1 Quick Guide
1.1 Safety
1.1.1 Warnings
WARNING
High Voltage Warning
The voltage of the frequency converter is dangerous
whenever it is connected to mains. Incorrect installation
of the compressor or frequency converter may cause
damage to the equipment, serious injury or death.
Consequently, it is essential to comply with the
instructions in this manual as well as local and national
rules and safety regulations.
WARNING
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 compressors, and
any remote DC-link power supplies, including battery
back-ups, UPS, and DC-link connections to other
frequency converters. Wait for the capacitors to fully
discharge before performing any service or repair work.
The waiting time is listed in the Discharge Time table.
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] Cooling capacity [TR] Minimum waiting time
(min)
3x200 4-6.5 15
3x400 4-5 4
3x400 6.5 15
Table 1.1 Discharge Time
CAUTION
Leakage Current
The ground leakage current from the frequency
converter exceeds 3.5 mA. According to IEC 61800-5-1 a
reinforced Protective Earth connection must be ensured
with a min. 10 mm
2
Cu or an additional PE wire - with
the same cable cross-section as the mains wiring - must
be terminated separately.
Residual Current Device
This product can cause a DC current in the protective
conductor. Where a residual current device (RCD) is used
for extra protection, only an RCD of Type B (time
delayed) shall be used on the supply side of this
product. See also Danfoss Application Note on RCD,
MN90G.
Protective earthing of the frequency converter and the
use of RCDs must always follow national and local
regulations.
WARNING
Installation at High Altitudes
For altitudes above 2000 m, contact Danfoss regarding
PELV.
1.1.2 Safety Instructions
•
Make sure the frequency converter is properly
connected to ground.
•
Do not remove mains connections, compressor
connections or other power connections while
the frequency converter is connected to power.
•
Protect users against supply voltage.
•
Protect the compressor against overloading
according to national and local regulations.
•
The ground leakage current exceeds 3.5 mA.
•
The [Off/Reset] key is not a safety switch. It does
not disconnect the frequency converter from
mains.
1.2
Introduction
1.2.1 Available Literature
This Quick Guide contains basic information necessary for
installing and running the frequency converter. Supple-
mentary publications and manuals are available from
Danfoss. See www.danfoss.com/BusinessAreas/DrivesSo-
lutions/ Documentations/VLT+Technical+Documentation.htm
for listings.
Quick Guide
Quick Guide
2 Danfoss A/S © Rev. 09/2014 All rights reserved. MG18M102
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