02-08-2009, 09:32 AM
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| | | Join Date: Dec 2003 Location: Durham,nc
Posts: 38
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Hey all, I have an Acramatic control that still has Alarm 40-33
APC fault Output/Fuse Rack0.This is on CMHD card 3-542-1210A. Have done all the reseating of cards checking power.All of my inputs work great can see them via Programware test. I have 24VDC(25.2) on pins 1&2 J2 plus 13&14 and 37&38. Pin 39 in not pulled to ground! O voltage pin 4. Which I understand is one of the pins the control seeks for this error. Since that pin is not enabled until I clear the alarm (coolant), I force the pin in programware. I do not have 24vdc on this pin when the I/O reports pin on. Is there a fuse on this board? Like a polyswitch. I see one chip between J1 & J2 thats blue 5mmX8mm SMD that has no markings that could be a fuse, 5M ohms.
Any thoughts? Also there seems to be 2 shorted caps by the LEDS which I will take out of circuit and check further. I hate that so many of the components are either upside down or have had their markings removed.
Thanks, David
Last edited by dmerrll; 02-08-2009 at 09:44 AM.
Reason: spelling
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