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MDS-D2/DH2 Series Instruction Manual
1.5 Installation of the Machine End Encoder
[4] Diagnosis and remedy
When the diagnosis signal bit on [PLG diagn] is "1", check the installation of the PLG encoder again.
<When the waveform of spindle end PLG installation gap diagnosis is abnormal>
The gap between the sensor section and the gear may deviate from the specified value. Confirm that the
sensor section is installed on the notched fitting section properly. Also confirm that the notched fitting section is
machined properly based on the specified dimensions for each PLG encoder.
<When the waveform of spindle end PLG installation all errors diagnosis is abnormal>
The sensor section may deviate from the center of the gear. Confirm the installation of the sensor section and
the gear.
Diagnosis
signal bit
Error details Description Main factor
0 A-phase amplitude excessive The A-phase amplitude is larger than the specified value. Too small gap
1 A-phase amplitude too small The A-phase amplitude is smaller than the specified value. Excessive gap
2
A-phase offset excessive ＋
The A-phase offset is larger than the specified value to + side.
The deviation between the sensor
and the center of the gear
3 A-phase offset excessive - The A-phase offset is larger than the specified value to - side.
The deviation between the sensor
and the center of the gear
4 B-phase amplitude excessive The B-phase amplitude is larger than the specified value. Too small gap
5 B-phase amplitude too small The B-phase amplitude is smaller than the specified value. Excessive gap
6
B-phase offset excessive ＋
The B-phase offset is larger than the specified value to + side.
The deviation between the sensor
and the center of the gear
7 B-phase offset excessive - The B-phase offset is larger than the specified value to - side.
The deviation between the sensor
and the center of the gear
8 Z-phase width excessive The Z-phase width is larger than the specified value. [AL2C factor] Too small gap
9 Z-phase width too small The Z-phase width is smaller than the specified value. Excessive gap
A Z-phase error incorrect output
The relation of the phases between AB and Z is abnormal.
[AL2C factor]
The deviation between the sensor
and the center of the gear
B Z-phase error sliver waveform
The relation of the phases between AB and Z is abnormal.
[AL2C factor]
The deviation between the sensor
and the center of the gear
C Z-phase error no signal The Z-phase signal is not detected. [AL2C factor] Excessive gap, detection gear error
D-- -
E Z-phase error logic reversed The Z-phase logic (normally positive) is reversed. [AL2C factor] Detection gear error
F-- -
CAUTION
1. When finely adjusting the sensor installation position, adjust after turning the power of the drive unit OFF.
2. "00000000" is also displayed in the following cases.
(1) When the spindle parameter #13018/bit1(SP018/bit1) is 0 (open loop disabled)
(2) When the spindle side PLG encoder (TS5690 Series) is not connected