Installation Guide

Commissioning

900-0160-01-01 Rev B

Figure 34 AC Test Points

3. Turn on the inverter using the system display (or external switch, if one has been installed). The

Radian’s default condition is Off. Do not turn on any AC circuit breakers at this time.

4. Using a DVM, verify 120 Vac (or appropriate voltage) between the L1 and N

OUT terminals, and

between the L2 and N O

UT terminals. (See Figure 34 for AC test points.) The inverter is

working correctly if the AC output reads within 10% of 120 Vac or the programmed output

voltage.

5. Proceed past the items below to Step 6 on the next page.

To start a multiple-inverter (stacked) system:

1. Close the main DC circuit breakers (or connect the fuses) from the battery bank to the inverters.

Repeat for every inverter present. Confirm that the system display is operational.

With the system display, perform any programming for stacking and all other functions.

(See pages 40 and 46.) These functions may also include AC input modes, AC output voltage,

input current limits, battery charging, generator starting, and others. When stacking in parallel,

all slave inverters will observe the programming settings of the master inverter. They do not

need to be programmed individually. In a MATE3-class system display, the Profile Wizard may

be used to assist programming.

2. Turn on the master inverter using the system display (or external switch, if one was installed).

The Radian’s default condition is Off. Do not turn on any AC circuit breakers at this time.

3. Using the system display, temporarily bring each slave out of Silent mode by raising the Power

Save Level of the master. (See page 48.)



As each slave is activated, it will click and create an audible hum.



Confirm that the system display shows no fault messages. Confirm that the output voltages are still

correct. Individual inverter voltage readings are not necessary since all inverters are in parallel.

Metal pads are located at these spots.

In commissioning,

AC voltages can be measured at this

series of test points.