SMA Solar Technology AG Commissioning
Installation Guide SMC9-11TLRP-IEN100640 55
6 Commissioning
1. Check the following requirements before commissioning:
– The inverter is firmly fastened.
– Correct connection of the AC cable (grid)
– Full connection of the DC cables (PV strings)
– Unnecessary DC inputs are closed with the corresponding DC plug connectors and blank
plugs
– The enclosure lid is securely screwed in place
– Electronic Solar Switch is securely plugged
– The line circuit breaker is laid out correctly
2. Switch on the line circuit breaker.
☑ The green LED is glowing or blinking if there is
enough radiation: commissioning has been
successful.
or
☑ The red or yellow LED is glowing or blinking:
there is an error. Proceed to step 3.
3. Read section 9”Troubleshooting” (page66) and if necessary eliminate the fault or disturbance.
A Green LED In operation
B Red LED
Ground fault, varistor defective
or string fuse defective
C Yellow LED Fault
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