Damage to the seal of the enclosure lid in sub-zero conditions
If you open the enclosure lid in sub-zero conditions, the sealing of the enclosure lid can be
damaged. This can lead to moisture entering the inverter.
• Do not open the inverter at ambient temperatures lower than -5°C.
• If a layer of ice has formed on the seal of the enclosure lid in sub-zero conditions, remove it
prior to opening the inverter (e.g. by melting the ice with warm air). Observe the applicable
safety regulations.
Damage to the display or the type label due to the use of cleaning agents
• If the inverter is dirty, clean the enclosure, the enclosure lid, the type label, the display and
the LEDs with a damp cloth and clear water only.
2.2
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.
Destruction of the measuring device due to overvoltage
• 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. Remove the ESS.
3. Loosen two screws of the protective cover using an Allen key (AF 5) and remove the protective
cover.
4. Use a current clamp to ensure that no current is present in the DC cables.
5. Release and remove all DC connectors. To do
this, insert a flat-blade screwdriver or an angled
screwdriver (blade width: 3.5 mm) into one of
the side slots and pull the DC connectors straight
out. Do not pull on the cable.
2 Safety
SMA Solar Technology AG
Service Manual for Installers
7
STP5-12TL-20-SG-en-13
Summary of Contents for SUNNY TRIPOWER 10000TL
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