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Anomaly Guide#15 Extractor Not in Rest Position |
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First determine which device triggered the anomaly by examining the anomaly message on the application's computer console (within the Metalprogetti B2K/BAM/MAP application).
For Uniform Conveyor Systems running B2K
The anomaly record will contain both the CONVEYOR number as well as a POINT description which indicates the faulting device (arm, gate, etc).
For Order Assembly Systems running MAP or Storage Systems running BAM
The device ID is made up of 4 digits - the first 2 indicate the conveyor ID, the second 2 indicate the device ID.
In the following examples, XX represents conveyor ID while the last 2 digits represent the device.
Main conveyor anomalies will always be XX-00,
extraction arm anomalies will always be XX-01 through XX-10 depending on how many arms are installed,
and feedrail anomalies will always be XX-11 as demonstrated below.
Extraction anomalies will show as XX-01 up to XX-10 |
Anomaly 15 Extractor Not in Rest Position 01-03 = conveyor #1, arm #3
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| Possible Causes | Checks to Perform |
| START: Determine how many sensors are involved | Examine the extraction piston to determine if there is just 1, or if there are 2 sensors installed on the actuating piston. If just 1 sensor, understand that in the following tests - the sensor LED should only light up when the extractor is in the rest position. This will require the sensor to be either near the bottom of the piston or near the top of the piston, depending on the direction the conveyor spins during extraction. If there are 2 sensors, understand that in the following tests - one sensor should light up when piston is fully extended, and the other sensor should light up when piston is fully retracted. |
| Extractor jammed in belt or on extraction ramp | Examine extractor in question and determine if the extractor is in the extract or rest position. If not in the rest position, determine if the clapet is mechanically bound with the extraction ramp or if lodged in the conveyor belt. If obstruction is found - free the jam and then push the yellow anomaly reset button on main panel. If extractor is already in the rest position, proceed with following checks. |
| Piston sensor out of position or defective | Actuate piston manually (either with manual test button on solenoid valve or with the air pressure off) and determine if the sensor's indicator LED lights up according to the defined pattern above. If sensor LED does not light up, touch magnet to face of sensor to determine if LED responds to the magnet. If LED on sensor does not light up when the magnet is present - replace sensor and test. If sensor lights up in response to a magnet but not when piston is in the corresponding position, sensor may need to be slightly repositioned using instructions below: 1) Verify piston is either fully extended or fully retracted 2) Slightly loosen the screw on the suspect sensor bracket 3) Slide the sensor 1mm to 2mm up or down until LED lights up Once sensor LED remains lit - secure screw and test. Actuate the piston manually several times to verify the sensor LEDs behave as described above. |
| Solenoid valve is failing or hesitating to shuttle | Reset anomaly and watch a live extraction to determine if clapet immediately returns to rest after it "fires". If anomaly 15 is triggered but clapet remained in the up position - replace solenoid valve and test. |
| Piston sensor signal not reaching PLC in main panel | Contact Metalprogetti Support department for further assistance. |