Page review information
Edition covered
Commissioning practice — drive/axis OEM documentation governs — n/a — practice-level sequence, no single governing document
Content status
Reviewed
Coverage
Staged servo-axis commissioning sequence at practice level; tuning values and safety-function checks are project-specific.
Last reviewed
August 2026
Primary reference
The official published standard — required for final decisions

Confirm the governing edition, jurisdiction, and project-specific requirements before applying anything on this page.

Workflows › Drive Systems

Servo Commissioning Workflow

Staged commissioning for a servo axis. Servo systems require tighter control over mechanical risk, feedback correctness, and tuning than a basic induction-motor drive.

Drive Systems Commissioning Servo
Do not skip the feedback verification step before enabling the axis. Commutation errors and feedback direction faults can cause immediate runaway — these must be resolved as blocking issues, not treated as tuning problems.

Step 1 — Confirm axis readiness

Before enabling the axis, confirm:

Item Check
Correct motor/drive pairing Motor model matches drive configuration
Axis mechanically safe to move Travel limits understood; no mechanical interference
Hard limits and stops confirmed Limit switches or software limits configured and tested
Safety-related functions understood E-stop, door interlock, and enable chain reviewed
Feedback device terminations complete Encoder or resolver cable seated and secured
Motor power cable complete Correct phasing; PE confirmed

Step 2 — Enter motor and feedback data

Confirm the drive is configured with:

Parameter Source
Motor model or rated data Motor nameplate or OEM motor file
Encoder or resolver type Feedback device documentation
Feedback resolution Counts per revolution or line count
Commutation or alignment method OEM startup guide

Configuration mismatch must be treated as a blocking issue. Do not proceed to enable with a configuration mismatch — do not attempt to tune through it.

Step 3 — Verify feedback before motion

With the drive powered and axis not enabled:

Check Expected result
Signal health Clean feedback; no error or noise indication
Direction sense Manual shaft rotation shows correct count direction
Reference or homing assumptions Home position method understood
Feedback loss warnings No persistent feedback loss alarms

Correct feedback direction before any motion. Incorrect direction causes immediate instability on enable.

Step 4 — Controlled enable and commutation check

Enable the axis only in a controlled state:

Step 5 — Stage the tuning work

Tune in this order. Do not skip levels:

1. Current / torque loop  →  stable and responsive
2. Velocity loop          →  smooth speed response
3. Position loop          →  accurate following

Jumping to aggressive position tuning before lower-level behavior is confirmed usually produces worse results and obscures the root issue.

Step 6 — Functional motion review

After basic tuning is complete:

Verify Expected result
Direction matches command Positive command produces positive motion
Overshoot and oscillation Within acceptable limits for the application
Following error Stays within expected limits at operating speed
Mechanical system No resonance or backlash revealed by tuned response

If mechanical issues appear (resonance, backlash, compliance), resolve them mechanically — do not attempt to compensate through tuning alone.

Module Topic
Servo Drive Fundamentals Servo architecture, feedback, and control loops
Motor Control Methods Control loop structure (current, velocity, position)
Motor Family Comparison Servo vs. induction vs. stepper selection
Workflow When to use
Motor Troubleshooting Decision Tree If servo instability or faults appear
VFD Commissioning Workflow For VFD-driven induction motors on the same machine
Motor Selection Workflow Review original selection basis
Trust Boundary — Engineering Judgment Required

This site is an independent educational reference for industrial automation standards. It paraphrases and organizes guidance in original language; it is not a substitute for the official published standards, professional engineering judgment, or legal review, and content has not been independently verified against current published editions.

Items marked Review pending await technical review against the identified edition. Items marked Planned have no reviewed source material behind them. Do not rely on this site for compliance determinations, safety-critical design decisions, or legal interpretation.