Adjust the gantry servo-amplifier offset
Verify, and if needed correct, the speed-command offset of the Activion16 gantry rotation section's servo amplifier (servo pack). The task has three parts, done in order: Preparation (§3.7.5.1) powers up the servo unit with covers open so you can reach it; Offset verification (§3.7.5.2) checks whether the current offset is acceptable; and, only if verification shows it is not, Speed command offset
Tools & parts
| Item | Part number | Qty |
|---|---|---|
| Breaker CP1 | n/a in source | 1 |
| Servo amplifier breaker CP320 | n/a in source | 1 |
| Side cover (servo-unit side, left front of gantry) | n/a in source | 1 |
| Servo unit metal cover | n/a in source | 1 |
| Rotation enable switch SW320 | n/a in source | 1 |
| KGTSM PWB DSW10 (DIP switch) | n/a in source | 1 |
| Brake release switch SW326 | n/a in source | 1 |
| Servo pack MODE/SET key | n/a in source | 1 |
| Servo pack UP/DOWN keys | n/a in source | 1 |
| Servo pack DATA key | n/a in source | 1 |
| User constant Fn009 | n/a in source | — |
Safety
Hazard: Releasing the rotation brake (SW326 to the upper position) and turning breaker CP320 back ON during offset verification (§3.7.5.2, step 3), while the front cover, side cover, and servo unit metal cover are open for this procedure
Consequence: The gantry rotation section may rotate accidentally, risking injury to anyone near the open rotation section
Avoidance: Be extremely careful during this step — keep hands, tools, and bystanders clear of the rotation section whenever CP1 and CP320 are both ON with the covers open (safety library G-W04 pattern: use the cover switch, CP320, and rotation lock pins to control inadvertent rotation)
Full step-by-step for Adjust the gantry servo-amplifier offset
All 23 steps are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with the real figures from the source.
Open the full procedureRelated Gantry guides
Source: 2D201-112EN*D §3.7.5 (pp.262-264) — Adjustment of the gantry servo-amplifier offset (§3.7.5.1 Preparation; §3.7.5.2 Offset verification; §3.7.5.3 Speed command offset adjustment). Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.