Is it possible to use the LX Handset to disable the regenerative braking feature on a Clark forklift model ECG32, serial number starting with ECG358?
The reason I ask, in the course of trouble shooting the ECG32, I determined its logic card was in question. After trying everything, (and I mean EVERERYTHING) else, and putting it off as long as I could, I pulled a logic card from a different Clark that was working but mechanical issues. It is a model ECG20, also serial number beginning ECG358.
After doing that, the fault code -27 went away, to be replaced by fault code -72. Researching that -72 educated me about regenerative braking systems and looking closer I found that the ECG20 I borrowed the "working" logic card from has a contactor installed for the RB system, while the ECG32 I'm trying to get working does not. There's a big gaping empty spot where the RB contactor and related components (REC 7 ect.) would go.
So I'm thinking fine, but to prove that it really will work with a good logic card, (a necessary step when working with my company's parts department) can I disable that feature with the handset somehow?
But no, not so far. Working off page 19-05-3 of the manual for ECG20-32 Clarks, I've tried putting function codes U9, U10, U50, U54, U58, and U62 at zero, and at the minimum setting. Neither option changes anything, it still just returns the code -72. One thing I'm thinking about but haven't tried yet, is Function 22. It shows that as performance mode; and gives a setting of 184. Would setting that to zero change anything? Disabling High Performance Mode in it's entirety?
So in a nutshell, am I just totally barking up the wrong tree, and this feature is enabled when they build the card, and there's no turning it off?
Or can Regenerative Braking be turned off, but I just don't know how?
Sorry for the long-winded post, just wanted to include as many relevant details as possible.
As a p.s. If there is a way to bench test a logic card, that would solve my main problem. But everything I read about that says, "no not really," hence the
part-swapping, which I do hate.
Showing items 1 - 2 of 2 results.
*OP with another update*
Fault code -27 describes as "Logic Card power supply is less than 10 V dc."
Corrective actions:
*Skip to the end*
Defective Q1 power transistor
Measure for low resistance (<200 ohms) at PZ4 to neg.
That's one of the first things I checked. And when I found 800ish ohms, I took that to mean it was good to go, test passed, if it had been below 200 ohms, that would mean the Q1 is bad.
No. A working forklift I just ran the test on measured 15 ohms and beeped good continuity at me. So...I need to replace the GA600GD25SVA IGBT module, and that should fix my issue.
But I tell ya, I'd still like to know more about the pendant and how to change stuff. Also, I take issue with the wording in that manual. Leaves alot of room for doubt. We don't like doubt. No Doubt.
*OP with an update*
Just connected and tried the "Bad" Logic card in the ECG20 that I borrowed the good one from. And everything works! No codes, no issues.
So while the feature disabling question would still be interesting to learn about, I'm back to square one with the original fault code on the ECG32, a -27, which I suppose should be a different and separate post.
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