Safety; Safety Symbols; Qualified Personnel - Danfoss FC 101 Quick Manual

Safety

2 Safety
2 2

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 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 personnel must be familiar
with the instructions and safety measures described in this
manual.
2.3 Safety
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC power 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.
4
Quick Guide
UNINTENDED START
When the frequency converter is connected to AC mains,
DC power 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 by means of an
external switch, a serial bus command, an input
reference signal from the LCP or LOP, via remote
operation using MCT 10 software, or after a cleared fault
condition.
To prevent unintended motor start:
•
•
•
DISCHARGE TIME!
Frequency converters contain DC-link capacitors that can
remain charged even when the frequency converter is
not powered. To avoid electrical hazards, disconnect AC
mains, any permanent magnet type motors, and any
remote DC-link power supplies, including battery
backups, UPS and DC-link connections to other
frequency converters. Wait for the capacitors to fully
discharge before performing any service or repair work.
The amount of waiting time is listed in Table 2.1. Failure
to wait the specified time after power has been removed
before doing service or repair could result in death or
serious injury.
Voltage [V]
Table 2.1 Discharge Time
Danfoss A/S © 08/2014 All rights reserved.
WARNING
Disconnect the frequency converter from the
mains.
Press [Off/Reset] on the LCP before
programming parameters.
Ensure that the frequency converter is fully
wired and assembled when it is connected to
AC mains, DC power supply, or load sharing.
WARNING
Power range [kW(HP)]
3x200 0.25–3.7 (0.33-5)
3x200 5.5–11 (7-15)
3x400 0.37–7.5 (0.5–10)
3x400 11–90 (15–125)
3x600 2.2–7.5 (3–10)
3x600 11–90 (15–125)
Minimum waiting time
(minutes)
4
15
4
15
4
15
MG18A602