¶ Issue Description
The AMS detects the state of the filament in the AMS filament hub unit through hall sensors. Reliable detection of the filament state is crucial for the AMS filament change function. Each slot of the AMS has a filament hall sensor at the entrance of the filament hub. If the connection between the filament hub hall sensor and the AMS mainboard is disconnected, this alarm will be triggered.
Principles of fault detection:
When the Hall sensor is normally connected, there is a reasonable voltage range. If the software detects that the voltage exceeds this range, it will indicate that the Hall sensor is offline. This function is implemented in hardware through a pull-up resistor. When the Hall sensor is offline, the voltage will be pulled up to 3.3V.
Symptoms:
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This error appears on the printer after the AMS is powered on.
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Filament loading or RFID reading fails. Each time the filament is fed into the tube, it times out after approximately 6 seconds and then retracts back to the AMS. Multiple retries fail.
¶ Troubleshooting
¶ Tools, Equipment and Materials
Hex screwdriver
¶ Fault Isolation Process
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Refer to the AMS 2 Pro disassembly video, first loosen the two screws fixing the AMS main frame, and lift the main frame.
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Check the Hall sensor FPC of the filament hub to see if it is detached or not inserted properly. Reconnect the filament hub Hall FPC.
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Check if the filament sensor is damaged, moldy, rusted, or has components detached.
If your AMS 2 Pro is still under warranty, please contact our after-sales support team for further assistance after attempting the above troubleshooting steps.
¶ Equivalent Codes
The following HMS codes represent the same type of issue.
| HMS Code | Description |
|---|---|
| 0700-2000-0002-0007 | AMS A Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0700-2100-0002-0007 | AMS A Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0700-2200-0002-0007 | AMS A Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0700-2300-0002-0007 | AMS A Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0701-2000-0002-0007 | AMS B Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0701-2100-0002-0007 | AMS B Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0701-2200-0002-0007 | AMS B Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0701-2300-0002-0007 | AMS B Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0702-2000-0002-0007 | AMS C Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0702-2100-0002-0007 | AMS C Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0702-2200-0002-0007 | AMS C Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0702-2300-0002-0007 | AMS C Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0703-2000-0002-0007 | AMS D Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0703-2100-0002-0007 | AMS D Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0703-2200-0002-0007 | AMS D Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0703-2300-0002-0007 | AMS D Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0704-2000-0002-0007 | AMS E Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0704-2100-0002-0007 | AMS E Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0704-2200-0002-0007 | AMS E Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0704-2300-0002-0007 | AMS E Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0705-2000-0002-0007 | AMS F Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0705-2100-0002-0007 | AMS F Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0705-2200-0002-0007 | AMS F Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0705-2300-0002-0007 | AMS F Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0706-2000-0002-0007 | AMS G Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0706-2100-0002-0007 | AMS G Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0706-2200-0002-0007 | AMS G Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0706-2300-0002-0007 | AMS G Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0707-2000-0002-0007 | AMS H Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0707-2100-0002-0007 | AMS H Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0707-2200-0002-0007 | AMS H Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 0707-2300-0002-0007 | AMS H Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1800-2000-0002-0007 | AMS-HT A Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1800-2100-0002-0007 | AMS-HT A Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1800-2200-0002-0007 | AMS-HT A Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1800-2300-0002-0007 | AMS-HT A Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1801-2000-0002-0007 | AMS-HT B Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1801-2100-0002-0007 | AMS-HT B Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1801-2200-0002-0007 | AMS-HT B Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1801-2300-0002-0007 | AMS-HT B Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1802-2000-0002-0007 | AMS-HT C Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1802-2100-0002-0007 | AMS-HT C Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1802-2200-0002-0007 | AMS-HT C Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1802-2300-0002-0007 | AMS-HT C Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1803-2000-0002-0007 | AMS-HT D Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1803-2100-0002-0007 | AMS-HT D Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1803-2200-0002-0007 | AMS-HT D Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1803-2300-0002-0007 | AMS-HT D Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1804-2000-0002-0007 | AMS-HT E Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1804-2100-0002-0007 | AMS-HT E Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1804-2200-0002-0007 | AMS-HT E Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1804-2300-0002-0007 | AMS-HT E Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1805-2000-0002-0007 | AMS-HT F Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1805-2100-0002-0007 | AMS-HT F Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1805-2200-0002-0007 | AMS-HT F Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1805-2300-0002-0007 | AMS-HT F Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1806-2000-0002-0007 | AMS-HT G Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1806-2100-0002-0007 | AMS-HT G Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1806-2200-0002-0007 | AMS-HT G Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1806-2300-0002-0007 | AMS-HT G Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1807-2000-0002-0007 | AMS-HT H Slot 1 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1807-2100-0002-0007 | AMS-HT H Slot 2 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1807-2200-0002-0007 | AMS-HT H Slot 3 feed-out Hall sensor is disconnected. The connector may have poor contact. |
| 1807-2300-0002-0007 | AMS-HT H Slot 4 feed-out Hall sensor is disconnected. The connector may have poor contact. |
¶ End Notes
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, will answer your questions and provide assistance.
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