VACON 20 X Danfoss Drives User Guide

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/

20 X Danfoss Drives

CABLE AND FUSE SIZES, NORTH AMERICA
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.

THE CABLE AND FUSE SIZES FOR VACON® 20 X IN NORTH AMERICA, MAINS VOLTAGE 208-240 V AND 380-500 V

Frame| Type| IL [A]| Fuse (class T)
[A]| Mains and
motor cable
Cu| Terminal cable size
---|---|---|---|---|---
Main terminal| Earth terminal
MU2| 0004 2
0003 4 – 0004 4| 4.3
3.2 – 4.0| 6| AWG14| AWG24-AWG12| AWG17-AWG I 0
0005 2 – 0007 2
0005 4 – 0006 4| 6.8 – 8.4
5.6 – 7.3| 10| AWG14| AWG24-AWG12| AWG17-AWG10
0008 4| 9.6| 15| AWG14| AWG24-AWG12| AWG I 7-AWGIO
MU2
1-phase| 0004 2| 8.3| 20| AWG14| AWG24-AWG12| AWG17-AWG10
0005 2| 11.2| 20| AWG14| AWG24-AWG12| AWG17-AWG10
0007 2| 14.1| 25| AWG14| AWG24-AWG12| AWGI7-AWG10
MU3| 0011 2
0009 4| 13.4
11.5| 15| AWG14| AWG20-AWG6| AWG17-AWG10
0012 2
0012 4| 14.2
14.9| 20| AWG12| AWG20-AWG6| AWG17-AWG10
0017 2
0016 4| 20.6
20.0| 25| AWG10| AWG20-AWG6| AWG17-AWG10

THE TIGHTENING TORQUES OF CABLE TERMINALS

Frame| Type| Tightening torque
Power and motor terminals| Tightening torque
EMC grounding clamps| Tightening torque
Grounding terminals
---|---|---|---|---
[Nm]| lb-in.| [Nm]| lb-in.| [Nm]| lb-in.
MU2| 0003 4—0008 4
0004 2—0007 2| 0.5—0.6| 4.5—5.3| 1.5| 13.3| 2.0| 17.7
MU3| 0009 4—0016 4
0011 2—0017 2| 1.2—1.5| 10.6—13.3| 1.5| 13.3| 2.0| 17.7

CABLE ENTRIES, MU2 AND MU3 INSTALLATIONS

TIGHTENING TORQUE OF NPT ADAPTERS TO METRIC THREADS CABLE ENTRIES

Frame| Thread male metric| Thread male
NPT| Tightening torque
---|---|---|---
[Nm]| lb-in.
MU2| M20| 1/2”| 2.0| 17.7
M25| 3/4”| 4.0| 35.5
MU3| M25| 3/4”| 4.0| 35.5

NPT adapter order information
M20: ADEC M20-T12
M25: ADEM M25-T34

THE TECHNICAL DATA OF THE VACON® 20 X AC DRIVE

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
Connection to mains| Once per minute or less
Starting delay| 4 s
Supply network| IT and TN-networks
(cannot be used with corner earthed networks)
Short-circuit current| Maximum short-circuit current has to be <50kA
DC connection| Available as standard in
MU2 single-phase frames and MU3
Motor connection| Output voltage| 3AC 0…U in
Rated output current| IN: Ambient temperature max. +40°C
Overload output current| 1.5 x IN (1 min/10 min)
Starting current| Is for 2 s every 20 s (Is = 2.0 * IN)
Output frequency| 0…320 Hz
Frequency resolution| 0.01 Hz
Protection class| I
Motor characteristics| AC squirrel cage motors Permanent magnet motors
Cable type| Screened motor cable
Cable maximum length| 30 m
Control characteristics| Switching frequency| Programmable 2…16 kHz; Default 6 kHz.
Automatic switching frequency deratinq in case of overheating
Frequency reference:
Analogue input  Panel reference| Resolution t0.05 (11-bit),
accuracy ±1% Resolution 0.01 Hz
Field weakening point| 8…320 Hz
Acceleration time| 0.1…3000 sec
Deceleration time| 0.1…3000 sec
Braking| Brake chopper standard in all three-phase frames. External brake resistor optional.

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