Installation Manual

Setup

Page 15

CTRL: 01 AC In Control

The 01 AC In Control menu has four different conditions in which the inverter/charger connects to

an incoming AC power source. Only one may be selected—multiple conditions can be set up and

enabled, but only one can be active at a time.

Info: The top status line of the alternates the inverter/charger status with a secondary

AC IN status when AC is present, but is not connecting as a result of a setting made in

the SETUP menu.

Example: AC is present, but Time Connect has been selected from the 01 AC In Control menu

and the current time of day is 6PM. The SETUP menu’s 02C AC In – Time current setting is 2AM-

8AM. The current time of 6PM is outside the connect time, so the inverter/charger will not connect

to the incoming AC until after 2AM. The primary status displays “Inverting” and the secondary

status displays “Time Connect” to let you know the reason that incoming AC has not connected.

• Auto Connect: Automatically connects to incoming AC power when the incoming AC is

qualiﬁ ed by the inverter/charger (voltage is below the high AC input requirements, above

the SETUP button’s 03B Low VAC Dropout setting, and between 50 Hz to 70 Hz for domestic

models; 40-60 Hz for export models).

Info: The Auto Connect setting must be selected if the incoming AC source is a

generator. There is no beneﬁ t from using the AC In feature if the AC source is from a

generator—the generator power may not be available if an AC In feature is activated.

Also, when the generator is turned on (autostarted or manually), it may be prevented

from connecting because the criteria to allow the AC input to connect (AC In is based

on time, VDC, or SOC) may not have been met.

Note: This is true unless using an inverter that has two independent AC inputs—one for

grid and the other for generator (i.e., MSH4024RE), because the AC In Control features

only work with the GRID IN (AC1) input.

• Time Connect: Incoming AC only connects when the time of day is between the Connect and

Disconnect time settings in the SETUP menu’s 02C AC In – Time menu item. See SETUP menu

02C on page 27 for a complete explanation of the Connect/Disconnect time menu settings.

• VDC Connect: Incoming AC only connects when the DC battery voltage falls below the

Connect volts setting in the SETUP menu’s 02D AC In – Volts DC menu item. Disconnects from

incoming AC when the DC battery voltage rises above the Disconnect volts setting, also from

the 02D AC In – Volts DC menu. See SETUP menu 02D on page 28 for a complete explanation

of the Connect/Disconnect volts menu settings.

• SOC Connect: Incoming AC only connects when the battery bank SOC falls below the Connect

setting in the SETUP menu’s 02E AC In – SOC menu item. Disconnects from incoming AC

when the battery bank SOC rises above the Disconnect setting, also from the 02E AC In –

SOC menu. This feature requires the optional ME-BMK (battery monitor) to be installed. See

SETUP menu 02E on page 28 for a complete explanation of the Connect SOC menu settings.

Info: If SOC Connect is selected and the incoming AC connects, the router issues

a one-time “ Start Bulk” command to the inverter/charger. This ensures the charger

enters the Bulk/Absorb charge cycle regardless of battery voltage.

• AC In – Disabled: Disconnects incoming AC when selected. This setting prevents the incoming

AC from connecting to the inverter/charger.