Danfoss VLT AQUA Drive FC 202, Installation Manual

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4 Electrical Installation
4.1 Safety Instructions
See chapter 2 Safety for general safety instructions.
WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables that run
together can charge equipment capacitors even with the
equipment turned off and locked out. Failure to run
output motor cables separately or use shielded cables or
metal conduits could result in death or serious injury.
•
run output motor cables separately, or
•
use shielded cables or metal conduits
CAUTION
SHOCK HAZARD
The adjustable frequency drive can cause a DC current in
the PE conductor. Failure to follow the recommendation
means that the RCD may not provide the intended
protection.
•
When a residual current-operated protective
device (RCD) is used for protection against
electrical shock, only an RCD of Type B is
permitted on the supply side.
NOTICE!
The adjustable frequency drive is supplied with Class 20
motor overload protection.
Overcurrent protection
•
Extra protective equipment, such as short-circuit
protection or motor thermal protection between
adjustable frequency drive and motor, is required
for applications with multiple motors.
•
Input fusing is required to provide short circuit
and overcurrent protection. If not factory-
supplied, the installer must provide fuses. See
maximum fuse ratings in
chapter 8.4 Fuseschapter 8.4 Fuses .
Wire type and ratings
•
All wiring must comply with local and national
regulations regarding cross-section and ambient
temperature requirements.
•
Power connection wire recommendation:
minimum 167 °F [75
°
C] rated copper wire.
See chapter 8.1 Power-Dependent Specifications and
chapter 8.3 General Technical Data - Adjustable Frequency
Drive
for recommended wire sizes and types.
4.2 EMC-compliant Installation
To obtain an EMC-compliant installation, follow the
instructions provided in
chapter 4.4 Groundingchapter 4.4 Grounding ,
chapter 4.5 Input Optionschapter 4.3 Power Connections ,
chapter 4.6 Motor Connectionchapter 4.6 Motor Connection ,
and chapter 4.8 Control Wiringchapter 4.8 Control Wiring .
4.3 Power Connections
NOTICE!
Cables–General Information
All cabling must comply with national and local
regulations on cable cross-sections and ambient
temperature. UL applications require 167°F [75
°
C] copper
conductors. For non-UL applications, 167°F and 194°F
[75° and 90
°
C] copper conductors are thermally
acceptable.
The power cable connections are situated as shown in
Figure 4.1 . Dimension cable cross-section in accordance
with the current ratings and local legislation. See
chapter 8.3.1 Cable lengths and cross-sections for details.
To protect the adjustable frequency drive, use the
recommended fuses if there are no built-in fuses. Fuse
recommendations are provided in . Ensure that proper
fusing is made according to local regulation.
The AC line input connection is fitted to the line power
switch if included.
Figure 4.1 Power Cable Connections
Electrical Installation Installation Manual
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