Be242 Be242RB OEM's Manual V3.X.XX -
January - 2021 page 4
4
Section 1.0 Introduction
The Be242 integrates a 3-Phase Automatic Mains Failure controller and a Generating Set controller. The Be242
provides visual indication by means of LEDs and Displays for Engine & Electrical parameters, Alarms and Status
of the contactors. It provides a RS485 (MODBUS-RTU) interface for remote control & monitoring. You can read
the current of the load by connecting the CTs on load side. Figure 1 presents the panel layout. The Be242 is
connected to the Be242 Relay Board via 25 poles shielded cable.
Figure 1: Front Panel layout
Section 2.0: Selection of the Mode of operation
When you apply the DC supply, the display indicates for a second, the version of the software (example 1.0.01)
and the detected kind of battery (12V or 24V) Should the battery supply to be lower than 7,5V, the BE242 will
trigger the [ER.13] alarm code; the software will not run. The modes of operation are selected by pushbuttons
and indicated by means of green LED indicators as shown below:
Note: default programming for emergency input
is ‘normally closed ‘. To inhibit the alarm [Er.08]
you are required to connect terminal JH4 to JH1 (Emergency input). You can reverse the contact by
changing the type of the contact (see P35 on table 7.04).
TEST
AUTO
OFF
MAN
OFF
TEST
AUTO
Pushbutton
Pushbutton
Pushbutton
Pushbutton
MANUAL Mode
green LED
Operating Modes Pusbuttons
TEST Mode
green LED
AUTO Mode
green LED
Operating Modes
Alarm
messages
Display control
& indicators
Alarm
acknowledge
pushbutton
Mode
pushbuttons & LEDs
Contactors
Control
Manual Engine
Control
Engine
A
V
Hz / R.P.M.
h / Prog.
F1
F2
F3
F4
F5
F8
F9
F6
F7
F10