5motor interface – Lenze 9400 User Manual
Page 211
Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
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5
Motor interface
5.8
Parameterisable additional functions
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Parameter setting
• The flying restart algorithm injects a current into the motor to identify the current speed. This
flying restart current can be parameterised in
in [%] relating to the rated motor current.
• The higher the current the higher the torque imposed upon the motor.
• If the current is too low, a wrong speed can be detected.
• The starting frequency of the flying restart algorithm can be set in
.
• If it can be anticipated at which frequency the motor "caught" most frequently in a flying
restart process, this frequency is to be set here.
• The integration time of the phase controller is set in
.
• The Lenze setting "60 ms" is adapted for machines with a medium power (45 kW).
• A guide value for the integration time can be calculated with the following equation as a
function of the motor power (
):
• For accelerating the flying restart process, this guide value can be reduced.
• If the flying restart frequency (Frequency.dnActualRotatingFieldFrequency) oscillates too
much, the integration time has to be increased again.
• A longer integration time increases the time for "catching" the drive.
• To avoid starting a flying restart process at short-time controller inhibit, a time can be set in
for the minimum active controller inhibit time.
• Since a pulse inhibit > 500 ms causes a controller inhibit, this also applies to the pulse inhibit.
Short overview: Parameters for flying restart process
Parameter
Info
Lenze setting
Value Unit
Flying restart: Activation
Off
Flying restart: Current
15 %
Flying restart: Start frequency
20.0 Hz
Flying restart: Integration time
60 ms
Flying restart: Min. deviation
5.00 °
Flying restart: Delay time
0 ms
T
i
1.1μs
W
------
Motor power (C00081)
⋅
9.4 ms
+
=