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Okuma OSP Controller
Servo/Axis · Intermediate
Okuma OSP Alarm A 1697 - MCS Linear scale 2 error
The MCS detected illegal data coming from linear scale 2 (HEIDENHAIN) on the axis shown in the object field. The scale is communicating but the position data it sends is invalid.
1697
Okuma OSP Alarm A 1697 - MCS Linear scale 2 error
MCS Linear scale 2 error
The MCS detected illegal data coming from linear scale 2 (HEIDENHAIN) on the axis shown in the object field. The scale is communicating but the position data it sends is invalid.
Common Causes
- Defective HEIDENHAIN linear scale 2 sending corrupt data
- Damaged scale cable or poor shielding letting noise corrupt the data
- Contamination on the scale tape or readhead
Troubleshooting Steps
- 1Identify the axis from the object field, then lock out power before handling scale connectors.
- 2Reseat the linear scale 2 (HEIDENHAIN) connector and inspect the cable run for crushing, coolant soak, or chafing.
- 3Clean the scale tape and readhead window with the approved cleaner; contamination is a common cause of illegal data.
- 4Check that the scale cable shield is properly grounded at the drive end.
- 5If the illegal data error persists with verified cabling and a clean scale, the corrective action is to change linear scale 2 (HEIDENHAIN) per the manual.
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