2 Safety and Conformity
2.1.1 Important notes
Proper, safe operation of a device requires that it be properly transported and stored, professionally installed and commissioned, and used as
intended. Only those personnel may work on the device who are familiar with its installation, commissioning, and operation and have appropriate
qualifications for their activities. They must observe the contents of the operating instructions, the notes attached to the device, and all applicable
safety regulations for the setup and operation of electrical installations. These devices are built and tested in compliance with EN 60947-8 and leave
our plant in perfect condition from a safety standpoint. To keep them in this state, you must observe the safety guidelines marked "Warning" in the
operating instructions. Failure to observe safety guidelines can result in death, bodily injury, or damage to the device itself and to other devices and
systems. If the information contained in the operating instructions is insufficient for a particular case, please contact us directly or the representative
responsible for you. Instead of the industry standards and regulations named in these operating instructions and valid in Europe, when operating
the device outside their area of applicability, you must follow the regulations applicable to the country of use.
Warning! EN60204-1 safety circuits. The devices may not be used alone for functions where an automatic restart must be prevented.
2.1.2 Safety Precautions
The voltage of the frequency converter is dangerous whenever connected to mains. Incorrect installation of the motor, frequency
converter or fieldbus may cause damage to the equipment, serious personal injury or death. Consequently, the instructions in this
manual, as well as national and local rules and safety regulations, must be complied with.
Safety Regulations
1.
The mains supply to the frequency converter must be disconnected whenever repair work is to be carried out. Check that the mains supply has
been disconnected and that the necessary time has elapsed before removing motor and mains supply plugs.
2.
The [OFF] button on the control panel of the frequency converterr does not disconnect the mains supply and consequently it must not be used
as a safety switch.
3.
The equipment must be properly earthed, 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 earth 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 mains supply while the frequency converter is connected to mains. Check that the mains supply has
been disconnected and that the necessary time has elapsed before removing motor and mains plugs.
7.
Please note that the frequency converter has more voltage sources than L1, L2 and L3, when load sharing (linking of DC intermediate circuit)
or external 24 V DC are installed. Check that all voltage sources have been disconnected and that the necessary time has elapsed before
commencing repair work.
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 frequency converter
is connected to mains. 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 mains
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.
MCF 106 A/B in C Option Adaptor Instruction
2 Safety and Conformity
MI.38.F1.02 - VLT
®
is a registered Danfoss trademark
5
2
