On this page
Asset Type
Manufacturer
Model
What This Guide Helps With
Troubleshooting Ysio Max auto-positioning, tube stand, wall stand, or motorized movement faults caused by setup, obstruction, locks, or positioning limits.
Step-by-Step Troubleshooting
1. Ensure Patient Safety First
Do not troubleshoot movement faults while a patient is positioned in the system’s travel path.
Action:
- Remove the patient from the table, wall stand, or exam area if movement is unreliable.
- Keep staff clear of the tube stand, detector stand, table, and any motorized travel path.
- Stop all auto-positioning attempts if the system moves unexpectedly, stalls, or reports a movement fault.
Expected outcome: The area is safe before troubleshooting continues.
Why it matters: Motorized movement faults can create pinch, collision, or positioning hazards if troubleshooting is performed around a patient.
2. Verify the Reported Movement Problem
Confirm exactly which part of the system is affected.
Action:
- Ask staff whether the issue involves auto-positioning not starting.
- Ask staff whether the issue involves the tube stand not moving.
- Ask staff whether the issue involves the wall stand not moving.
- Ask staff whether the issue involves a table tracking issue.
- Ask staff whether the issue involves a detector alignment issue.
- Ask staff whether the issue involves movement stopping mid-travel.
- Ask staff whether the issue involves unexpected brake or lock behavior.
- Ask staff whether the issue involves a collision warning or movement inhibit.
Expected outcome: The fault is narrowed to auto-positioning, tube stand, wall stand, detector, or table-related movement.
If this identifies user setup confusion or a normal safety inhibit, correct the setup and stop.
3. Check for Obstructions in the Travel Path
Inspect the system before assuming a mechanical failure.
Action:
- Check around the tube stand, ceiling rails, wall stand, table, detector area, and floor space.
- Remove stools, step platforms, cables, linen, detector holders, positioning aids, or other equipment from the movement path.
- Confirm nothing is blocking wall stand vertical travel or tube stand longitudinal/transverse movement.
Expected outcome: The system has a clear path for movement.
If removing an obstruction restores normal movement, return the unit to service and document the finding.
4. Check Emergency Stop and Movement Inhibit Conditions
A pressed emergency stop or active safety inhibit may prevent motion.
Action:
- Inspect accessible emergency stop buttons.
- Confirm none are pressed or latched.
- Reset only according to normal site procedure.
- Check for displayed messages indicating movement inhibit, collision protection, brake status, or safety stop.
Expected outcome: No emergency stop or active safety inhibit is preventing movement.
If the issue clears after releasing an emergency stop, test normal movement and document the cause.
5. Confirm System Power and Normal Startup Status
Movement faults can occur if part of the system did not initialize correctly.
Action:
- Confirm the radiographic system is fully powered on.
- Verify the operator console, generator, tube stand, wall stand, and table appear ready.
- Look for warning messages, initialization errors, or communication faults.
- Perform a normal restart if allowed by site workflow and the room is not in clinical use.
Expected outcome: The system completes startup without active motion or communication faults.
If restart restores movement and no fault returns, perform a basic functional check before returning to service.
6. Check Tube Stand and Wall Stand Locks or Brakes
Mechanical locks, brake release issues, or manual positioning controls can cause movement complaints.
Action:
- Verify the tube stand is not locked in a position that prevents requested travel.
- Check whether the wall stand is locked, parked, or at a physical travel limit.
- Operate normal brake release or movement controls as designed.
- Listen for brake release sounds and observe whether the stand attempts to move.
Expected outcome: Brakes release normally and the stand moves smoothly within its allowed range.
If a lock or brake selection was the cause, correct it, retest, and stop.
7. Confirm the Requested Position Is Valid
Auto-positioning may fail if the selected position is outside the system’s safe or allowed travel range.
Action:
- Check the selected exam program, SID, detector location, table position, wall stand position, and tube angle.
- Confirm the system is not already at a hard travel limit.
- Move the tube stand or wall stand slightly away from end-of-travel if safe to do so.
- Try a simple manual movement before retrying auto-positioning.
Expected outcome: The system accepts a valid position and moves normally.
Why it matters: Auto-positioning depends on the system knowing a reachable target position.
8. Check Detector and Bucky Positioning
Auto-positioning may be inhibited if the detector, bucky, or wall stand position is not recognized.
Action:
- Confirm the detector is properly seated in the table bucky or wall stand bucky if the exam requires it.
- Check that the bucky tray is fully inserted and latched.
- Verify the selected receptor matches the intended exam location.
- Confirm no accessory or grid is preventing full seating.
Expected outcome: The system recognizes the detector/receptor position and permits movement.
If reseating the detector or bucky resolves the fault, document the positioning issue and return the system to service.
9. Inspect External Cables and Accessible Connections
Loose or stressed cables can affect communication with motorized components.
Action:
- Inspect visible cables around the tube stand, wall stand, table, and operator console.
- Look for unplugged connectors, damaged insulation, pulled cable chains, pinched cables, or loose strain reliefs.
- Do not open covers or perform internal cable repair during basic troubleshooting.
Expected outcome: No obvious external cable damage or disconnection is found.
If damage is found, remove the system from service and escalate for repair.
10. Test Manual Movement Separately
Separate auto-positioning faults from basic motorized movement faults.
Action:
- Attempt safe manual movement of the affected component using normal controls.
- Test only one axis or component at a time, such as tube stand longitudinal movement.
- Test only one axis or component at a time, such as tube stand vertical movement.
- Test only one axis or component at a time, such as tube angulation.
- Test only one axis or component at a time, such as wall stand vertical movement.
- Test only one axis or component at a time, such as table movement, if related.
- Observe whether movement is smooth, delayed, noisy, jerky, or completely inhibited.
Expected outcome: Manual movement helps identify whether the issue is auto-positioning logic or a movement hardware/sensing problem.
If manual movement works but auto-positioning fails, document that distinction clearly.
11. Check for Collision or Alignment Warnings
Radiographic rooms use safety logic to prevent unsafe positioning.
Action:
- Review the system display for collision warnings, alignment prompts, tracking errors, or positioning messages.
- Check whether the tube, wall stand, table, or detector is too close to another component.
- Move the system to a neutral safe position if possible.
- Retry movement only after the warning clears.
Expected outcome: Collision protection clears once the system is safely repositioned.
If the warning remains with no obstruction present, escalate for service evaluation.
12. Perform a Limited Functional Check
After any correction, verify safe basic operation before returning the room to use.
Action:
- Confirm the affected component moves through a small safe range.
- Confirm braking and stopping behavior appears normal.
- Confirm auto-positioning works for a simple known exam position, if appropriate.
- Check that no warning or fault returns.
Expected outcome: Movement is smooth, predictable, and free of repeated faults.
If the system passes functional checks, return it to service and document the work order.
If the Problem Persists
If the Ysio Max continues to have auto-positioning, tube stand, wall stand, brake, collision, or movement faults after external checks, common user-accessible causes have been ruled out.
The device should be removed from service, labeled Out of Service, and sent for repair or Siemens-qualified bench/system evaluation.
Do not continue repeated movement attempts if there is abnormal motion, grinding, slipping, failure to brake, unexpected travel, or unresolved collision warnings.
Knowing when to stop is proper troubleshooting. A movement fault may involve internal sensors, encoders, motor drives, brakes, communication circuits, calibration, or mechanical components that require service-level repair.
Clinical Use Tip
Do not troubleshoot motorized movement faults with a patient in position. Move the patient to another radiographic room or alternate imaging system first. Troubleshoot only when the room is clear, the travel path is open, and staff are outside the motion area. Maintain therapy and imaging continuity by using a backup room or alternate imaging method when patient care is time-sensitive.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Radiology reported that the Siemens Ysio Max would not auto-position and the wall stand stopped during vertical movement."
Cause
What was observed during troubleshooting.
Example:
"Found the wall stand travel path partially blocked by a positioning step stool, causing the system to inhibit movement."
Resolution
What action was taken.
Example:
"Removed the obstruction, verified wall stand and tube stand movement, confirmed auto-positioning completed normally, and returned the room to service."
Helpful Details to Include (If Known)
- Alarm behavior or exact movement fault/message displayed
- Accessories swapped, detector reseated, or bucky reseated
- Power behavior, outlet or room power status, and whether system startup completed normally
- Environmental factors, obstructions removed, emergency stop status, travel path condition, or room setup concerns
- Indicator lights, brake or lock behavior, and whether manual movement worked
- Final device status, including whether the room was returned to service or removed from service
Final Thought
Movement faults on a radiographic system should be approached carefully and logically. Start with patient safety, then check obstructions, emergency stops, locks, positioning limits, detector seating, and visible connections before assuming an internal failure. If movement remains unreliable or unsafe, remove the room from service and escalate. Clear CCR documentation protects patients, staff, and the repair process.
That is successful troubleshooting.