SMA STP 10000TL-10 Installation - Manual (Page 42)

6 Electrical Connection SMA Solar Technology AG
42 STP10-17TL-IA-en-32 Installation Manual
4. If more than two strings are to be connected, check
the first assembled DC connector to ensure correct
polarity and connect to input B of the inverter.
☑ The DC connector clicks audibly into place.
To release the DC connector 6.4.3.
5. After connecting the string, watch out for messages in the display and any acoustic signals.
Only continue if the following conditions are fulfilled:
– The green LED is glowing or flashing.
– There is NO acoustic signal after 30 seconds.
– NONE of the error messages 40, 64 or 82 are shown in the display.
Otherwise, follow the relevant instructions in the following table:
Event Measure
After 60 seconds, the
display is blank and the
Sunny Tripower is not
beeping although the DC
input voltage is over 188 V.
There is a fault in the Sunny Tripower.
• Ensure that the DC cables have not been reverse poled.
• Ensure that DC input voltage of over 188 V is present.
• Contact the SMA Service Line (see Section 16 "Contact",
page 111)
The Sunny Tripower starts
beeping.
The Sunny Tripower short-circuits the PV array.
• On no account disconnect the Electronic Solar Switch or
the DC connectors. Wait until the Sunny Tripower stops
beeping (after dark).
Pulling the DC connectors causes a risk of arcing, since the
Sunny Tripower short-circuits the PV array in order to
prevent reverse currents through individual strings.
Depending on the level of irradiation, this could trigger
high current flows. However, the PV array and the
Sunny Tripower are in a safe state.
• Before leaving the Sunny Tripower, install a contact
barrier (e.g., fence) and moisture protection
(e.g., tarpaulin).
• Wait until dark before pulling out the Electronic Solar
Switch and all DC connectors, and only then eliminate any
errors (reversed pole or defective string).