Safety
vacon • 2
1
1.
S
AFETY
This manual contains clearly marked cautions and warnings which are intended for your per-
sonal safety and to avoid any unintentional damage to the product or connected appliances.
Please read the information included in cautions and warnings carefully.
VACON
®
20 X is a drive conceived for controlling asynchronous AC motors and permanent
magnet motors. The product is inteded to be installed in a restricted access location and for
a general purpose use.
Only by Vacon authorized, trained and qualified personnel are allowed to install, operate and
maintain the drive.
The cautions and warnings are marked as follows:
Table 1. Warning signs.
1.1
Danger
= DANGEROUS VOLTAGE!
= HOT SURFACE!
= WARNING or CAUTION
The
components of the power unit of
VACON
®
20 X drives
are live
when the drive
is connected to 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
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
additional 30 seconds before starting any work on the connections of VACON
®
20
X Drive. After expiration of this time, use a 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 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 additional
30 seconds before starting any work on the drive.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]