Safety; Qualified Personnel; Safety Precautions - Danfoss VLT DriveMotor FCP 106 Operating Instructions Manual

Safety

2 Safety
2 2
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.

2.1 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
authorized 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.

2.2 Safety Precautions

WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input power. Failure to perform
installation, start-up, and maintenance by qualified
personnel could result in death or serious injury.
•
Only qualified personnel are permitted to
perform installation, start-up, and maintenance.
8
VLT® DriveMotor FCP 106/FCM 106
UNINTENDED START
When the frequency converter is connected to AC mains,
DC supply, or load sharing, the motor can 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 a
software tool, or after a cleared fault condition.
To prevent unintended motor start:
•
•
•
DISCHARGE TIME
The frequency converter contains DC-link capacitors,
which can remain charged even when the frequency
converter is not powered. High voltage can be present
even when the warning LED indicator lights are off.
Failure to wait the specified time after power has been
removed before performing service or repair work can
result in death or serious injury.
•
•
•
•
•
Danfoss A/S © 11/2015 All rights reserved.
WARNING
Disconnect the frequency converter from mains.
Press [Off/Reset] on the LCP before
programming parameters.
Ensure that the frequency converter, motor, and
any driven equipment are fully wired and
assembled when the frequency converter is
connected to AC mains, DC supply, or load
sharing.
WARNING
Stop the motor.
Disconnect AC mains and remote DC-link power
supplies, including battery back-ups, UPS, and
DC-link connections to other frequency
converters.
Disconnect or lock PM motor.
Wait for the capacitors to discharge fully. The
minimum duration of waiting time is specified
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.
MG03L302