S
AFETY
VACON
•
3
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1
1.SAFETY
This manual contains clearly marked cautions and warnings which are intended for
your personal safety and to avoid any unintentional damage to the product or con-
nected appliances.
Please read the information included in cautions and warnings carefully:
1.1 Warnings
ONLY A COMPETENT ELECTRICIAN IS ALLOWED TO
CARRY OUT THE ELECTRICAL INSTALLATION!
=Dangerous voltage
Risk of death or severe injury
=General warning
Risk of damage to the product or
connected appliances
The components of the power unit of the frequency converter are live when
Vacon 10 is connected to the mains. Coming into contact with this voltage
is extremely dangerous and may cause death or severe injury. The control
unit is isolated from the mains.
The motor terminals U, V, W (T1, T2, T3) and the possible brake resistor
terminals -/+ are live when Vacon 10 is connected to the mains, even if the
motor is not running.
The control unit I/O-terminals are isolated from the mains. However, the
relay output terminals may have a dangerous control voltage present even
when Vacon 10 is disconnected from the mains.
Ground leakage current of Vacon 10 frequency converters exceeds 3.5mA
AC. According to standard EN61800-5-1, a reinforced protective ground
connection must be ensured.
If the frequency converter is used as a part of a machine, the machine
manufacturer is responsible for providing the machine with a main switch
(EN 60204-1).
If Vacon 10 is disconnected from the mains while running the motor, it
remains live if the motor is energized by the process. In this case the
motor functions as a generator feeding energy to the frequency converter.
After disconnecting the frequency converter from the mains, wait until the
fan stops and the indicators on the display disappear. Wait 5 more minutes
before doing any work on Vacon 10 connections.
!
