5 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Replacement Manual
DCCON-STPTL10-RM-xx-10
12
Position
Designation
B
String fuse assembly (ESF)
C
DC assembly (DC-CON)
5
Disconnecting the Inverter from Voltage Sources
Prior to performing any work on the inverter, always disconnect it from all voltage sources as
described in this section. Always adhere to the prescribed sequence.
WARNING
Danger to life due to electric shock from destruction of the measuring device
due to overvoltage
Overvoltage can damage a measuring device and result in voltage being present in the
enclosure of the measuring device. Touching the live enclosure of the measuring device results in
death or lethal injuries due to electric shock.
• Only use measuring devices with a DC input voltage range of 1000 V or higher.
Procedure:
1. Disconnect the circuit breaker from all three line conductors and secure against reconnection.
2. If an additional DC load-break switch is available, switch off the DC load-break switch and
secure against re-connection.
3. If the multifunction relay is used, switch off any supply voltage to the load.
4.
DANGER
Danger to life due to electric shock and electric arc when disconnecting
the ESS in the event of an error
If an acoustic signal sounds, the inverter is in error mode. In this case, the removal of the
ESS results in death or serious injury due to electric shock and electric arc.
• Test whether there is an acoustic signal.
• If an acoustic signals sounds and the display shows an error message that prohibits
removing the ESS, wait until dark. The ESS can only be removed once it is dark.
• If no acoustic signal sounds and the display does not show an error message, remove
the ESS.
5. Wait until the LEDs and the display have gone out.
6. Release all six screws of the lower enclosure lid
using an Allen key (AF 3).
ENGLISH
Summary of Contents for NR-STP-DC-CON-1012
Page 77: ...1 SMA Solar Technology AG DCCON STPTL10 RM xx 10 77 1 5 1 6 X703 1 X703 6 10...
Page 80: ...2 SMA Solar Technology AG DCCON STPTL10 RM xx 10 80 DC DC DC DC 5...
Page 82: ...2 SMA Solar Technology AG DCCON STPTL10 RM xx 10 82 5 C v v SMA SMA...
Page 88: ...5 SMA Solar Technology AG DCCON STPTL10 RM xx 10 88 DC DC DC PE...
Page 89: ...6 DC SMA Solar Technology AG DCCON STPTL10 RM xx 10 89 DC PE 20 v v 6 DC 1 5 84...
Page 90: ...6 DC SMA Solar Technology AG DCCON STPTL10 RM xx 10 90 2 4 DC 3 DC 3 8 4...
Page 91: ...6 DC SMA Solar Technology AG DCCON STPTL10 RM xx 10 91 5 ESS ESS ESS 6 TX20 7 4...
Page 92: ...6 DC SMA Solar Technology AG DCCON STPTL10 RM xx 10 92 8 9 10 DC 11 DC TX20...
Page 94: ...7 DC SMA Solar Technology AG DCCON STPTL10 RM xx 10 94 4 DC 5 DC 6 TX20 3 5 Nm 7 DC 8 DC 9...
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