Testing and Debugging the Jandy ePump

[mstieg]

I have a 2.7hp Jandy ePump connected to a new iAqualink RS4. Having done all the programming to set the pump make, pump umber, speeds and schedule. The pump starts up briefly after about 15 seconds and then quits. Some iAqualink status messages say offline, others say it is on at speed (whatever.)

How do you debug the epump? There have been forum references to jumping RS485 pins at the motor but I can't find any manual describing this. I would like to make sure the pump works before moving to the speed controller and the RS.

BTW, the ePump was purchased unused second-hand and my RS is totally new (very recent release.) All the equipment is in Baja Mexico (to further complicate things...haha.)

Any help is appreciated. Point me to other discussions if you feel they will help. THANKS in advance.

 

[MSchutzer]

Sounds like you have a problem with the physical connections of the RS-485 link. Maybe one of the RS-485 wire pairs (pins 2 and 3 on the connector) is not connected.

Did you hook up all four wires on the RS-485 interface? I think you also have to disconnect the RS-485 connection that goes to the motors integral controller. Looking at the manual I think the motor is controlled by the motor’s control panel, or the RS system. I don’t think both can be hooked up at the same time as you will have command conflicts on the RS-485 physical signals.

If you still have the motor’s control panel hooked into the 4 pin RS-485 connector on the motor try disconnecting it and only hook up the RS syst‘em and see if it works better?

 

[mstieg]

Sounds like you have a problem with the physical connections of the RS-485 link. Maybe one of the RS-485 wire pairs (pins 2 and 3 on the connector) is not connected.

Did you hook up all four wires on the RS-485 interface? I think you also have to disconnect the RS-485 connection that goes to the motors integral controller. Looking at the manual I think the motor is controlled by the motor’s control panel, or the RS system. I don’t think both can be hooked up at the same time as you will have command conflicts on the RS-485 physical signals.

If you still have the motor’s control panel hooked into the 4 pin RS-485 connector on the motor try disconnecting it and only hook up the RS syst‘em and see if it works better?

Thanks Mark! I will post results.