How to connect your Jebao pump to your Reef Angel

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Joined: Sun May 25, 2014 5:09 pm
Location: Rio de Janeiro, Brasil
PostPosted: Tue Jul 01, 2014 9:44 am
A simple question came into my mind: reef angel PWM level is 10v. Is it possible to drive these pumps with 5v pwm level?
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Joined: Sun Apr 21, 2013 6:25 am
Location: Davie, FL
PostPosted: Tue Jul 01, 2014 9:57 am
I'm sure it is. It may require a mod to the cable.

Roberto can chime in on that.

Are you trying to slow the pump down, buy reducing the voltage to it?
Last edited by Sacohen on Thu Oct 02, 2014 7:27 pm, edited 1 time in total.
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Joined: Fri Jul 20, 2012 9:42 am
PostPosted: Tue Jul 01, 2014 10:23 am
Yes. You need a modified cable. The jaebo's are actually controlled by 0-5V Analog. There is a filter on the jaebo cable that converts it to analog and also drops the voltage down. At least this is my understanding...

Posts: 9
Joined: Sun May 25, 2014 5:09 pm
Location: Rio de Janeiro, Brasil
PostPosted: Thu Jul 03, 2014 2:10 pm
Oh, ok! I see there is a jumper at the cabe which enables a voltage divider working at 50%, so I just have to close the jumper to make PWM level work at 50%?

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Joined: Wed May 30, 2012 10:44 pm
PostPosted: Fri Jul 04, 2014 7:21 am
You have four inputs and three outputs. The inputs are 24 VCD, Ground DC (these both come from the power supply) and data 10 VDC and data ground. The data ground and power supply ground are joined on the board. The three outputs are data or control, 24 VDC and ground. Not sure where you're seeing a jumper. The data 10 VDC goes through a voltage divider to make it 5 VDC and a capacitor to smooth the PWM to analog.

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Joined: Sun May 25, 2014 5:09 pm
Location: Rio de Janeiro, Brasil
PostPosted: Fri Jul 04, 2014 3:44 pm
Fatman, you are perfectly right. I thought the JP1 connector from the schematic posted by Sacohen was a jumper. Too fast analysis by myself. Thank you for your explanation. It got perfectly clear. Thank you!!

Posts: 121
Joined: Wed May 30, 2012 10:44 pm
PostPosted: Tue Jul 08, 2014 7:16 pm
Jorge Ramalho wrote:Fatman, you are perfectly right. I thought the JP1 connector from the schematic posted by Sacohen was a jumper. Too fast analysis by myself. Thank you for your explanation. It got perfectly clear. Thank you!!

Not bad for a Fatman.:roll:
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