Design Guide | iC7-Automation Air-cooled Enclosed Drives Safety
DANGER
DISCHARGE TIME (5 OR 20 MINUTES)
The drive contains capacitors, which can remain charged even when the drive is not powered. High voltage
can be present even when the warning indicator lights are off.
Failure to wait for the given discharge time after power has been removed before performing service or repair
work can result in death or serious injury.
l Stop the system.
l Disconnect all inputs and outputs that can supply energy to the drive.
l Wait for the capacitors to discharge fully before performing any service on the equipment. The exact
discharge time is also shown on the front cover of the drive. If the device is broken or fuses have tripped,
the discharge time is longer.
Discharge time
AE10, AE11, IE10, IE11: 5 minutes
FE9, FE10: 20 minutes
l Measure the voltage level to verify full discharge.
WARNING
ELECTRIC SHOCK
Drives contain hazardous voltage when a power source is connected to AC or DC terminals. Failure to
disconnect all power sources can result in death or serious injury.
l Before performing any electrical work on the drive, disconnect, lock out, and tag out all power sources to
the drive.
l There is more than 1 live circuit. See the relevant wiring diagram in the product guide.
WARNING
UNINTENDED START
When the drive is connected to a power source, the system may start at any time, causing risk of death, serious injury, and
equipment or property damage.
l Stop the drive and motor before configuring parameters.
l Make sure that the drive cannot be started by an external switch, a fieldbus command, an input reference signal from the
control panel, or after a cleared fault condition.
l Disconnect the drive from the power source whenever safety considerations make it necessary to avoid unintended start.
l Check that the drive, motor, and any driven equipment are in operational readiness.
2.4 Target Group and Necessary Qualifications
Correct and reliable transport, storage, installation, operation, and maintenance are required for the trouble-free and safe operation
of the products. Only qualified personnel are allowed to perform all related activities for these tasks. Qualified personnel are defined
as properly trained staff, who are familiar with and authorized to install, commission, and maintain equipment, systems, and circuits in
accordance with pertinent laws and regulations. Also, the qualified personnel must be familiar with the instructions and safety measures
described in this guide and other relevant guides. Non-qualified electricians are not allowed to perform any electrical installation or
troubleshooting activities.
Danfoss Drives Oy © 2024.09 AJ389643274589en-000101 / 172F6409A | 13
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