Riello NexPro 300 Plus Solar MR 11 Instruction Manual page 17

Versions with solar controller
Refer to the figure below to make the relevant electrical connections.
ELECTRICAL CONNECTIONS
SOLAR CONTROLLER TERMINALS
PWM
Temp . Sensor Pt1000
VFD S1 S2 S3 S4
3 4 5 6 7 8 9 10
1 2
yellow/green
17
PUMP POWER CABLING
100 ... 240 V~
50-60 Hz
IP 20
N
R1
R1
1 (1) A 240 V~
18 19
1 (1) A 240 V~
R2
N R2
VBus
12 13 14 15
blue
PWM
CABLING
T2A
L
20
N
16 17
brown