1
vacon • 4
Safety
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
1.
S
AFETY
This manual contains clearly marked warning information which is intended for your personal safe-
ty and to avoid any unintentional damage to the product or connected appliances.
Please read the warning information carefully.
VACON
®
20 X is a drive designed to control asynchronous AC motors and permanent magnet mo-
tors. The product is intended to be installed in a restricted access location and for a general pur-
pose use.
Only VACON
®
authorized, trained and qualified personnel are allowed to install, operate and
maintain the drive.
1.1
Signs
The cautions and warnings are marked as follows:
1.2
Units
The dimensions used in this manual conform to International Metric System units, otherwise known
as SI (Système International d’Unités) units. For the purpose of the equipment's UL certification,
some of these dimensions are accompanied by their imperial equivalents.
Table 1. Warning signs.
= DANGEROUS VOLTAGE!
= HOT SURFACE!
= WARNING or CAUTION
Table 2. Unit conversion table.
Physical
dimension
SI value
US value
Conversion factor
US designation
length
1 mm
0.0394 inch
25.4
inch
Weight
1 kg
2.205 lb
0.4536
pound
Speed
1 min
-1
1 rpm
1
revolution per
minute
Temperature
1 °C (T1)
33.8 °F (T2)
T2 = T1 x 9/5 + 32
Fahrenheit
Torque
1 Nm
8.851 lbf in
0.113
pound-force
inches
Power
1 kW
1.341 HP
0.7457
horsepower