Robotics in Manufacturing

Mastering & calibration

Quick Mastering a FANUC Robot

Quick mastering restores mastering using a previously set quick master reference point. You jog the robot to that stored reference position and then run Quick Master from Master/Cal. It is a common remedy for SRVO-034 when a valid quick master reference already exists.

Basic~20 min7 steps
  1. Step 1.

    Confirm a quick master reference exists

    Check that a quick master reference point was previously set for this robot. Quick mastering uses that stored reference, not scribed zero marks.

    Caution: If no valid reference was ever set, quick mastering cannot be used. Choose another mastering method.

  2. Step 2.

    Select jog and reduce speed

    Put the pendant in T1 and lower the jog override. Slow motion helps you settle the robot onto the reference position.

    Caution: Stay clear of the work envelope and be ready to release the enabling device.

  3. Step 3.

    Jog to the quick master reference position

    Jog the robot to the quick master reference pose that was defined when the reference was set. Match the reference position as closely as the setup allows.

    Caution: Do not rely on factory-scribed zero marks for this step. That is zero-position mastering, not quick mastering.

  4. Step 4.

    Open Quick Master

    Go to System, Master/Cal and select Quick Master. This uses the stored reference to recover the mastering data.

  5. Step 5.

    Execute and confirm

    Start Quick Master and answer the confirmation prompt to apply. The controller updates mastering from the reference position.

  6. Step 6.

    Calibrate and power-cycle

    Run Calibrate from Master/Cal, then power-cycle the controller. This puts the recovered mastering into effect.

  7. Step 7.

    Verify recovery

    Confirm the SRVO-034 or related alarm has cleared and current position readouts look correct. Jog to a known point at low speed to check.

    Caution: If positions are off, the reference may be stale. Re-master with a fixture jig instead.

Common questions

How long does Quick Mastering a FANUC Robot take?
Quick Mastering a FANUC Robot is rated Basic and takes about 20 minutes across 7 steps.
What tools do I need?
You will need Teach pendant.
What should I do before starting?
A quick master reference point was set earlier and is still valid.. Robot power on and the teach pendant enabled in T1.. Access to System, Master/Cal on the teach pendant.. No mechanical changes since the reference was set that would shift the reference pose..
What is the first step?
Confirm a quick master reference exists. Check that a quick master reference point was previously set for this robot. Quick mastering uses that stored reference, not scribed zero marks.

Attribution

Procedure steps on this page are checked against the site's editorial safety rules and manufacturer-manual sourcing standards.

Last reviewed: 2026-07-21.

Edited by Mike Ramsey / Reliable Media.Editorial process