As I wrote last week, I am selling off my old parts
that are just laying around in the garage. Before I
sell any of them, I need to be sure they still work.
In the past, I tested these EV-1's outside the car,
but I had trouble. Without a series wound motor
connected to it, it is difficult. Also, you can't
free spin a series wound motor, even if I had a spare
lying around. So, just connecting it to any old
series motor (unloaded) is a recipe for disaster.
What I did is just put a load between A1 and A2.
Then, I jumpered from T2 to A1. But, I think the
device is trying to read a voltage across T2 and A1 to
calculate how much current is flowing. With the
jumper, it is reading 0 volts = 0 current. It runs up
to about 20% duty cycle and then faults. Actually, it
starts pulsing the load at maybe 2 Hz. I believe that
is some type of fault condition.
I am testing with 36 V (3 x 12 V batteies). The load
I am using is a perm mag motor.
This is the exact same thing that happened last time I
tried to test outside the car. In the car it worked
fine then. I just want a way to test it outside the
car without having to uninstall / reinstall each of
them.
I'd appreciate any help. Thoughts on how to properly
bench test one of these.
Thanks,
Steve
____________________________________________________________________________________
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that are just laying around in the garage. Before I
sell any of them, I need to be sure they still work.
In the past, I tested these EV-1's outside the car,
but I had trouble. Without a series wound motor
connected to it, it is difficult. Also, you can't
free spin a series wound motor, even if I had a spare
lying around. So, just connecting it to any old
series motor (unloaded) is a recipe for disaster.
What I did is just put a load between A1 and A2.
Then, I jumpered from T2 to A1. But, I think the
device is trying to read a voltage across T2 and A1 to
calculate how much current is flowing. With the
jumper, it is reading 0 volts = 0 current. It runs up
to about 20% duty cycle and then faults. Actually, it
starts pulsing the load at maybe 2 Hz. I believe that
is some type of fault condition.
I am testing with 36 V (3 x 12 V batteies). The load
I am using is a perm mag motor.
This is the exact same thing that happened last time I
tried to test outside the car. In the car it worked
fine then. I just want a way to test it outside the
car without having to uninstall / reinstall each of
them.
I'd appreciate any help. Thoughts on how to properly
bench test one of these.
Thanks,
Steve
____________________________________________________________________________________
Be a better Heartthrob. Get better relationship answers from someone who knows. Yahoo! Answers - Check it out.
http://answers.yahoo.com/dir/?link=list&sid=396545433