5. Commissioning
5. Commissioning
.37.
.36.
Verify AC configuration.
5.1.4 AC configuration
Measure VAC and verify voltage is within local grid standards.
1. Measure each phase to ground (L-G).
5.1.4.1 Measure VAC and frequency
2. Measure phases to the other phases in pairs (L-L). PH A to PH B, PH B to PH C and
PH C to PH A.
3. If the meter is equipped, measure the frequency of each phase to phase.
4. Ensure each measurement is within local grid standards and the inverter specifications
as noted in Section 9 “Specifications”.
5.1.4.2 Phase rotation test
Close the Canadian Solar inverter wiring box inverter.
Place the cover on the inverter wiring box. Apply pressure to the cover while inserting
the screws.
Tighten the screws in a cross pattern to the appropriate torque setting. See Figure 9.1.
5.1.5 AC Secure inverter wiring box
Screwdriver
Figure 5.1 Bottom side of inverter
A phase rotation test is recommended to ensure the phases have been connected in the
appropriate order. Canadian Solar
inverters do not
rely on specific phase rotation connections.
However, the local utility may
require a specific phase rotation or a record of the phase
configuration of the installation.
5.2 Selecting the appropriate grid standard
WARNING
Failure to set the correct grid standard could result in improper operation
of the inverter, inverter damage or the inverter to not operate at all.
5.3 Changing the grid standard
5.3.1 Procedure to set the grid standard
NOTE
This operation is for service technicians only. The inverter is customized
according to the local standard before shipping. There should be no
requirement to set the standard.
NOTE
The “User-Def” function can only be used by the service engineer and
changing the protection level must be allowed by the local utlilty.
1. From the main screen on the display, select ENTER. There are 4 submenu options,
use the UP/DOWN arrows to highlight ADVANCED SETTINGS. Press enter to select.
Menu
2015-02-23 19 35
Information
Settings
Advanced Info.
Advanced Set.
Figure 5.2
5.2.1 Verifying grid standard for country of installation
Canadian Solar inverters are used worldwide and feature preset standards for operating on any
grid. Although the grid standard is set at the factory, it is essential the grid standard be verified
for the country of installation before commissioning.
The menu for changing the grid standard or for creating a custom standard is accessible as
described in Section 6.7 and below.
