Danfoss iC7 Series Operating Manual page 6

iC7 Series PROFINET
Operating Guide
UNINTENDED START
When the drive is connected to the AC mains or connected on the DC terminals, the motor may start at any time, causing risk of
death, serious injury, and equipment or property damage.
-
Press [Off] on the control panel - if present - before configuring parameters.
-
Make sure that the drive cannnot be started by external switch, a fieldbus command, an input reference signal from the con-
trol panel, via remote operation using MyDrive
-
Disconnect the drive from all power sources whenever personal safety considerations make it necessary to avoid unintended
motor start.
-
Check that the drive, motor, and any driven equipment are in operational readiness.
DISCHARGE TIME
The drive contains DC-link 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 the specified time after power has been removed before performing service or repair work could result in death or
serious injury.
-
Stop the motor.
-
Disconnect AC mains, permanent magnet type motors, and DC-link connections to other drives.
-
Wait for the capacitors to discharge fully before performing any service or repair work. The exact discharge time is shown on
the front cover of the drive.
-
Use a measuring device to make sure that there is no voltage, before opening the drive or performing any work on the ca-
bles.
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the drive properly can result in death or serious injury.
-
Ensure that the minimum size of the ground conductor complies with the local safety regulations for high touch current
equipment.
EQUIPMENT HAZARD
Contact with rotating shafts or electrical equipment can result in death or serious injury.
-
Ensure that only trained and qualified personnel perform installation, start-up, and maintenance.
-
Ensure that electrical work conforms to national and local electrical regulations.
-
Follow the procedures in this guide.
INTERNAL FAILURE HAZARD
An internal failure in the drive can result in serious injury when the drive is not properly closed.
-
Ensure that all safety covers are in place and securely fastened before applying power.
6 | Danfoss A/S © 2023.06
W A R N I N G
software tools, or after a cleared fault condition.
®
D A N G E R
W A R N I N G
W A R N I N G
C A U T I O N
Introduction and Safety
AQ408626183394en-000101 / 136R0280