Product Manual

900-0161-01-01 Rev B 11
Operation
Inverter Functionality
The Radian inverter can be used for many applications. Some of the inverter’s operations occur
automatically. Others are conditional or must be enabled manually before they will operate.
Most of the inverter’s individual operations and functions can be programmed using the system
display. This allows customization or fine tuning of the inverter’s performance.
The Radian inverter has two sets of input connections, which are labeled
G
RID
and
G
EN
. Two
different AC sources can be connected during inverter installation.
Before operating the inverter:
The operator needs to define the application and decide which functions will be needed.
The Radian inverter is programmed with seven AC input modes. Each mode is optimized for a
particular application. Some modes contain functions unique to that mode.
The modes are described in detail following this section. To help decide which mode will be
used, the basic points of each mode are compared in Table 1 on page 19.
Apart from the input modes, Radian inverters possess a set of common functions or operations.
These operations are described in detail beginning on page 20. Most of these items operate the
same regardless of which input mode is selected. The exceptions are noted where appropriate.
NOTE:
The Radian’s battery charger uses the same programming and settable limits regardless of
which input is used. It does not have independent charger settings on each input.
Each distinct mode, function, or operation is accompanied by a symbol representing the inverter
and that operation:
The symbols may have other features depending on the operation.
Description of AC Input Modes
These modes control aspects of how the inverter interacts with AC input sources. Each mode is
intended to optimize the inverter for a particular application. The names of the modes are
Generator
,
Support
,
Grid Tied
,
UPS
,
Backup
,
Mini Grid
, and
GridZero
. The modes are
summarized and compared in Table 1. See page 19.
Both of the Radian’s inputs,
G
RID
and
G
EN
, can be programmed for separate modes.

The
G
RID
input can be set in the
Grid AC Input Mode and Limits
menu.

The
G
EN
input can be set in the
Gen AC Input Mode and Limits
menu.
AC
IN
AC
OUT
DC
TRANSFER
These items represent the input from the AC
source, the output to the AC loads, DC functions
(inverting, charging, etc.), and the transfer relay.
Arrows on each symbol represent power flow.