WARNING
CONDENSATION
Condensation must not be allowed to form on the inside
of the frequency converter. The flow of refrigerant must
be controlled in a way that ensures that the temperature
of the internal heatsink stays above the dew point.
Failure to control condensation will result in damage to
the frequency converter.
3.3.2 Lifting
WARNING
RISK OF INJURY OR DEATH
The lifting bar must be able to handle the weight of the
frequency converter to ensure that it will not break
during lifting.
•
See chapter 5.1 Power-dependent Specifications
for the weight of the different enclosure types.
•
Maximum diameter for bar is 2.5 cm (1 inch).
•
The angle from the top of the frequency
converter to the lifting cable should be 60° or
greater.
Failure to follow recommendations could result in death
or serious injury.
3.3.3
Wall Mounting - IP21 (NEMA 1) Units
Consider the following before selecting the final instal-
lation site:
•
Free space for cooling
•
Access to open the door
•
Cable entry from the bottom
3.4
Electrical Installation
3.4.1 General Requirements
This section contains detailed instructions for wiring the
frequency converter. The following tasks are described:
•
Wiring the motor to the frequency converter
output terminals
•
Wiring the AC mains to the frequency converter
input terminals
•
Connecting control and serial communication
wiring
•
After power has been applied, checking input
and motor power
WARNING
EQUIPMENT HAZARD!
Rotating shafts and electrical equipment can be
hazardous. All electrical work must conform to national
and local electrical codes. It is strongly recommended
that installation, start up, and maintenance be
performed only by trained and qualified personnel.
Failure to follow these guidelines could result in death or
serious injury.
CAUTION
WIRING ISOLATION!
Run input power, motor wiring and control wiring in
three separate metallic conduits or use separated
shielded cable for high frequency noise isolation. Failure
to isolate power, motor and control wiring could result
in less than optimum frequency converter and associated
equipment performance.
Installation
Installation Guide
MG35Q202 Danfoss A/S © 01/2015 All rights reserved. 7
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