Safety
vacon • 5
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
1
1.3
Danger
The
components of the power unit of
VACON
®
20 X drives
are live
when the drive
is connected to the mains potential. Coming into contact with this voltage is
extremely dangerous
and may cause death or severe injury.
The
motor terminals (U, V, W) are live
when VACON
®
20 X Drive is connected to
the mains, even if the motor is not running.
After disconnecting
the AC drive from the mains,
wait
until the indicators on the
keypad go out (if no keypad is attached, see the indicators on the cover). Wait an
additional 30 seconds before starting any work on the connections of VACON
®
20
X Drive. After expiration of this time, use measuring equipment to absolutely
ensure that no voltage is present.
Always ensure absence of voltage before start-
ing any electrical work!
The control I/O-terminals are isolated from the mains potential. However, the
relay outputs and other I/O-terminals may have a dangerous control voltage
present even when VACON
®
20 X Drive is disconnected from the mains.
During a coast stop (see the Application Manual), the motor is still generating
voltage to the drive. Therefore, do not touch the components of the AC drive
before the motor has completely stopped. Wait until the indicators on the keypad
go out (if no keypad is attached, see the indicators on the cover). Wait an addi-
tional 30 seconds before starting any work on the drive.