SMA METER CONNECTION BOX - Manual (Page 14)

Electrical Connection SMA Solar Technology AG
14 METERBOX-IEN110611 Installation Guide
6 Electrical Connection
6.1 Device Overview
6.2 LED Overview
Item Description Meaning
A "RS485" Terminal for the RS485 communication bus
B "Power" Connection for the plug-in power supply
C "Ready" "Ready" LED for the power supply
D "Pulse" "Pulse" LED for transmitting measurement data using meter pulses
E "S0" S0 terminal
"Ready" LED (green)
Status
Meaning
Flashes Communication is now taking place via the RS485
communication bus.
Glows continuously Voltage is ok.
"Pulse" LED (yellow)
Status
Meaning
Flashes Normal operation
Meter pulses are being received from the energy meter.
Glows continuously Energy meter is not being read out
*
No meter pulses are being received from the energy meter.
Depending on the energy meter type connected (see page 23),
this means:
• no energy consumption
• no grid feed-in
• no PV yield