Anti-condensation heater connections
Do not run the electric machine when the anti-condensation heater is in use.
Water condensing inside the electric machine enclosure can result in failure or corrosion of the
machine. This often happens in cooler temperatures or higher humidity areas typically in marine
environment, when the machine is not running.
The electric machine can be equipped with anti-condensation heater to avoid condensation
issues. The heater (+HEAT1) or heaters (+HEAT2) are factory assembled see Figure Heater
connector locations . The installed heater may not be used when the machine mains are switched
on, and the machine is running.
After installation of the machine, and any time when needed, the resistance of the warming
element can be measured. Connect the measurement device between the heater terminals. The
resistance shall be around 1 kΩ. Measuring no value, or zero value indicates a possible failure in
the heater element.
Figure 31. Connection of the heater element
EM-PMI540-T3000
6. Installation
| BC265857716810en-000103
©
Danfoss | Produced By: Danfoss Power Solutions | November 2018 | 43
Summary of Contents for EM-PMI540-T3000
Page 1: ...User Guide Motor Generator EM PMI540 T3000 danfoss com...
Page 67: ......