Commissioning
vacon • 61
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
6
6.3
Running the motor
MOTOR RUN CHECK LIST
6.3.1
Cable and motor insulation checks
1.
Motor cable insulation checks
Disconnect the motor cable from terminals U, V and W of the AC drive and from the motor.
Measure the insulation resistance of the motor cable between each phase conductor as well as
between each phase conductor and the protective ground conductor. The insulation resistance
must be >1M
Ω
at ambient temperature of 20°C.
2.
Mains cable insulation checks
Disconnect the mains cable from terminals L1, L2 and L3 of the AC drive and from the mains.
Measure the insulation resistance of the mains cable between each phase conductor as well as
between each phase conductor and the protective ground conductor. The insulation resistance
must be >1M
Ω
at ambient temperature of 20°C
.
3.
Motor insulation checks
Disconnect the motor cable from the motor and open the bridging connections in the motor
connection box. Measure the insulation resistance of each motor winding. The measurement
voltage must equal at least the motor nominal voltage but not exceed 1000 V. The insulation
resistance must be >1M
Ω
at ambient temperature of 20°C.
3
NOTE!
After having performed the change write
‘EMC level modified’
on the sticker
included in the VACON
®
100 X delivery (see below) and note the date. Unless already
done, attach the sticker close to the name plate of the AC drive.
Before starting the motor
, check that the motor is
mounted properly
and ensure
that the machine connected to the motor allows the motor to be started.
Set the maximum motor speed (frequency) according to the motor and the machine
connected to it.
Before reversing the motor
make sure that this can be done safely.
Make sure that no power correction capacitors are connected to the motor cable.
Make sure that the motor terminals are not connected to mains potential.
Product modified
Date:
Date:
Date:
EMC-level modified C1->C4
DDMMYY
