SMA SC 500CP-10-JP Maintenance Manual - Manual (Page 29)

SMA Solar Technology AG 6 Maintenance under Voltage-Free Conditions
Maintenance Manual SCCP-JP-WA-A4-en-12 29
6.7 Maintenance after Connecting the Control Voltage
6.7.1 Connecting the Control Voltage
Procedure:
1. Switch the inverter to Stop.
2. Open the doors of the interface cabinet.
3. Switch the circuit breaker of the grid monitoring on.
4. Connect additional external voltage.
5. Connect external voltage supply.
6. Connect the AC circuit breaker.
7. Connect DC voltage in main distribution box or sub-distribution box.
8. Make the external AC voltage connection of the medium-voltage transformer.
6.7.2 Checking the Fans
Requirement:
☐ Control voltage is connected(see Section 6.7.1, page 29)
:$51,1*
Danger to life from electric shock due to live voltage
High voltages are present in the conductive components of the inverter. Touching live components results in death or
serious injury due to electric shock.
• Wear suitable personal protective equipment for all work on the device.
• Do not touch any live components.
• Observe all warning messages on the product and in the documentation.
• Observe all safety precautions of the module manufacturer.
:$51,1*
Danger to life from electric shock due to live voltage
High voltages are present in the conductive components of the inverter. Touching live components results in death or
serious injury due to electric shock.
• Wear suitable personal protective equipment for all work on the device.
• Do not touch any live components.
• Observe all warning messages on the product and in the documentation.
• Observe all safety precautions of the module manufacturer.