SMA STP 5000TL User Manual
Page 45
8.5 Setting the Tripping Threshold of the Residual-Current
Device
If a residual-current device with a tripping threshold of 30 mA is required and used, you must set
the parameter RCD adjustment to 30 mA (for further information, see the Technical Information "
Leading Leakage Currents" at The basic procedure for changing operating parameters is explained in another section (see
Section 8.4, page 44).
• Select the parameter RCD adjustment and set it to 30 mA.
8.6 Setting the Operating Mode of the Multifunction Relay
By default, the multifunction relay is set to activate a fault indicator when a fault occurs. If you use
the multifunction relay for a different purpose, you must change the operating mode and adjust
further settings for the operating mode, if necessary.
The basic procedure for changing operating parameters is explained in another section (see
Section 8.4, page 44).
Operating modes:
Operating mode of multi-
function relay
(Mlt.OpMode)
Description
Fault indication (FltInd)
The multifunction relay controls a display device which, depending
on the type of connection, signals either an error or the undisturbed
operation of the inverter.
Self-consumption (SelfCsmp) The multifunction relay switches loads on or off, depending on the
power supply status of the PV system.
Control via communication
(ComCtl)
The multifunction relay switches loads on and off according to com-
mands transmitted by a communication product.
Battery bank (BatCha)
The multifunction relay controls the charging of the batteries depend-
ing on the power situation of the PV system.
Fan control (FanCtl)
The multifunction relay controls an external fan, depending on the
temperature of the inverter.
Switching status grid relay
(GriSwCpy)
The local grid operator may require that a signal is transmitted as
soon as the inverter connects to the utility grid. The multifunction re-
lay simulates the switching status of the grid relay and transmits a
signal to the grid operator.
8 Configuration
SMA Solar Technology AG
Operating Manual
45
STP5-10TL-20-BE-en-13