Validator: distro_supercap/supercap_esr_range
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This guide applies to EV3 aircraft only.
Background
Section titled “Background”Use this guide when a CRITICAL_WORKFLOW_ERROR report includes the distro_supercap/supercap_esr_range check. The guide identifies failures caused by outdated thresholds or low-voltage storage and routes readings outside the nominal range to Distro replacement.
Troubleshooting Steps
Section titled “Troubleshooting Steps”graph TD
load-the-failed-mission-in-the-supercap["<small><b>Step 1</b></small><br/>Telemetry: Load the failed mission into the Sup..."]
are-the-supercap-esr-values-below-0-2{"<small><b>Step 2</b></small><br/>Question: Are any Supercap ESR values below 0.2..."}
outdated-thresholds-low-esr-power-cycle["<small><b>Step 3</b></small><br/>Action: This is an example of a Supercap ESR ..."]
are-the-supercap-esr-values-above-0-7{"<small><b>Step 4</b></small><br/>Question: Are any Supercap ESR values greater t..."}
outdated-thresholds-high-esr-power-cycle["<small><b>Step 5</b></small><br/>Action: This is a Supercap ESR failure caused..."]
are-the-supercap-esr-values-within-cur{"<small><b>Step 6</b></small><br/>Question: Check the Supercap ESR values 3 minut..."}
replace-distro-supercap-stack["<small><b>Step 7</b></small><br/>Action: Replace Distro assembly on Aircraft u..."]
low-voltage-storage-false-flag-power-cycle["<small><b>Step 8</b></small><br/>Action: This is a false flag due to a trigger..."]
load-the-failed-mission-in-the-supercap --> are-the-supercap-esr-values-below-0-2
are-the-supercap-esr-values-below-0-2 -->|Yes| outdated-thresholds-low-esr-power-cycle
are-the-supercap-esr-values-below-0-2 -->|No| are-the-supercap-esr-values-above-0-7
are-the-supercap-esr-values-above-0-7 -->|Yes| outdated-thresholds-high-esr-power-cycle
are-the-supercap-esr-values-above-0-7 -->|No| are-the-supercap-esr-values-within-cur
are-the-supercap-esr-values-within-cur -->|Yes, the Supercap ESR value...| low-voltage-storage-false-flag-power-cycle
are-the-supercap-esr-values-within-cur -->|No, the Supercap ESR values...| replace-distro-supercap-stack
style are-the-supercap-esr-values-below-0-2 fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style outdated-thresholds-low-esr-power-cycle fill:#dcfce7,stroke:#22c55e,color:#14532d
style are-the-supercap-esr-values-above-0-7 fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style outdated-thresholds-high-esr-power-cycle fill:#dcfce7,stroke:#22c55e,color:#14532d
style are-the-supercap-esr-values-within-cur fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style replace-distro-supercap-stack fill:#dcfce7,stroke:#22c55e,color:#14532d
style low-voltage-storage-false-flag-power-cycle fill:#dcfce7,stroke:#22c55e,color:#14532d Hover or focus a block to preview it. Select the block to keep the preview open.
1 telemetry
Load the failed mission into the Supercap ESR Baraza template. Enter the mission ID; the template should load automatically.
Enter the mission identifier above to load the plot.
2 question
Are any Supercap ESR values below 0.2 but above 0.05?
3 action
This is an example of a Supercap ESR failure caused by outdated thresholds. Power cycle the Aircraft using Power Cycle Aircraft, then return it to service.
4 question
Are any Supercap ESR values greater than 0.74 and less than 0.90?
5 action
This is a Supercap ESR failure caused by outdated thresholds. The new maximum threshold is 0.90. Power cycle the Aircraft using Power Cycle Aircraft, then return it to service.
6 question
Check the Supercap ESR values 3 minutes after the
Note: it can be helpful to add padding (~6000+ seconds) to compare the results from previous missions as well.
supercap_esr state = STANDBY. Are the Supercap ESR values within a nominal range (0.05 - 0.90)?Note: it can be helpful to add padding (~6000+ seconds) to compare the results from previous missions as well.
7 action
Replace Distro assembly on Aircraft using Template 646 EV3: Replace Zip Distribution Board (ZDB) on Aircraft. Deliver removed ZDB to Logistics lead to be returned to Bolaji Bankole.
8 action
This is a false flag due to a trigger during low-voltage state. Power cycle the Aircraft using Power Cycle Aircraft, then return it to service.
Resolution note
This plaintext block is ready to paste into the Resolution Note field on the ZERP issue you're working. The permalink below gives engineering review access to the full step-by-step timeline including any back-navigation; share it if the case needs a deeper look.
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