User manual

11
741.011 | 12.18
EN
5.4 Terminal pin assignments
For each solar system that can be selected at the controller, the external components
(pumps, valves, temperature sensors) must be connected to particular terminals. The
following table provides information on this:
• Graphic and number of the solar system on the controller display. The graphic is only
intended to provide an overview and is not a technical drawing.
• Terminal pin assignments of the connected components
Display Legend Terminal layout
No system
Note
No System is used when only the functions are used. When No
system is selected then all inputs and outputs are freely available
for use by the functions. More information on this is provided in
Section 11, p. 25.
1 storage tank, 1 collector array
T1
T2
R1
T1: Collector array sensor
T2: Lower storage tank sensor
R1: Solar circuit pump
1,
2,
R1, N, PE (PWM R1,
1)
)
1 swimming pool, 1 collector array
R1
T1
T2
T1: Collector array sensor
T2: Swimming pool sensor
R1: Solar circuit pump
1,
2,
R1, N, PE (PWM R1,
1)
)
Tab. 1: Terminal pin assignments
1)
Terminal pin assignments for PWM-controlled high-efficiency pumps: The power supply must be
connected to output R1 (N, PE), the control cable for the pump electronics must be connected
to PWM R1 and .