1
vacon • 8 Safety
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
1.4 Grounding and earth fault protection
The touch current of the drive is more than 3.5 mA AC. The standard EN 61800-5-1 tells that 1 or
more of these conditions for the protective circuit must be true.
The connection must be fixed.
Do not make measurements when the AC drive is connected to mains. It can cause
damage to the drive.
Make sure that there is reinforced protective ground connection. It is mandatory,
because the touch current of the AC drives is more than 3.5 mA AC (refer to EN
61800-5-1). See Chapter 1.4.
Do not use spare parts that are not from the manufacturer. Using other spare parts
can cause damage to the drive.
Before you make measurements on the motor or the motor cable, disconnect the
motor cable from the AC drive.
Do not lift the AC drive from the plastic handles with an elevating device, such as jib
crane or hoist.
Do not touch the components on the circuit boards. Static voltage can cause
damage to these components.
Make sure that the EMC level of the AC drive is correct for your mains. Contact your
local distributor for instructions. An incorrect EMC level can cause damage to the
drive.
Prevent radio interference. The AC drive can cause radio interference in a domestic
environment.
NOTE!
If you activate the autoreset function, the motor starts automatically after an
automatic fault reset. See the Application Manual.
NOTE!
If you use the AC drive as a part of a machine, the machine manufacturer must
supply a mains disconnection device (refer to EN 60204-1).
The AC drive must always be grounded with a grounding conductor that is connected
to the grounding terminal that is identified with the symbol . Not using a ground-
ing conductor can cause damage to the drive.
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