Alpha Technologies AMPS80 HP - Manual (Page 54)

Doc. #: 026-069-B0 Rev F 52
a. Select Main Menu > Inverters > Group Mapping.
b. Turn the inverter modules OFF by clicking the green power icon at the end of the row. The green
power icons turn black in a few seconds.
c. Match AC Input Groups to AC Output Groups by configuring the modules to the groups as shown in
Figure 33.
22. DO NOT TURN THE INVERTERS BACK ON. PROCEED WITH THE NEXT STEP.
23. Select Inverters -> Set Output to set the number of inverters in each phase of your system. Match the AC
input phase to the corresponding AC output phase.
a. Number of Modules: Enter the total number of inverter modules that will be installed for that phase.
b. Redundancy: Enter the number of inverter modules that will provide redundant power for that phase.
This information is used to provide system warnings.
c. Phase Shift : Enter the phase shift for output group in your system configuration
1 2 3
Split phase (120/240 V)
° 0 180 N/A
2-pole (120/208) °
0 120 N/A
3-phase (120/208 V) °
0 120 240
d. Nominal Output Voltage : Enter 120 for all phases.
e. Press Submit .
CAUTION!
The value entered in the Nominal Output Voltage field can change the actual AC output voltage of the
inverters. Setting this value to anything other than 120 V will render the UL/CSA approval invalid.
24. Check for alarms ( Inverters > View Live Status ): alarm code (41) PHASE NOT READY indicates that the
phase rotation of the AC Input is not correct. (The inverters will not start until the phase and rotation are
correct.)
If necessary, return to Inverters -> Set Output and correct the phases as shown:
Unit 1 Unit 2 Unit 3
2-pole (120/208 V) °
0 240 N/A
3-phase (120/208 V) °
0 240 120
Validating the inverter configuration
For a split phase 120/240V system,
click on heading button 2
For a 3-phase 120/208V system,
click on heading button 3
Figure 33 —
Matching AC Input Groups to AC Output Groups