Web Tension Control Verification Log

Inspection log for verifying dancer and load cell tension setpoints and actual readings across a web line to confirm tension remains within acceptable range and prevent wrinkles, breaks, and quality defects.

Line Identification and Setup

• Line, machine, and job identification recorded
  Enter the line name/number, machine ID, job or work order number, and product being run.
• Inspection time and shift recorded
  Record the date and time of the verification and the current shift.
• Web path and tension zones identified
  Document the web path and the key tension zones being verified, such as unwind, infeed, process sections, and rewind.
• Reference standard or SOP available at point of use
  Confirm the current operating procedure, setup sheet, or control specification is available for comparison.
• Required PPE worn for line inspection
  Select all PPE used during the inspection.
• Guarded access and safe approach confirmed
  Confirm the inspector can observe the tension controls without bypassing guards or entering unsafe pinch-point areas. If adjustment requires access to guarded equipment, follow OSHA 1910.147 lockout-tagout and site procedures.

Tension Control Settings

• Unwind tension setpoint recorded
  Record the unwind tension setpoint.
• In-process tension setpoint recorded
  Record the target tension setpoint for the active process zone.
• Rewind tension setpoint recorded
  Record the rewind tension setpoint.
• Dancer position within operating range
  Record the dancer position or percentage and confirm it remains within the defined operating band.
• Load cell control mode and calibration status verified
  Confirm the load cell system is in the correct control mode and the calibration status is current per site requirements.

Measured Tension Readings

• Unwind actual tension reading
  Record the measured unwind tension reading.
• In-process actual tension reading
  Record the measured tension reading at the main process zone.
• Rewind actual tension reading
  Record the measured rewind tension reading.
• Measured tension stays within approved operating range
  Confirm the measured readings are within the approved operating range for the product and line speed.
• Tension variation between zones acceptable
  Record the maximum tension variation observed between zones or checkpoints.

Web Condition and Defect Check

• No wrinkles, folds, or edge curl observed
  Confirm the web is running flat and free of wrinkles, folds, edge curl, or tracking-related distortion.
• No web breaks, tears, or splice failures observed
  Confirm there are no breaks, tears, splice failures, or other web integrity defects during the inspection period.
• No slack web, flutter, or excessive stretch observed
  Confirm the web remains stable without slack, flutter, or visible stretch that could indicate poor tension control.

Corrective Action and Sign-off

• Deficiency or non-conformance documented
  Indicate whether any tension-related deficiency or non-conformance was found during the inspection.
• Corrective action completed or escalated
  Describe any adjustment, maintenance request, escalation, or hold placed on the job. Include the responsible person if applicable.
• Inspection result
  Select the overall outcome of the verification.
• Inspector signature
  Inspector sign-off confirming the verification is complete and accurate.