Vacon 20 X Quick Manual

THE TECHNICAL DATA OF THE VACON 20 X AC DRIVE
®
Technical item or function
3AC 208...240V
Input voltage U in 1AC 208...240V
3AC 380...480V
Input voltage tolerance -15%...+10% continuously
Input frequency 50/60 Hz
Input frequency tolerance 45...66 Hz
Protection class I
Mains
Connection to mains Once per minute or less
connection
Starting delay 4 s
IT and TN-networks
Supply network (cannot be used with corner earthed
networks)
Maximum short-circuit current
Short-circuit current
has to be <50kA
Available as standard in
DC connection
MU2 single-phase frames and MU3
Output voltage 3AC 0...U in
Rated output current I N : Ambient temperature max. +40°C
Overload output current 1.5 x I N (1 min/10 min)
Starting current I S for 2 s every 20 s (I S = 2.0 * I N )
Output frequency 0...320 Hz
Motor
Frequency resolution 0.01 Hz
connection
Protection class I
AC squirrel cage motors
Motor characteristics
Permanent magnet motors
Cable type Screened motor cable
Cable maximum length 30 m
Programmable 2...16 kHz;
Default 6 kHz.
Switching frequency
Automatic switching frequency
derating in case of overheating
Frequency reference:
Resolution ±0.05% (11-bit),
Analogue input
Control
accuracy ±1% Resolution 0.01 Hz
characteristics Panel reference
Field weakening point 8...320 Hz
Acceleration time 0.1...3000 sec
Deceleration time 0.1...3000 sec
Brake chopper standard in all three-phase
Braking
frames. External brake resistor optional.
CABLE AND FUSE SIZES,
NORTH AMERICA
Technical data
The recommended fuse types are class
T (UL & CSA). The fuse voltage rating
should be selected according to the supply
network. The final selection should be
made according to local regulations,
cable installation conditions and cable
specifications. Bigger fuses than those
recommended below shall not be used.
Check that the fuse operating time is less
than 0.4 seconds. Operating time depends
on used fuse type and impedance of the
supply circuit. Consult the factory about
faster fuses. VACON® also recommends
for high speed J (UL & CSA) fuse ranges.
UL STANDARDS ON CABLING
To obey the UL (Underwriters Laboratories)
regulations, use a UL-approved Class 1
copper wire with a minimum heat
resistance of +158 or +167 °F (+70 or +75°C).
You can use the drive on a circuit that gives
a maximum of 50 000 rms symmetrical
amperes, and a maximum of 500 V AC,
when the drive is protected by Class T and
J fuses.
The dimensions of the cables must agree
with the requirements of the UL508C.
• The cables must be PVC-isolated.
• The maximum ambient temperature
is +104 °F (+40°C).
• The maximum temperature of the
cable surface is +158 or +167 °F
(+70 or +75°C).
• Use only cables with a concentric
copper shield.
• The maximum number of parallel
cables is 9.
When you use parallel cables, make sure
that you obey the requirements of the
cross-sectional area and the maximum
number of cables.
For important information on the
requirements of the grounding conductor,
see the UL508C.
For the correction factors for each
temperature, see the instructions of the
UL508C.
VACON 20 X AC DRIVES
®
INSTALLATION
IN US AND CANADA
QUICK GUIDE
DPD01821B
Download and read VACON 20 X Installation Manual,
®
wall-mounted drives at:
http://drives.danfoss.com/knowledge-center/
technical-documentation/