Lenze EVF9383 - Manual (Page 195)

Optimising the operating behaviour
Motor magnetising current with vector control
6.11
6.11.4
l
6.11−11 EDSVF9383V EN 7.1−04/2012
(
Stop!
A longer operation of the motor in standstill may destroy the
motor by overheating, especially in case of small motors.
ƒ Connect the thermal contact (NC contact), PTC, or KTY of the
motor and activate the motor temperature monitoring of the
controller.
ƒ Operate self−ventilated motors with a blower, if required.
Basic setting
1. Enter the motor data of the motor nameplate and execute the motor
identification. ( ¶ 6.6−15)
2. For magnetising the motor, consider enough time. The motor is being
magnetised between controller enable and motor start.
A delayed start of the motor can be achieved using e.g. the quick stop
function:
– Activate quick stop. Enable the controller and wait until the motor is
magnetised sufficiently. Deactivate quick stop for the motor to start.
The bigger the motor the longer the time for magnetisation. A motor with
the power of 90 kW requires up to 2 s.
If the desired continuous current does not flow, the magnetisation of the
motor can be optimised using the codes C0080, C0095 and C1583.
Adjustment