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1.8 Installing the Filter
Installation location is important. Full nominal current is available when the following installation conditions are met:
Maximum surrounding air temperature is 45 °C (113 °F)
Minimum surrounding air temperature is -30 °C (-22 °F).
Altitude is less than 1000 m (3280 ft) above sea level.
There is enough free space above and below the filter.
Vibration levels according to IEC 60721-3-3:2019 have been considered.
For temperatures and altitudes outside this range, as well as derating values, see
.
Identify the sine-wave filter frame. See
If the reference in an illustration, text, or table applies to all variants, the second character is replaced with an
x
, for exam-
ple S1x02, indicating both S1A02 and S1C02.
Make sure that the operating environment and electrical installation meet the environmental conditions according to IEC
61800-2:2021. Unless stated otherwise, the same standards apply for the filters as for the drives.
Indoor unconditioned/pollution degree 2.
Overvoltage category 3.
Provide required clearance above and below the filter. See step 2 in the Illustrations section.
Mount the filter on or against a solid, non-combustible mounting surface such as concrete or metal.
For S1x02–S1x04, use 4 screws for vibration levels specified in IEC 60721-3-3:2019 3M11 and IEC 60721-3.3:2019 3M12.
For S1x05–S1x08, use 4 screws for vibration levels specified in IEC 60721-3-3:2019 3M11.
For S1x05–S1x08, use 8 screws for vibration levels specified in IEC 60721-3-3:2019 3M12.
Install the filter following steps 1–3 in the Illustrations section. Certain illustrations or steps apply to specific filter frames
and are marked as such.
Configure the specific drive parameters (P3.5.1, P3.5.2, and P3.5.3) for sine-wave filter operation. Setting too low a switching
frequency can damage the filter. For information on configuring parameters, see the iC7 application guide.
1.9 Fuses and Cable Sizes
N O T I C E
WIRING GUIDELINES
All wiring must comply with local and national regulations regarding cross-section and ambient temperature requirements.
Loose connections can cause equipment faults or reduced performance. Tighten the terminals according to the proper torque
value shown in the illustrations.
Minimize interference by keeping control wires as short as possible and separate from high-power cables.
Tighten the terminals according to the proper torque value shown in the illustrations.
Follow the same guidelines for filter cables as for drive cables. For more information, refer to the
iC7-Automation Frequency
Converters, 1.3–1260 A Design Guide
.
AN405139032638en-000201 / 136R0277 | 7
Danfoss A/S © 2022.05
Instructions
Sine-wave Filter OF7S1
Installation Guide
