work is to be
carried out. Make sure that the line power supply has been disconnected and that the necessary time has elapsed
before removing motor and line power supply plugs.
2.
The [OFF] button on the control panel of the adjustable frequency driver does not disconnect the line power supply
and consequently it must not be used as a safety switch.
3. The equipment must be properly grounded, the user must be protected against supply voltage and the motor must
be protected against overload in accordance with applicable national and local regulations.
4.
The ground leakage current exceeds 3.5 mA.
5.
Protection against motor overload is not included in the factory setting. If this function is desired, set par.
1-90
Motor Thermal Protection to data value ETR trip 1 [4] or data value ETR warning 1 [3].
6.
Do not remove the plugs for the motor and line power supply while the adjustable frequency drive is connected
to line power. Make sure that the line power supply has been disconnected and that the necessary time has elapsed
before removing motor and line power plugs.
7.
Please note that the adjustable frequency drive has more voltage sources than L1, L2 and L3, when load sharing
(linking of DC intermediate circuit) or external 24 V DC are installed. Make sure that all voltage sources have been
disconnected and that the necessary time has elapsed before commencing repair work.
Failure to follow recommendations could result in death or serious injury.
WARNING
Warning against unintended start
1.
The motor can be brought to a stop by means of digital commands, bus commands, references or a local stop,
while the adjustable frequency drive is connected to line power. If personal safety considerations (e.g., risk of
personal injury caused by contact with moving machine parts following an unintentional start) make it necessary
to ensure that no unintended start occurs, these stop functions are not sufficient. In such cases, the line power
supply must be disconnected or the
Safe Stop
function must be activated.
2.
The motor may start while setting the parameters. If this means that personal safety may be compromised (e.g.,
personal injury caused by contact with moving machine parts), motor starting must be prevented, for instance by
use of the
Safe Stop
function or secure disconnection of the motor connection.
3.
A motor that has been stopped with the line power supply connected, may start if faults occur in the electronics
of the adjustable frequency drive, through temporary overload or if a fault in the power supply grid or motor con-
nection is remedied. If unintended start must be prevented for personal safety reasons (e.g., risk of injury caused
by contact with moving machine parts), the normal stop functions of the adjustable frequency drive are not suffi-
cient. In such cases, the line power supply must be disconnected or the
Safe Stop
function must be activated.
Consequently, disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be inadvertently energized. Failure to follow recommendations could
result in death or serious injury.
Safety
1-6 TR200 BACnet