Cable lug connection to the connection box (example only, the connection box may look different)
9. Screw the cable gland to the connection box as shown in the Figure above. Tighten the cable gland
from the body of the gland. See Chapter
.
Tighten from the body of the cable gland with the correct torque. Then tighten the cap of
the cable gland manually, but so that the insulation does not come out of the joint.
10. Tighten the cable lug. Use tightening torque of 15 Nm.
11. Repeat the procedure to the other cables.
12. Check that the phase connections order in the connection box is correct, that is, the corresponding
phases between the inverter and the machine are connected (U, V, W correspond to the L1, L2, L3
phases).
13. Close the connection box. Tighten the connection box cover screws. See Chapter
Use thread locking compound that makes it possible to remove the screws. (For example
Loctite 221).
Check the power cable shield grounding, see Chapter
.
Low voltage connections
Electric machine can have a low voltage connector or optionally a low voltage connection box
(LVB1).
The electric machine has a connector or a connection box which is used to read out in-built temperature
and rotation sensor (resolver) data from the electric machine. The temperature data comes from PT100
sensors in the stator windings and in some cases in the bearings. The rating plate has the information
about the options of the electric machine: different options add sensors, and some electric machines do
not have all the sensors. For more information about the options, refer to Chapter
Recommended cable types for low voltage connections
Application
Cable type
Resolver cabling
Shielded cable (twisted pair)
Temperature measurement (PT100)
Shielded cable (twisted pair)
User Guide
EM-PMI300-T310
Installation
40 |
©
Danfoss | April 2023
BC265858156812en-000202