Mount the electric machine on a correct supporting structure that is discussed in chapter
"Supporting structure requirements".
1. Lift the electric machine to the correct mounting position. See Chapter Lifting for details.
2. The electric machine is mounted using its foot mount (stand) and, if needed, D-end ange (SAE
1/2 transmission housing). SAE 1/2 mating transmission housing is required as a mating ange.
3. Align the machine with the mating housing alignment. See Chapter Shaft alignment and load.
4. Connect the shaft of the electric machine.
A recommended spline lubricant is a 50/50 compound of a high temperature grease and a molybdenum disulphide
powder. When applied initially and re-applied at proper intervals, it will help prevent fretting corrosion and premature
wear. This lubricant is not soluble in oil and should be used accordingly. Further products which may be recommended
are Molycote, Meta ux, Never Seeze, Optimol and similar.
Cooling connections
Make sure that cooling liquid runs freely into and out from the machine.
Connect the electric machine properly to the cooling circuit. Ensure that the coolant ow is equal
or higher than rated and the coolant temperature at the inlet of the machine cooling is lower or
equal to the rated temperature. For more information, see Chapter Recommended coolants and
product data sheet. Rated values can be found in the machine rating plate.
It is recommended to use coolant connector equipped with o-ring seal or to use sealing washer
(for example Usit or Bonded seals) in the connection. In addition, it is recommended to use thread
sealant (Loctite 577 or similar) at the coolant connections to prevent loosening. Loosening can be
caused by vibration or temperature variations.
The electric machines are equipped with at least three PT100 temperature sensors in the windings.
The amount of the sensors depend on the options chosen. The temperature signal(s) can be read
out from the measurement connector of the machine.
You can connect the temperature signal to the temperature monitoring pin in the inverter (EC-C)
and make sure that the inverter has the machine temperature protection feature activated.
Electrical installation
Power connections
High voltage connection
Risk of electric shock when connection box is open. When you work with power connections make sure that electricity is
disconnected and shaft rotation is prevented.
The high voltage cables of the electric machine are connected to the connection box, or
connection boxes of the machine. Figure below shows the components of the high voltage
connection box assembly.
1. Remove the cover of the terminal box.
2. Install the power cables according to the wiring diagram.
3. Replace the cover of the terminal box.
EM-PMI540-T3000
6. Installation
30 |
©
Danfoss | Produced By: Danfoss Power Solutions | November 2018
| BC265857716810en-000103
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