Safety; Warnings; Safety Instructions - Vacon NX_ 0003 5 User Manual

SAFETY

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SAFETY

1.1

Warnings

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WARNING
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1.2

Safety instructions

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Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
ONLY A COMPETENT ELECTRICIAN MAY CARRY OUT
THE ELECTRICAL INSTALLATION
The Vacon NX_ AC drive is meant for fixed installations only.
Do not perform any measurements when the AC drive is connected to the
mains.
Do not perform any voltage withstand tests on any part of Vacon NX_. There
is a certain procedure according to which the tests shall be performed.
Ignoring this procedure may result in damaged product.
The earth leakage current of Vacon NX_ AC drives exceeds 3.5mA AC.
According to standard EN61800-5-1, a reinforced protective ground
connection must be ensured. See chapter 1.3.
If the AC drive is used as a part of a machine, the machine manufacturer is
responsible for providing the machine with a main switch (EN 60204-1).
Only spare parts delivered by Vacon can be used.
The motor starts at power-up if the start command is 'ON'. Furthermore,
the I/O functionalities (including start inputs) may change if parameters,
applications or software are changed. Disconnect, therefore, the motor if an
unexpected start can cause danger.
Prior to measurements on the motor or the motor cable, disconnect the
motor cable from the AC drive.
Do not touch the components on the circuit boards. Static voltage discharge
may damage the components.
The components of the power unit of the AC drive are live when Vacon NX_
is connected to mains potential. Coming into contact with this voltage is
extremely dangerous and may cause death or severe injury. The control
unit is isolated from mains potential.
The motor terminals U, V, W and the DC-link/brake resistor terminals are live
when Vacon NX_ is connected to mains, even if the motor is not running.
After disconnecting the AC drive from the mains, wait until the fan stops and the
indicators on the keypad go out (if no keypad is attached see the indicators on the
cover). Wait 5 more minutes before doing any work on Vacon NX_ connections.
Do not even open the cover before this time has expired.
The control I/O-terminals are isolated from the mains potential. However, the
relay outputs and other I/O-terminals may have a dangerous control voltage
present even when Vacon NX_ is disconnected from mains.
Before connecting the AC drive to mains make sure that the Vacon NX_
front and cable covers are closed.
vacon • 7
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