Wiring a windshield wiper motor

roger glen carter's picture

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Joined: Nov 18, 2020

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Wiring a windshield wiper motor
November 18, 2020 - 1:57am

Hi everyone.  I'm trying to build myself a simple remote fish feeder using a wingshield wiper motor. The motor has 4 wires: blue (slow speed), yellow (fast speed), pink (I think it brings the motor to home position) and a black wire (either for negative or I don't know what). I have two 12V - 8Amp transprmers.  I'm trying to wire the motor so that when I remotely cut the power to one of the power supplies, the motor will return to home position.  So far it will only do it if I connect the blue and pink wire but I can't use that as a solution.  Can anyone help me?

Sourav Gupta's picture

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Joined: Feb 12, 2018

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What is the partnumber of motor? Do you have Datasheet? Have you tested the motor with Blue and Pink wire connected with a battery (Without a driver)?

roger glen carter's picture

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Hi, Sourav, thank you for responding to my post. The motor is a Mitsuba 76505-tk4-a01. I tested the wires with the 12v power supplies, thats how I know which are the slow and fast speeds. I also know that if I connect the blue and pink wires together on a single positive feed, the motor returns to its home position.  I also tried giving the pink wire a separate positive feed to see if it would return to home when I cut power to the blue but that didn't work.  The challenge I have is that I'm trying to find a way to operate the motor remotely using a smart plug and my phone.  I was hoping to be able to run the motor by turning the smart plug on and stop it by turning the smart plug off but I need some way to ensure that it will return to its home position.  I thought I could do it by providing  a separate power supply to the pink wire but obviously I know very little about the intenal workings of this motor.  Is there a way through my problem that is cost effective?

Please forgive me if the problem seems basic but I'm very new to electronics and I have no formal training.

roger glen carter's picture

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Joined: Nov 18, 2020

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Hi, Sourav, thank you for responding to my post. The motor is a Mitsuba 76505-tk4-a01. I tested the wires with the 12v power supplies, thats how I know which are the slow and fast speeds. I also know that if I connect the blue and pink wires together on a single positive feed, the motor returns to its home position.  I also tried giving the pink wire a separate positive feed to see if it would return to home when I cut power to the blue but that didn't work.  The challenge I have is that I'm trying to find a way to operate the motor remotely using a smart plug and my phone.  I was hoping to be able to run the motor by turning the smart plug on and stop it by turning the smart plug off but I need some way to ensure that it will return to its home position.  I thought I could do it by providing  a separate power supply to the pink wire but obviously I know very little about the intenal workings of this motor.  Is there a way through my problem that is cost effective?

Please forgive me if the problem seems basic but I'm very new to electronics and I have no formal training.

Sourav Gupta's picture

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Joined: Feb 12, 2018

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may be a way to use a backup circuit with battery that will get charged from the smart plug or the AC source and when the AC if off it will check the motor position and return it to the home and then stop.

Olivia Williams's picture

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Joined: Feb 27, 2020

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If we apply power directly to the red wire the motor will start spinning slowly. This is the slow speed setting and as long as power is applied the motor keeps turning.

Olivia Williams's picture

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Joined: Feb 27, 2020

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If we apply power directly to the red wire the motor will start spinning slowly. This is the slow speed setting and as long as power is applied the motor keeps turning.