Danfoss VLT AutomationDrive FC 302 Manual de instalação - Página 6

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Danfoss VLT AutomationDrive FC 302 Manual de instalação

Safety

2 Safety
2
2

2.1 Safety Symbols

The following symbols are used in this manual:
WARNING
Indicates a potentially hazardous situation that could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that could
result in minor or moderate injury. It can also be used to
alert against unsafe practices.
NOTICE
Indicates important information, including situations that
can result in damage to equipment or property.

2.2 Qualified Personnel

Correct and reliable transport, storage, installation,
operation, and maintenance are required for the trouble-
free and safe operation of the frequency converter. Only
qualified personnel are allowed to install and operate this
equipment.
Qualified personnel are defined as trained staff, who are
authorised to install, commission, and maintain equipment,
systems, and circuits in accordance with pertinent laws and
regulations. Additionally, the qualified personnel must be
familiar with the instructions and safety measures
described in these operating instructions.

2.3 Safety Precautions

WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to perform installation, start-up, and maintenance
by qualified personnel can result in death or serious
injury.
•
Only qualified personnel must perform instal-
lation, start-up, and maintenance.
4
®
VLT
CANopen MCA 105
UNINTENDED START
When the frequency converter is connected to AC mains,
DC supply, or load sharing, the motor may start at any
time. Unintended start during programming, service, or
repair work can result in death, serious injury, or
property damage. The motor can start with an external
switch, a fieldbus command, an input reference signal
from the LCP or LOP, via remote operation using MCT 10
Set-up Software, or after a cleared fault condition.
To prevent unintended motor start:
•
•
•
DISCHARGE TIME
The frequency converter contains DC-link capacitors that
can remain charged even when the frequency converter
is not powered. Failure to wait the specified time after
power has been removed before performing service or
repair work, can result in death or serious injury.
•
•
•
•
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly can result in death or
serious injury.
•
Danfoss A/S © 05/2015 All rights reserved.
WARNING
Disconnect the frequency converter from the
mains.
Press [Off/Reset] on the LCP before
programming parameters.
Completely wire and assemble the frequency
converter, motor, and any driven equipment
before connecting the frequency converter to
AC mains, DC supply, or load sharing.
WARNING
Stop the motor.
Disconnect the AC mains and remote DC-link
supplies, including battery back-ups, UPS, and
DC-link connections to other frequency
converters.
Disconnect or lock the PM motor.
Wait for the capacitors to discharge fully before
performing any service or repair work. The
duration of waiting time is specified in the
relevant frequency converter operating
instructions, Chapter 2 Safety.
WARNING
Ensure the correct grounding of the equipment
by a certified electrical installer.
MG33J402