SMA SC 500CP-10-JP Maintenance Manual - Manual (Page 45)

SMA Solar Technology AG 7 Maintenance of Accessories
Maintenance Manual SCCP-JP-WA-A4-en-12 45
7.2.15 Checking the LEDs on the Measurement PCB
Figure 14: LED Error on the String-Monitor unit
Procedure:
2. If the red Error LED on the String-Monitor unit is glowing, contact the SMA Service Line.
7.3 Maintenance of the Sunny Main Box Cabinet
7.3.1 Disconnecting the Sunny Main Box Cabinet
Procedure:
1. If there are DC circuit breakers in the DC sub-distributors, e.g. Sunny String-Monitor, turn off all DC circuit breakers
of the DC sub-distributors connected to the Sunny Central (see installation manual of the DC sub-distributor).
2. If there are no DC circuit breakers in the DC sub-distributor, e.g. Sunny String-Monitor, remove all fuses in the DC
sub-distributors connected to the Sunny Central (see installation manual of the DC sub-distribution box).
3. If there are fuses in the Sunny Central, remove them (see the Sunny Central installation manual).
Position Designation
A LED Error
1. '$1*(5
Danger to life due to electric shock or electric arc by touching live components
• Disconnect the Sunny String-Monitor from voltage sources (see Section 7.2.1).
'$1*(5
Danger to life due to electric shock if live components of the Sunny Main Box Cabinet are touched
Touching live components results in death or serious injury.
• Observe the safety rules:
– Disconnect the device from voltage sources.
– Ensure that the device cannot be reconnected.
– Ensure that no voltage or current is present.
– Cover or isolate any adjacent live components.
• Only carry out maintenance work if the device is voltage-free.