5 switching the voltage supply on – SMA SC 500CP-US User Manual
Page 95
SMA America, LLC
16 Commissioning
Installation Manual
SCCP-US-IA-US_en-41
95
Procedure:
1. Check the external supply voltage for the right-hand rotating magnetic field. Correct if necessary.
2. Measure the AC voltage between the line conductors as well as between the line conductors and the neutral
conductor and record in the commissioning report.
16.5 Switching the Voltage Supply On
1. Switch the circuit breaker of the grid monitoring on.
2. Switching the voltage supply on:
• If the voltage is supplied externally, switch on the circuit
breaker of the external voltage supply in the inverter.
or
Voltages between the conductors
The voltages between the conductors specified in the table below must correspond to the values you have measured.
External auxiliary power supply voltage
208 V
400 V
480 V
A - B
208 V
400 V
480 V
A - C
208 V
400 V
480 V
B - C
208 V
400 V
480 V
A - N
‒
230 V
‒
B - N
‒
230 V
‒
C - N
‒
230 V
‒
A - PE
120 V
230 V
277 V
B - PE
120 V
230 V
277 V
C - PE
120 V
230 V
277 V