8000

Access Machine Data Parameters

Navigate to HMI → Commissioning → Machine → MD Machine Data → Axis-specific → MD36100

Always backup current MD settings before making changes

Verify Current Limit Value

Check MD36100 value against machine's actual physical travel range and compare with mechanical drawings

Ensure new limit doesn't exceed physical machine capabilities

Adjust Software Limit

Modify MD36100 to appropriate value based on machine specifications, then execute Reset → Power On to activate changes

Test Axis Movement

Perform controlled JOG movements in both directions to verify proper limit functionality without triggering alarm

Check Active Work Offset

Navigate to HMI → Parameters → Work Offsets to verify current G54-G59 values and active coordinate system

Use machine coordinate display to see actual position relative to machine zero

Verify Coordinate Calculation

Check if workpiece coordinate + work offset + tool offset exceeds MD36100 limit in machine coordinates

Correct Work Offset Values

Adjust work offset parameters or reposition workpiece setup to ensure all programmed positions remain within software limits

Validate with Dry Run

Execute program in dry run mode with feed override at minimum to verify all positions stay within limits

Check Reference Point Status

Verify R1 indicator is active on HMI axis status display - if not lit, reference point is lost

Never assume axis position is accurate without valid reference point

Execute Reference Point Return

Navigate to HMI → Machine → Reference Point and execute homing sequence for X-axis using G74 or manual REF function

Verify Homing Parameters

Check MD34200 (reference point coordinate) and related homing MDs to ensure proper reference point establishment

Confirm Position Accuracy

After successful homing, verify displayed position matches known physical position using reference tools or fixtures

Identify Problematic Block

Note the NC block number displayed with alarm 8000 and locate corresponding line in program editor

Use program simulation to trace axis movement without actual machine motion

Analyze Coordinate Values

Check if programmed X-coordinates exceed MD36100 limit, considering active work offsets and tool corrections

Modify Program or Setup

Either edit NC program coordinates or adjust work offset/fixture setup to keep all positions within software limits

Validate Program Boundaries

Use program verification or graphics simulation to confirm entire program operates within defined software limits

Check Servo Diagnostics

Navigate to HMI → Diagnostics → Servo → Drive Status to examine encoder signals and following error values

Encoder issues can cause unpredictable axis behavior - use extreme caution

Monitor Position Feedback

Observe actual position values during slow JOG movements for erratic readings or position jumps

Verify Drive Parameters

Check drive-specific parameters and encoder scaling factors in SINAMICS or servo drive configuration

Test Encoder Integrity

Perform encoder diagnostic tests through drive interface or measure encoder signals with oscilloscope if available

Intermittent encoder faults often worsen with machine vibration or temperature changes