-
-
-
-
-
-
-
-
-
-
-
-
-
W A R N I N G
LIFTING HEAVY LOAD
The filter is heavy. Failure to follow local safety regulations for lifting heavy weights may cause death, personal injury, or property
damage.
Follow local regulations for lifting.
Check the weight of the filter. The weight is provided on the outside of the shipping box and the exterior of the filter.
If needed, ensure that the lifting equipment is in proper working condition and can safely lift the weight of the filter.
Use the integrated lifting eyes to lift the filter.
Test lift the unit to verify the proper center of gravity lift point. Reposition if not level.
W A R N I N G
HAZARDOUS VOLTAGE
Sine-wave filters contain hazardous voltage when connected to an iC7 drive. Failure to perform installation, start-up, and mainte-
nance by qualified personnel can result in death or serious injury.
Only qualified personnel must perform installation, start-up, and maintenance.
Never work on a filter in operation.
W A R N I N G
DISCHARGE TIME
The drive and filter contain capacitors that can remain charged even when the drive is powered off. High voltage can be present
in filter terminals even when the drive's warning 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.
Stop the motor.
Disconnect all power sources, including permanent magnet type motors.
Wait for the drive capacitors to discharge fully. The discharge time is shown on the exterior of the drive.
Verify full discharge by measuring the voltage level between the motor phases on the filter's output terminals (U2, V2, W2).
W A R N I N G
INDUCED VOLTAGE
Induced voltage from output motor cables that run together can charge equipment capacitors, even with the equipment turned
off and locked out. Failure to run output motor cables separately or to use shielded cables could result in death or serious injury.
Run output motor cables separately or use shielded cables.
Simultaneously lock out all the drives.
AN405139032638en-000201 / 136R0277
4 | Danfoss A/S © 2022.05
Instructions
Sine-wave Filter OF7S1
Installation Guide
