Operation manual of solar controller SR658
Page 12 of 105
Connection with high efficiency pump
Connecting the signal wire from the high-efficiency pump
Signal wire 1 from the high-efficiency pump is connected to GND port of controller
Signal wire 2 from the high-efficiency pump is connected to PWM1 port of controller
Signal wire 3 from the high-efficiency pump is signal wire FB1, it is not connected to FB1 port
of controller
Some pumps connections are available as above, for example:
Wilo Yonos PARA ST15/7.0 PWM2 M
Grundfos UPM3 SOLAR 15-75 130 CZA
Note:
High-efficiency pump with 0-10V signal only has 2 signal wires, connected to the
corresponding port GND, PWM1 of controller.
Blue wire not always represent for
“GND” and brown wire not always represent for
“PWM”.
”PWM” from pump must be match for “PWM” from controller.
