Operation and installation manual
Page 49 of 96
(PVI-STRINGCOMB (-S, -MC, -S-MC) - Rev:1.0)
9.3.8 +24VDC external power supply
PVI-STRINGCOMB(-S) is directly powered by the photovoltaic field, so it is not
usually operating at night.
PVI-STRINGCOMB can be kept active at night using an insulated external power
supply (24Vdc: Ref. §Appendix A: Technical Data).
In this way any antitheft, monitoring and serial communication functions will stay
active.
Figure 9-14: Terminals for ex24VDC supply connection
Table 9-7: Table of ex24VDC supply connection
24VEXT
24VEXT_RTN
7
7
C
A
B