Danfoss VLT Midi Drive FC 280 Instruction Manual

2 Safety
2.1 Safety Symbols
The following symbols are used in this document:
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 Qualied Personnel
Correct and reliable transport, storage, installation,
operation and maintenance are required for the trouble-
free and safe operation of the frequency converter. Only
qualied personnel are allowed to install or operate this
equipment.
Qualied personnel are dened as trained sta who are
authorized to install, commission and maintain equipment,
systems and circuits in accordance with pertinent laws and
regulations. Also, personnel must be familiar with the
instructions and safety measures described in this guide.
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 qualied personnel can result in death or serious
injury.
•
Only qualied personnel must perform instal-
lation, start-up and maintenance.
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 serial communication bus command, an input
reference signal from the LCP, via remote operation using
MCT 10 Set-up Software or after a cleared fault
condition.
To prevent unintended motor start:
•
Disconnect the adjustable frequency drive from
line power.
•
Press [O/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
DISCHARGE TIME
The adjustable frequency drive contains DC link
capacitors that can remain charged even when the
adjustable frequency drive is not powered. High voltage
can be present even when the warning LED indicator
lights are o. Failure to wait the specied time after
power has been removed before performing service or
repair work can result in death or serious injury.
•
Stop the motor.
•
Disconnect AC line power and remote DC link
supplies, including battery backups, UPS and
DC link connections to other adjustable
frequency drives.
•
Disconnect or lock PM motor.
•
Wait for the capacitors to discharge fully. The
minimum waiting time is specied in Table 2.1.
•
Before performing any service or repair work,
use an appropriate voltage measuring device to
make sure that the capacitors are fully
discharged.
Safety Instruction Manual
MG07A122 Danfoss A/S © 11/2015 All rights reserved. 5
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Danfoss VLT Midi Drive FC 280 Specifications

General

Brand	Danfoss
Model	VLT Midi Drive FC 280
Category	DC Drives
Language	English