What is Philips CT error code ER20?

Slip ring send/receive signal short circuit. It is reported by the Slip Ring Communication on Access Series CT (6/16/Dual) CT systems. Severity: Alarm — stator control board error condition; subsystem: Slip Ring Communication.

What should a field engineer do about ER20?

Cross-reference System Error Code 0x5711 in the system log. Inspect the slip ring transmitter/receiver signal wiring for a short before replacing the affected module.. Isolate the Slip Ring Communication 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 conditionSlip Ring Communication

ER20 — Slip ring send/receive signal short circuit

Philips CT error code, reported by the Slip Ring Communication.

What ER20 means

On Access Series CT (6/16/Dual) CT systems, status code ER20 indicates: Slip ring send/receive signal short circuit. The code originates in the Slip Ring Communication section of the Slip Ring Communication. Severity level alarm (Alarm — stator control board error condition).

Reported action: Cross-reference System Error Code 0x5711 in the system log. Inspect the slip ring transmitter/receiver signal wiring for a short before replacing the affected module..

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 ER20

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

Open the Activion16 service manual

Related Slip Ring Communication codes

ER1FSlip ring link error ER21Stator Control Board failed to send slip ring combination command ER22Stator Control Board failed to send slip ring ComOK command ER23Stator Control Board failed to send 800us status frame ER24GPC failed to send slip ring control command ER25Slip ring R-stop signal available (per source table wording)10052Application error on the Eleva Workspot when the operating-software DVD is not removed E061ABeam1 X signal path error

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