Safety; Safety Symbols; Qualified Personnel; Safety Precautions - Danfoss VLT Series Installation Manual

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.
8
®
VLT Plus Panel
INSTALLATION IN HIGH ALTITUDES
All VLT
altitudes not exceeding 1000 m (3280 ft), even if the
installed frequency converters are specified for use in
higher altitudes.
Do not start up VLT
1000 m (3280 ft) without contacting Danfoss.
NOTICE
All thermal calculations are performed on maximum
altitudes of 1000 m (3280 ft) and maximum 30 °C (86 °F)
ambient conditions. Contact Danfoss if the values are
exceeded.
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:
•
•
•
Danfoss A/S © 09/2015 All rights reserved.
WARNING
®
Plus Panels are designed for installations in
®
Plus Panels in altitudes exceeding
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.
MG13B102