Danfoss VLT FC 102 Installation Instructions

Installation Instructions
VLT® Frequency Converter
Spare Inverter IGBT
FC 102/FC 103/FC 202/FC 301/FC 302/FC 322
The IGBT package, which contains six output switches, is
referred to as a module. In smaller units, one module is
required. In larger units, two or three modules are connected
in parallel.
The IGBT spare part kit includes the following:
•
IGBT module
•
thermal grease package
•
fasteners
Spare part kits may contain different manufacturers' modules.
Spare part modules are backward and forward compatible
provided all frequency converter modules are from the same
manufacturer.
1.1 Safety Instructions
Only qualified personnel are allowed to install the fuses
described in these installation instructions. Personnel must be
familiar with the instructions and safety measures described in
the frequency converter operating instructions in addition to
these installation instructions.
WARNING
DISCHARGE TIME
The frequency converter contains DC-link capacitors, which
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,
could result in death or serious injury.
1. Stop the motor.
2. Disconnect AC mains, permanent magnet type
motors, and remote DC-link supplies, including
battery back-ups, UPS, and DC-link connections to
other frequency converters.
3. Wait for the capacitors to discharge fully, before
performing any service or repair work. The duration
of waiting time is specified in Table 1.1.
Voltage [V]
380–500
525–600
525–690
High voltage may be present even when the warning indicator lights
are off!
Table 1.1 Discharge Time
1.2 Pre-Installation Considerations
NOTICE
ELECTROSTATIC DISCHARGE
Follow proper ESD precautions to prevent damage to
sensitive components.
Danfoss A/S © Rev. 5/2015 All rights reserved.
Minimum waiting time (minutes)
4
1.1–7.5 kW (1.5–10 hp)
1.1–7.5 kW (1.5–10 hp)
—
•
A proper thermal interface is required between the
IGBT modules and the heat sink. Failure to follow
these instructions will result in a poor thermal bond
and cause premature IGBT failure.
•
Ensure the environment is free of airborne dust and
contaminants while applying the thermal compound.
•
For frequency converters with two modules, replace
both modules even if only one is defective. For
frequency converters with three modules, it is
acceptable to replace only the defective module as
long as all modules are from the same manufacturer.
15
11–90 kW (15–125 hp)
11–90 kW (15–125 hp)
11–90 kW (15–125 hp)
MI92B102