Wiper Motor Park

Discussion and support for MoTeC Power Distribution Modules

Wiper Motor Park

Postby Turby on Tue Jul 07, 2020 6:10 am

Hi All,

I have one of the older PDM30's which doesn't have the extra wiper functionality on Output 9, I can get it to park (ish) but the position varies by up to 5 cm as the motor spins down. Is there any possible way to emulate the motor brake functionality of the newer PDM's with an add on relay, diodes or other components or circuity?

Many thanks
Turby
 
Posts: 36
Joined: Wed Dec 31, 2008 9:59 pm

Re: Wiper Motor Park

Postby greenamex2 on Tue Jul 07, 2020 5:42 pm

Pages 7 & 8 of the PDM manual have examples using a relay
Motec CDL3+M130+LTCD+MDD+PDM15+PDM16M
Nissan VQ30DE fitted to an AM Sportscars EX2 with a Hewland HP 2000
greenamex2
 
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Location: England

Re: Wiper Motor Park

Postby Turby on Tue Jul 07, 2020 10:00 pm

Thanks for the info, should have looked myself! :?

So having read that the pin outs for my wiper motor and change over micro relay are shown below,
wiper1.png
Wiper 1
wiper1.png (69.05 KiB) Viewed 2459 times


And when applied to the relay method as show in the PDM manual, I come up with the following shown below
wiper2.png
Wiper 2
wiper2.png (40.9 KiB) Viewed 2459 times


Does that look correct? Seeing as my wiper only has four connections I assuming the wiper motor is also grounded through its body to the chassis.

I'm also assuming the PDM output to relay pin 1 is always on, and the wiper is controlled by output to relay pin 4 (always on for fast / slow wipe and flashed for intermittent wipe) ?

Cheers
Toby
Turby
 
Posts: 36
Joined: Wed Dec 31, 2008 9:59 pm


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