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Okuma OSP Controller
Servo/Axis · Intermediate
Okuma OSP Alarm A 1695 - MCS Linear scale 3 error
The MCS drive detected illegal data from linear scale 3, a HEIDENHAIN scale, on the axis named in the object. The scale position data cannot be trusted, so the axis is stopped.
1695
Okuma OSP Alarm A 1695 - MCS Linear scale 3 error
MCS Linear scale 3 error
The MCS drive detected illegal data from linear scale 3, a HEIDENHAIN scale, on the axis named in the object. The scale position data cannot be trusted, so the axis is stopped.
Common Causes
- Failed HEIDENHAIN linear scale 3 (internal electronics failure)
- Scale cable or connector fault corrupting the data
- Scale contamination causing read errors
- Electrical noise on the scale signal line
Troubleshooting Steps
- 1Note the axis from the alarm object and inspect the cable and connector of the HEIDENHAIN linear scale 3 for damage, oil or loose pins; reseat both ends.
- 2Clean the scale read head and scale tape if coolant or chips may have contaminated the scanning area, then cycle power and see whether the error returns.
- 3Swap the scale cable with a known-good cable to eliminate a wiring fault.
- 4Check the cable routing for noise exposure and keep the scale cable away from motor power cables with shielding grounded.
- 5If the error persists with good cabling and a clean scale, replace linear scale 3 (HEIDENHAIN) as the manual's corrective action directs, then re-establish the axis reference.
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