TDE MACNO MINIOPD EXP User Manual page 18

it starts the second test:
P79=0 : meaning that is missing at least one Encoder channel, therefore A14 code
o
0 is triggered
P79<0 : meaning that Encoder channels are exchanged, therefore A14 code 0 is
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triggered
P79>0 : everything is ok
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In the second part is checked the Encoder pulses reading, well known from P69 parameter the
number of edges in a mechanical turn (P69x4, because are counted both two channels edge).
At the end of the test, P79 is updated again with the total edges number:
|P79- (P69x4)|/(P69x4) < 12,5% : test is successful
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otherwise the alarm A15 code 3 is triggered. In the first check if it is correct the
Encoder number of pulses per revolution and the number of motor poles.
P79 < (P69x4): the real pulses counted are less than expected. Encoder could
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have some problems or the motor load is too high. Try to increase the test current
with parameter P114 that is the percentage of rated motor current applied in the
test (default value 50%).
P79 > (P69x4) : the real pulses counted are more than expected. Could be some
o
noise in the Encoder signals.
The test is successful if the drive switch off and does not trigger an alarm. Now disable RUN
command. The subsequent tests can now be carried out
2.1.4.6 AUTO-TUNING PROCEDURES
2.1.4.6.1 SENSOR TESTS
This is the first test to be carried out. It is in two parts:
Check that the direction of rotation of the motor phases and the sensor correspond;
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Check that the number of motor poles is written correctly in parameter P67 and the
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speed sensor used is set correctly.
Correct operation requires a no-load motor so decouple it from the load.
After setting the drive to STOP and opening the reserved parameter key (P60=95), set C41=1 to
enable the test. The following setting will appear on the display:
The drive is now ready to start the test. To start reading, enable RUN with its digital input or working
with connection C21 (commands in series)Once the test has started, this setting will appear on the
display:
and the motor will rotate in the positive direction first to ensure the direction matches and will then
rotate again to ensure the motor phases and the sensor are set correctly.
During the test, the motor will make a complete revolution at low speed.
If the drive sets off an alarm during the test, an error has occurred. Check to see which alarm has
been triggered and deal with the problem accordingly:
If A14 code=1 is enabled, the test current is too low, check if the motor phases are
o
correctly connected to the drive
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Do not worry if this revolution is a little noisy.