Danfoss VLT DeviceNet MCA 104, Руководство по установке

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2 Safety
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 or 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.
•
Installation, start-up, and maintenance must be
performed by qualified personnel only.
WARNING
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:
•
Disconnect the frequency converter from the
mains.
•
Press [Off/Reset] on the LCP before
programming parameters.
•
The frequency converter, motor, and any driven
equipment must be fully wired and assembled
when the frequency converter is connected to
AC mains, DC supply, or load sharing.
WARNING
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.
•
Stop the motor.
•
Disconnect the AC mains and remote DC-link
power 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
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly can result in death or
serious injury.
•
Ensure the correct grounding of the equipment
by a certified electrical installer.
Safety
VLT
®
DeviceNet MCA 104
4 Danfoss A/S © Rev. 03/2015 All rights reserved. MG33D502
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