ABB ACS580-07 - Connecting the Motor Cable at the Motor End; Checking the Insulation of the Motor and Motor Cable; Connection Procedure (IEC, Frames R6 to R9)

￭ Connecting the motor cable at the motor end
Connect the power cables at the motor end.
For minimum radio-frequency interference, ground the cable shield 360 degrees at the cable
entry of the motor terminal box.
Checking the insulation of the motor and motor cable
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death, or
damage to the equipment can occur.
If you are not a qualified electrician, do not do installation or maintenance work.
1.
Stop the drive and do the steps in section Electrical safety precautions (page 20) before
you start the work.
2. Check that the motor cable is disconnected from the drive output terminals.
3. Measure the insulation resistance between the phase conductors and then between
each phase conductor and the protective earth conductor. Use a measuring voltage of
1000 V DC. The insulation resistance of an ABB motor must exceed 100 Mohm
(reference value at 25 °C [77 °F]). For the insulation resistance of other motors, consult
the manufacturer’s instructions.
Note:
Moisture inside the motor casing reduces the insulation resistance. If moisture is
suspected, dry the motor and repeat the measurement.
1000 V DC,
>
100 Mohm
U1-V1, U1-W1, V1-W1
U1-PE, V1-PE, W1-PE
M
3~
U1
V1
W1
PE
ohm
ohm
￭ Connection procedure (IEC, frames R6 to R9)
1.
Do the steps in section Electrical safety precautions (page 20) before you start the work.
2. Open the cabinet door.
3. For drives without option +E205: To remove the mounting plate, undo the mounting
screws and unplug the connectors on top of it:
• auxiliary voltage supply connectors X23, X22 and X21
• Contactor control connectors: X3, X6
96 Electrical installation