
Firmware
≤
02.00 - DMS 2.1 EN - 03/2011
L
89
8400 motec | Software Manual
Motor control (MCTRL)
V/f control (V encoder)
5.7.2
Basic settings
In order to protect the drive system, carry out the commissioning of the V/f control and the
slip regulator in several steps.
Detailed information on the single steps can be found in the following subchapters or
in the corresponding subchapters for V/f characteristic control.
Tip!
Information on the optimisation of the control mode and the adaptation to the
real application is provided in the "
" chapter for the V/
f characteristic control (VFCplus).
Parameterisable additional functions are described correspondingly in the
Parameterisable additional functions
Initial commissioning steps
1. Define V/f characteristic:
•
= 7: Linear characteristic
•
= 9: Square-law characteristic
2.
Defining current limits (Imax controller)
3. Parameterise encoder/feedback system.
4. If special motors with a rated frequency other than 50 Hz or with a number of pole pairs
≠
2 are used, set the
motor parameters according to the motor nameplate.
5. Define speed setpoint (e.g. 20 % of the rated speed) and enable controller.
6. Check whether the actual speed value (
)
≈
speed setpoint (
) and then inhibit the controller
again.
• In case of sign reversal between actual value and setpoint, check the terminals of the encoder (e.g. swap
track A or B of the encoder or reverse actual speed value).
• In case the actual value differs considerably from the setpoint (factor 2), set the motor parameters
according to motor nameplate. Then repeat step 5.
7. For protecting the drive, reduce slip regulator limitation in
• e.g. reduction to half the slip frequency (
≈
2 Hz)
8. Define speed setpoint (e.g. 20 % of the rated speed) and enable controller.
9. In case of a semi-stable operational performance, reduce the reset time (
) or the proportional gain
(
) of the slip regulator until a stable operation has been achieved.
Parameterising the slip regulator
10. In a final step, increase the slip regulator limitation again in
• e.g. increase to double the slip frequency
Содержание 8400 motec Series
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