Switching On The Sunny String-Monitor - SMA SUNNY STRING-MONITOR Technical Description

6 Commissioning
6.2 Switching On the Sunny String-Monitor
Risk of lethal electric shock.
• Work on the Sunny String-Monitor may only be performed after switching off the power to the
unit in accordance with the regulations applicable to the installation site.
– Disconnect
– Ensure that the device cannot be reconnected
– Ensure that no voltage or current is present
– Cover or isolate adjacent live elements
1. Remove the plexiglass covers.
2. Insert the string fuses.
3. Replace the plexiglass covers.
4. Activate the DC circuit breaker.
☑ After the inverter has been commissioned, on the control circuit board LEDs 1 and 2 glow green
and LED 3 glows orange periodically.
Anti-theft protection, overvoltage protector are intact, data cable and control circuit board
are OK.
✖ After the inverter has been commissioned, does LED 1 or 2 not light up, is LED 3 off for more
than 5 minutes, does LED 4 light up red?
• see section 9 "Troubleshooting", page 59
38 SSM-TEN103132
SMA Solar Technology AG
Technical Description