What is Philips CT error code ER38?

Rotor motor overspeed. It is reported by the Gantry Rotation Control (Stator Control Board) on Access Series CT (6/16/Dual) CT systems. Severity: Alarm — stator control board error condition; subsystem: Gantry Rotation Control.

What should a field engineer do about ER38?

Cross-reference System Error Code 0x5507 in the system log. Follow the Gantry Rotation Prepare Error flow chart (Section 2.4.5) and check the rotor motor servo speed feedback before replacing the servo/control board.. Isolate the Gantry Rotation Control subsystem and follow the status-code troubleshooting in the service manual. FSELIB documents the full diagnosis and remedy for the Access Series CT (6/16/Dual).

Alarm — stator control board error conditionGantry Rotation Control

ER38 — Rotor motor overspeed

Philips CT error code, reported by the Gantry Rotation Control (Stator Control Board).

What ER38 means

On Access Series CT (6/16/Dual) CT systems, status code ER38 indicates: Rotor motor overspeed. The code originates in the Gantry Rotation Control section of the Gantry Rotation Control (Stator Control Board). Severity level alarm (Alarm — stator control board error condition).

Reported action: Cross-reference System Error Code 0x5507 in the system log. Follow the Gantry Rotation Prepare Error flow chart (Section 2.4.5) and check the rotor motor servo speed feedback before replacing the servo/control board..

Listed in Table 1-3 'Stator Control Board Error Code vs System Error Code' of the Philips Access CT Service Trouble Shooting Guide (459800863401 Rev. C), for the Access Series CT (6/16/Dual) family. Not confirmed for other Philips CT systems.

Full troubleshooting for ER38

The complete diagnosis, cause tree, and step-by-step remedy for the Gantry Rotation Control subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.

Open the Activion16 service manual

Related Gantry Rotation Control codes

ER09Gantry rotor motor servo warning ER0ARotation pulse sampling abnormal ER0BContinuous gantry rotation time-out ER0CGantry stop-rotation time-out ER0DTorque voltage measurement/output tolerance exceeded N04Gantry rotate motor servo not ready N05Gantry rotate motor servo operating in torque mode N06Gantry rotate zero position not found

Discuss ER38 with other field engineers in the FSELIB forum

Source: Philips Access CT Service Trouble Shooting Guide — 459800863401 Rev. C. Reference information re-authored by FSELIB — not a copy of the OEM manual.