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Topic starter
17/04/2018 8:02 am
hey guys! having an issue with a tac32 hydro . losing inctm and inham on port 17. i get an 1154 , 1021, and 1684. i see the io's flash in flight or at idle or even while doors are moving. the 1021 is invalid inspection because i lose the io and 1154 is cartop inpection node A loss and 1684 is about run. i checked tge mta connectors and can is 60 ohms. my question is ..... cwil board? the car also does not get a door open command on independent at the bottom floor which i find very strange. i have all the latest software. cwil or cpua?
17/04/2018 9:21 am
I’d go with the CWIL, there’s something wrong with the A processor. If you watch the stat LED you might catch the flash rate change.
Topic starter
17/04/2018 9:44 am
Thanks dirt! Ill try that first
17/04/2018 9:56 am
And you have v20 firmware in the CWIL?
Topic starter
17/04/2018 10:54 am
cw ver 20
sel v27
hnb v25
and the new ver6 generic.
sel v27
hnb v25
and the new ver6 generic.
I was wondering where the can termination is on the cwil? its on on the cpua then off going into the repeaters, on going out of the repeater then idk where it would terminate....
18/04/2018 8:03 am
There is no jumper, the 120 ohm termination is built into the board.
18/04/2018 8:13 am
I wonder if the same faults show up if you power down cwil momentarily, I think it is fed from power supply mounted in COP.
Topic starter
19/04/2018 8:04 am
Replaced the cwil.... same crap. 1154 is car top inspection node a i believe and then 1021 invalid inspection. I dont know what to do, this car has to go back in service on monday. FML. Had the car on in car inspection all day and still get these faults. Checked all wiring in the cop . Is it possible bad connection in the car top inspection station?
Last edited by Whadafack; 04/19/18 12:04 AM.
Topic starter
19/04/2018 8:06 am
Maybe like you say tc7..... ac ripple ? But why only that port
19/04/2018 9:06 am
Do they go on and off together or independently? My first thought was a power supply or a connection but there is no common connection, they each get P24 from their own plugs. And I have a hard time believing the 24v to the CWIL is dropping and only causing those faults and those 2 inputs dropping. Maybe something is grounding P24IO. Does it coincide with anything like the car lantern? Put a meter on one of the inputs to see if it really is dropping, if it is I’d see if maybe P24IO is too.
19/04/2018 10:13 am
Maybe its all ports in car drop off line but you notice the inspect i/o because they are the only active ones at the time so you notice them change state. If you are truly loosing can communication to the car I believe that your door operator would log a com loss to controller, 2064 fault on door operator. I would approach this by trying to recreate the issue, pull p24 feed to cwil and see what faults it logs for example.
19/04/2018 10:30 am
I think If you drop 24v to the CWIL you’ll trip the safety processor and the normal processor and get a string of 2700 and 2800 faults. But maybe if it happens fast enough?
Topic starter
19/04/2018 11:03 am
They only drop in the grey/white io area not the blue. Also i have 2 gal operators.... they are wired with a different board lm4? Or lhv4 i cant remember. Ill try to unplug those mta connections quickly just to see if i can replicate the fault. Thanks guys
19/04/2018 11:07 am
Did u ohm the inspection switch on auto position
20/04/2018 1:47 am
Sometimes GAL operators are powered with 220 vac of I remember right. Off of fuse block DPWR1 & 2. Is it possible that this is the case and we are inducing noise in a bad spot? I/O signals are probably still 120 vac but the drive unit in MOVFR might be higher voltage.
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