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Old 04-15-2024, 03:54 PM   #1
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Default Looking for EJ4-4001 motor specs

I'm trying to tune my controller to my motor (EJ4-4001) and need some motor technical details like:

Maximum Armature Current Rating
Maximum Field Current Rating
Minimum Field Current Rating
Field Resistance (hot and cold)
Positive and Negative Field Maps

The motor is stock on a 2006 Precedent. I've heard it called D&D, ADC and something else.

Can anyone tell me where I can find this information?
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Old 04-15-2024, 04:31 PM   #2
scottyb
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Default Re: Looking for EJ4-4001 motor specs

This motor has been arounds for decades, I bet Alltrax could answer your questions.
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Old 04-16-2024, 07:32 AM   #3
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Default Re: Looking for EJ4-4001 motor specs

Who originally made this motor? Are they still in business? I see it described as ADC, AMD and D&D. D&D says they make a replacement.
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Old 04-16-2024, 07:57 AM   #4
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Default Re: Looking for EJ4-4001 motor specs

Advanced (ADC)

Sources:
Nice label from an early still made in USA motor:
https://www.buggiesgonewild.com/showthread.php?t=182476

Motors of that era, GE vs ADC:
https://buggiesgonewild.com/showthread.php?t=65257
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Old 04-16-2024, 08:04 AM   #5
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Default Re: Looking for EJ4-4001 motor specs

Now, who the hell is Advanced?

Advanced DC motors, ADC?

Then rebranded to Advanced Motor & Drives (AMD) ?

And of course owned/purchased by Nidec Drive Systems.
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Old 04-16-2024, 09:28 AM   #6
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Default Re: Looking for EJ4-4001 motor specs

That's what I was wondering. Chain of acquisitions. AMD is now a division of Nidec. I sent an email to Nidec to see if they can help. thx
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