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ISSUE — Track Amplifier D/A Overflow Error

CONFIRMED RESOLVED BOTH BOLT PRECISION TRACK

Summary

"Track — Amplifier D/A Overflow" error appears consistently around 3 seconds into any move or GoTo, regardless of track position or project. The error is caused by a loose or improperly seated cable or connector somewhere on the rig — most often the pinch wheel encoder cable. A systematic check and reseating of every cable and connector on the entire rig resolves it.

Symptoms

  • Error message: "Track — Amplifier D/A Overflow"
  • First appeared randomly during a GoTo; then became constant
  • Occurs in every project after approximately 3 seconds into any move or GoTo
  • Not position-specific
  • Disconnecting the pinch wheel does not resolve it
  • Random axis trips during otherwise clean repeat moves (separate symptom — same root cause)

Systems Affected

  • Bolt on Track (Indrek — confirmed)
  • Focus motor systems (Steve Schweiger, Felix Roth — related variant)
  • Likely applicable to all axis types

Software Environment

BOTH

Possible Causes

  • Loose or improperly seated cable or connector anywhere on the rig (most common)
  • Pinch wheel encoder cable not fully inserted
  • Loose board inside the CS8 controller
  • Oxidised or dirty connector contacts
  • Track pinch wheel encoder fault

Solutions

Solution A — Systematic check of every cable and connector on the rig

CONFIRMED BOTH

Contributor(s): ~ Indrek, ~ Steve Schweiger, ~ Felix Roth, ~ Niko — 2022-09-16

Steps

  1. Check and reseat the pinch wheel cable connector (most common cause).
  2. Methodically check every single cable and connector on the entire rig — including:
  3. Pinch wheel encoder cable
  4. EtherCAT / network cables
  5. Power cables inside the base unit
  6. Board connectors inside the CS8 controller
  7. After each check, test the GoTo.

Notes

"Went through every single cable and connector on the whole rig and this seems to have fixed it, for now." — Indrek (root cause not isolated; systematic check resolved it)

"I think I had once the same problem with a focus motor... the cable was not plugged in right." — Steve Schweiger

"We had this also a few weeks ago. The cable of the pinch wheel was not connected properly." — Felix Roth

Solution B — Diagnostic: detach pinch wheel, test without it

EXPERIMENTAL

Contributor(s): ~ Niko — 2022-09-16

Steps

  1. Physically detach the pinch wheel from the track rail (keep cables connected).
  2. Maintain a gap between the pinion and the centre rail.
  3. Run the same GoTo command.
  4. If error disappears → pinch wheel mechanism is the cause.
  5. If error persists → look at cables, boards, CS8 internals.

Notes

In Indrek's case, the error persisted without the pinch wheel, confirming it was elsewhere in the cable/connector chain.

Solution C — Check for loose board inside CS8 controller

LIKELY

Contributor(s): ~ Sebastian Opitz — 2022-09-16

Steps

  1. Open the CS8 controller enclosure.
  2. Check all internal boards are fully seated.
  3. Check connector security on the board handling the track axis interface.

Notes

"Could also be a loose board inside the CS8." — Sebastian Opitz

Less common than cable issues, but worth checking once all external cables are confirmed.

Timeline

Event Date Contributor
First reported 2022-09-16 ~ Indrek
Cable check resolved it 2022-09-16 ~ Indrek
Related focus motor report Various ~ Steve Schweiger, ~ Felix Roth

Official Documentation

Document Section Notes
Flair v7.4 Operator Manual Axis maintenance Cable inspection guidance

Flair Classic Manual — Ch.5 Setups: Axis Setup — p.33

Flair 7 Manual — Ch.5 Setups: Axis Setup — p.19

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Media Text / Description

  • Media 1: 2022-09-16 — ~ Indrek: video of Track - Amplifier D/A Overflow, Amplifier D/A Overflow, or D/A overflow appearing during GoTo after about 3 seconds. The thread was resolved by systematic cable/connector reseating; related search terms include pinch wheel cable and loose track amplifier connector. Source file: 00011927-VIDEO-2022-09-16-03-49-42.mp4.

WhatsApp Excerpts

[16/9/2022, 3:48:28 am] ~ Indrek: hi, getting a constant Track - Amplifier D/A overflow error, first appeared randomly during a goto. does not seem to be project or track position specific, it keeps popping up in every project after about 3 seconds into a move/goto.

[16/9/2022, 3:52:44 am] ~ Steve_Schweiger: I think i had once the same problem with a focus motor... the cable was not plugged in right... maybe a loose cable or plug?

[16/9/2022, 3:53:53 am] ~ Felix Roth: We had this also a few weeks ago. The cable of the pinch wheel was not connected properly

[16/9/2022, 4:23:39 am] ~ Indrek: tested so far - checked and cleaned pinch wheel connector; robot moving along track easily; disconnected pinch wheel and had a goto - still tripped the exact same way. then went through every single cable and connector on the whole rig and this seems to have fixed it, for now

Revision History

Date Change Editor
2026-05-24 Initial extraction Tom D / Claude Code
2026-05-24 Reformatted to CSS-tag template Tom D / Claude Code