Differences

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--- access_control [2024-02-24 19:39] – [Device Issues] tim
+++ access_control [2024-04-20 17:45] (current) – [Bugs and Maintenance Tasks] tim
@@ Line 15: / Line 15: @@
     * good protection from transients
     * cheap enough that we can afford them
+  * bought [[https://uk.rs-online.com/web/p/switching-power-supplies/1358910|Mean Well IRM-03-5]], hasn't helped
+  * Class X suppression capacitors appear to fix the issue on Emco lathe and Juki sewing machine
 Unreliable network connections:
@@ Line 22: / Line 24: @@
   * we should replace power supplies and/or deploy ESP32 devices
-Tool controller PCBs: new tool controller PCBs are available and need to be assembled. There are 2 fully assembled and another 3 with SMD components only.
+Tool controller PCBs: new tool controller PCBs are available and need to be assembled. There is one fully assembled and another three with SMD components only. Two more D1 Minis are required.
 Documentation:
@@ Line 39: / Line 41: @@
   * "Fatal exception:28 flag:2 (Exception) epc1:0x40225c96 ...". Device self-restarts. Believed to be triggered by Android phone random UIDs and fixed by [[https://github.com/timhawes/doorman-firmware/commit/46de7662b49ff04febd6c7d3c30d9c74e032d167|46de766]].
-Migrate firmware config files to proper "/" prefix.
+<del>Migrate firmware config files to proper "/" prefix.</del>
-Purchase more PN532 NFC modules from elechouse.com and few of the new PN7150 for development. [ordered, in transit]
+<del>Purchase more PN532 NFC modules from elechouse.com and few of the new PN7150 for development. [ordered, in transit]</del>
 ===== Device Issues =====
@@ Line 52: / Line 53: @@
   * unable to crash the controller when powered from an isolated battery pack
   * approx 300W
+  * 2024-03-15: suppression capacitor fitted, appears to work
+  * 2024-04-09: bypass removed
 Welder:
-  * poor connectivity, repeated reconnects
+  * poor connectivity, repeated reconnects - fixed by channel change?
   * crashes when welder is in use
   * LCD sometimes shows corruption when welder is in use
+  * 2024-04-13: suppression capacitor fitted to contactor, prevents crashing at power-off
 Bandsaw:
-  * poor connectivity, repeated reconnects
+  * poor connectivity, repeated reconnects - fixed by channel change?
 Mitre saw:
   * poor connectivity, repeated reconnects
   * replacing the controller didn't help
+  * 2024-03-21: replaced PSU with Mean Well, has not helped
+  * 2024-03-24: firmware update failed repeatedly over 4 hours, device moved to G1 and it succeeded immediately, moved back to g8 and connectivity went bad again.
+  * 2024-03-28: changing channel (11->6) on unifi-g8 has helped
 Big laser cutter:
-  * crashes when main contactor is de-energised
+  * sometimes crashes when main contactor is de-energised, unable to recreate issue on demand
+  * is it the contactor itself or one of the devices fed from it?
+  * 2024-03-17: added ceramic 0.1uF and electrolytic 470uF 16V to 5V input of tool controller
+  * 2024-03-21: added 0.1uF to contactor coil terminals
 Sander:
   * suspected crashes from motor on-off
+  * was able to crash just from the contactor on-off
+  * contactor has 0.1uF connected to output terminals
+  * 2024-03-20: contactor 0.1uF moved to coil terminals, 0.47uF added about 6" from motor, appears to work
 Sewing machine:
   * suspected crashes from motor on-off
   * approx 800-900W
+  * 2024-03-15: suppression capacitor fitted, appears to work
+CNC router:
+  * corrupted LCD
+  * microcontroller crash and monitor blanks when contactor switches off
+    * 2024-04-16: added capacitor to contactor coil
 ===== Future Projects =====