BERNINI DESIGN BE126 User manual

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 1
1
BE126 Diesel Fire Pump Controller
The information in this document may be subject to change without notice. No part of this document may be copied or
reproduced in any form or by any means without the prior written consent of Bernini Design Company. Bernini Design
assumes no responsibility for any errors which may appear in this instruction manual or in the wiring diagrams. Although
Bernini Design has taken all possible steps to ensure that the User Manual is completely, error free and up-to-date, we
accept that errors may occur. Any future updates will be included in our official website www.bernini-design.com. If you
encounter problems with this instruction manual, please contact us.
Customer Support BERNINI DESIGN SRL ITALY
e-mail: [e-mail] mobile: ++40 721 241 361. Tel:++39 335 7077148.
Warranty
Bernini Design SRL (hereinafter BD) warrants that Be124 shall be free from defect in material or workmanship
for a period of 3 years from the BD delivery date. BD shall, at its discretion, repair or replace the product without
charge. BD shall return the Be124 to the buyer with the Default parameters at no extra charge. The buyer shall
furnish sufficient information on any alleged defects in the product, so as to enable BD to determine there cause
and existence. If the Be124 is not defective, or the product is defective for reason other than covered by this
warranty, the buyer will be charged accordingly. This warranty shall not apply if the Be124 has not been used in
accordance with the User Manual and other operating instructions, particularly if any defects are caused by
misuse, improper repair attempts, negligence in use or incorrect handling. Then the purchase is non-refundable.
This equipment complies with the EMC protection requirements
!! WARNING !!
High voltage is present inside the Be124. To avoid any electric-shock hazard, operating personnel must not remove the
protective cover. Do not disconnect the grounding connection. The Be124 can start the engine at anytime. Do not work on
equipment, which is controlled by the Be124. When servicing the engine, disconnect the battery and battery charger. We
recommend that warning signs be placed on equipment indicating the above.
!! WARNING !!
!!! WARNING !!! MAINS VOLTAGE OR POWER UTILITY VOLTAGE MAY BE EXPOSED WITHIN THE
BE124 AND ANCILLARY CIRCUITRY EVEN WHEN THE LED INDICATORS, PLACED ON THE FRONT
PANEL, ARE TOTALLY TURNED OFF.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 2
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Alphabetical Index
Alarms............................................36.0
Alarm Monitoring..........................7.0
Alarm (Horn)..................................40.1
Alarms bypass (Timer).................13.0.6
Auto mode of operation ...............2.30
Auto push-button..........................2.30
Automatic Periodic Test...............8.0
Auxiliary Temperature..................20.0
Auxiliary Temperature Input ........40.3.3
Battery (engine) Alarms ...............13.0.7
Battery chargers...........................3.7
Belt break .....................................13.0.5
Be126 Status Page .......................3.0
Buttons (push-buttons) ...............1.0
Can bus Error...............................36.0.1
Characteristics..............................38.0
Charger Alt./Failure (belt break) ..36.0.4
Clock setting, error.......................5.0 / 36.0.1
Clear the memory .........................24.0
Connectors, Plugs........................40.0
Connections of the Be126............40.0
Configurable outputs ...................21.0
Coolant Alarms.............................18.0 / 30.0.6
Coolant temperature.....................18.0
Conventional Engine Type...........12.0
Current (battery) measurement... 3.7
Crank timing..................................11.4.1
Crank termination.........................13.0.1
Data Logger...................................32.0
Defaults (factory settings)............23.0
Dimensions ...................................42.0
Display........................................... 3.0
Display & Languages ................... 27.0
Display Settings............................ 27.0
D Plus Monitoring ........................37.0
Dynamo (Alternator) monitoring 37.0
Engine (Be126) Status Page ........3.0
Engine Running............................37.0
Engine Alarms Bypass.................13.0.6
Engine Metering............................3.1
Engine Type ..................................12.0
Engine Parameters.......................13.0
Engine Temperature.....................18.0
Event history.................................7.0
Events (clear)................................25.0
Fail to Start /Stop..........................36.0.4
Front Panel (front fascia).............1.0
Frequency ....................................22.0.3
Fuel Level & Alarms.....................16.0 / 36.0.7
Fuel Level Sensor.........................16.0
Fuel Parameters ...........................16.0
General Specifications................. 38.0
Glow Plugs (Pre-glow) .................13.0.4
Hour Counter (Hour Run) ............3.4
Horn ..............................................40.1
High /Low Battery.........................13.0.7
High /Low Fuel..............................16.0.2
High /Low Coolant Temperature. 18.0.1
Idle time ........................................14.0.3
Idle speed .....................................14.0.4
Instrumentation............................3.1
Language selection .....................27.0
Lamp Test (Self-Check) ...............2.4.6
LED Indicators..............................1.0
Low Battery voltage ..................... 13.0.7
Low Fuel........................................16.0.2
Main Menu.....................................4.0
Maximum Run Time timeout........21.0.2
Measurements.............................. 3.1
Miscellaneous............................... 21.0
Maintenance Timers.....................15.0
Memory Error...............................36.0.1
Memory (clear).............................. 24
MAN (manual mode).....................2.2
Modes of Operation...................... 2.0
Modify Parameters.......................33.1

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 3
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OEM Password .............................11.0/33.0
OFF mode of operation ...............2.1
Oil pressure indication.................3.1
Oil pressure setting......................17.0
Oil alarms ......................................36.0.8
Oil sensor......................................17.0
Outputs (programmable)..............21.0.3/ 21.0.2
Outputs drain................................40.0
Over Speed....................................14.0.2
Over / Under Frequency...............22.0.3
Over / Under Voltage ....................22.0.2
Parameter error.............................36.0.1
Parameters reading ......................34
Password(s) ..................................10.0/11.0/33.0
Periodic test (Scheduler)..............8.0
Phase Mode...................................22.0
Phase Sequence / Rotation).........22.0
Pickup (Speed error) ....................36.0.4
Pickup ratio (Teeth count)............14.0
Program, Programming................33.0
Pre Glow........................................13.0.4
Pressure sensor............................19.0
Power supply ................................40.3.2
Push-buttons.................................1.0
Rest time........................................13.0.2
Reading Parameters.....................34.0
Real Time Clock............................5.0
Remote Engine Start ....................43.0
Reset & Clear ................................24.0
Restore Defaults...........................23.0
Run Timeout..................................21.0.2
RS485 node...................................9.0
Reserve (Fuel)...............................16.0
Service 1-2-3.................................15.0
Settings (Parameters)..................33.0
Scheduler......................................8.0
Speed error...................................14.0
Speed settings.............................. 14.0
Speed indication...........................3.1
Sensors Fuel /°C/Oil ....................40.3.3
Sensors test ................................. 31.0
Service & Maintenance ................ 15.0
Sequence Error (Rotation)...........22.0
Single Phase operation................22.0
Specifications...............................38
Speed Parameters........................14.0
Software Version / updates .........39
Start (MAN mode).........................2.2
Start Attempts...............................13.0.2
Starting Failure.............................36.0.4
Stop solenoid................................13.0.5
Stop solenoid Timeout.................13.0.5
Switches (test of the)...................29.0
Tank Empty...................................16.0
Temperature Sensor ....................18.0
Teeth count (Pickup ratio)...........14.0.3
Temperature AUX.alarms ............20.0
Temperature Coolant alarms.......18.0
Test, Remote Test ........................43.0
Test (periodic) Test Failure .........8.0
Test Scheduler..............................8.0
Test mode of operation................2.4
Terminal description....................40.0
Three Phase Mode........................22.0
Troubleshooting...........................28--31
Under Voltage...............................22.0
Under Frequency..........................22.0
Under Speed ................................14.0
User password .............................10.0/33.0
Voltage measurements................3.2
Voltage (battery)...........................3.7
Water pressure alarms.................19.0.2 /36.0.1
Wiring diagram (application).......41.0
Warnings (alarms)........................36.0

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 4
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BE126 DIESEL FIRE PUMP CONTROLLER - Table of Contents
1.0
INTRODUCTION TO BE126.........................................................................
Page 7
2.0
SELECTING AN OPERATIONAL MODE.....................................................
Page 8
2.1
OFF MODE OF OPERATION DESCRIPTION.............................................
Page 8
2.2
MANUAL MODE OF OPERATION (STARTING THE ENGINE)..................
Page 8
2.2.X
MANUAL MODE NFPA 20 / UNI-EN 12845 & EPM.....................................
Page 8
2.3
AUTO MODE OF OPERATION (DESCRIPTION) .....................................
Page 9
2.4
TEST MODE OF OPERATION (DESCRIPTION).........................................
.
Page 10
2.4.X
UNI EN 12845 / NFPA / EPM MANUAL TEST FACILITIES.........................
Page 10
3.0
LED INDICATORS & DISPLAYS DESCRIPTION........................................
Page 11
3.1
BE126 STATUS PAGE & INSTRUMENTS...................................................
Page 11
4.0
BE126 MAIN MENU & FUNCTIONS............................................................
Page 14
5.0
SET DATE & TIME (REAL TIME CLOCK)....................................................
Page 15
6.0
VIEW ALARMS (ALARM MONITORING).....................................................
Page 15
7.0
EVENT HISTORY (LOG EVENTS)..............................................................
Page 15
8.0
TEST SCHEDULER (WEEKLY TEST).........................................................
Page 16
9.0
DATA COMMUNICATION (MOD-BUS NODE)............................................
Page 16
10.0
USER PASSWORD (USER PARAMETERS)...............................................
Page 16
11.0
OEM PASSWORD (OEM PARAMETERS)..................................................
Page 17
12.0
ENGINE TYPE SELECTION........................................................................
Page 17

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 5
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13.0
ENGINE PARAMETERS AND OPTIONS.....................................................
Page 13
14.0
ROTATIONAL SPEED SETTINGS...............................................................
Page 19
15.0
MAINTENANCE & SERVICE SCHEDULER................................................
Page 19
16.0
TANK FUEL LEVEL ALARMS & SETTINGS................................................
Page 20
17.0
OIL PRESSURE ALARMS & SETTINGS.....................................................
Page 21
18.0
ENGINE TEMPERATURE ALARMS & SETTINGS......................................
Page 22
19.0
WATER PRESSURE TRANSMITTER SETTINGS.......................................
Page 23
20.0
AUXILIARY TEMPERATURE ALARMS & SETTINGS.................................
Page 24
21.0
MISCELLANEOUS FUNCTIONS & SETTINGS...........................................
Page 25
22.0
MAINS PARAMETERS PROGRAMMING....................................................
Page 26
23.0
RESTORING FACTORY SETTINGS...........................................................
Page 26
24.0
CLEARING THE MEMORY..........................................................................
Page 27
25.0
CLEARING THE EVENT LOG......................................................................
Page 27
26.0
CLEAR THE NUMBER OF START..............................................................
Page 27
27.0
DISPLAY & LANGUAGE............................................................................
Page 28
28.0
PUSH-BUTTONS TEST (TROUBLESHOTTING).......................................
Page 28
29.0
SWITCHES TEST (TROUBLESHOTTING)..................................................
Page 28
30.0
OUTPUTS TEST (TROUBLESHOTTING)....................................................
Page 29
31.0
SENSORS TEST (TROUBLESHOTTING)...................................................
Page 29
32.0
WATER PRESSURE DATA LOGGER.........................................................
Page 30

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 6
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32.1
DOWNLOADING LOGGER DATA...............................................................
Page 31
33.0
PROGRAMMING PARAMETERS, SETTINGS & OPTIONS........................
Page 32
33.1
PROGRAMMING INSTRUCTIONS..............................................................
Page 33
34.0
READING PARAMETERS, SETTINGS & OPTIONS...................................
Page 33
35.0
RECOVERING A LOST PASSWORD..........................................................
Page 34
36.0
ALARMS WARNINGS & SHUTDOWNS......................................................
Page 34
37.0
DETECTING ENGINE RUNNING.................................................................
Page 37
38.0
GENERAL SPECIFICATIONS......................................................................
Page 38
39.0
SOFTWARE UPGRADES & REVISIONS....................................................
Page 38
40.0
TERMINAL DESCRIPTION..........................................................................
Page 39
41.0
TYPICAL WIRING DIAGRAM.......................................................................
Page 43
42.0
REAR VIEW AND DIMENSIONS.................................................................
Page 44
!! WARNING !!
The Be126 can start the engine at anytime. Do not work on equipment, which is controlled by the Be126. When servicing the engine,
disconnect the battery and battery charger. We recommend that warning signs be placed on equipment indicating the above.
MAINS OR POWER UTILITY VOLTAGE MAY BE EXPOSED WITHIN THE BE126 AND ANCILLARY CIRCUITRY
EVEN WHEN ALL INDICATORS, PLACED ON THE FRONT, PANEL ARE TRUNED OFF.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 7
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Section 1.0 - INTRODUCTION
The Be126 fire pump controller is designed to control and monitor 12 or 24 volt, diesel fire pump engine used in NFPA 20 or
UNI-EN 12845 compliant firefighting application. It features state-of-art multiprocessor structure providing embedded water
pressure data logger capable of storing up to 31 days of data. Be126 interfaces with standard or SAE J1939 compatible
diesel engines. The Be126 monitors, displays and records engine information as well. The Be126 automatically starts the
diesel engine from water pressure control or non-automatically from manual electric control. It initiates a weekly program test
of the system and records analog water pressure measurements. The Be126 features RS232 and RS485 serial interfaces.
The Be126 displays voltage and current of the batteries when you connect MCB MOD-BUS compatible battery chargers. The
Be126 monitors the power utility as well. You can use the Be126 controller in standard diesel engine pump water station by
enabling the ‘Engine Protection Mode’. In this case the engine shuts down in case of critical alarms.
Section 1.1 - FRONT FASCIA DESCRIPTION
1
A-METER CHARGER #2
10
LOW OIL PRESSURE
19
[OFF] PUSH BUTTON
2
V-METER CHARGER #2
11
OVER SPEED ALARM
20
[MANUAL] PUSH BUTTON
3
A-METER CHARGER #1
12
LOW FUEL ALARM
21
LOW WATER PRESSURE
4
V-METER CHARGER #1
13
EMERGENY ALARM
22
[START 2] PUSH BUTTON
5
64X128 GRAPHIC DISPLAY
14
DISPLAY ARROWS
23
[START 1] PUSH BUTTON
6
BATT. CHARGERS ALARMS
15
[MENU] BUTTON
24
ENGINE RUNNING INDICATOR
7
BATTERY VOLTAGE ALARMS
16
DISPLAY ARROWS
25
PILOT SOLENOIDS
8
ENGINE TEMPERATURE
17
[AUTO] BUTTON
26
[HOME] PUSH BUTTON
9
FAIL TO START ALARM
18
PUMP TEST BUTTON
27
[LAMP TEST] PUSH BUTTON
LAMP
TEST HOME START
1 START 2 OFF
V
BT1
BT2
V
APUMP
RUN
START1
START 2
LPS
TEMPERATURE
A
AUTO
MENU
MAN
TEST
F1
F2 F3
F4
27 26 23
24 22 20 19
1
2
3
4
5
6 7 8 9 10 11 12 13
16
18
15
21
17
25
14

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 8
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Section 2.0 - SELECTING AN OPERATIONAL MODE
The mode of operation is selected via the [OFF], [MAN] ,and [AUTO] push buttons. When you remove and re-
apply the DC supply, the controller enters automatically the OFF mode of operation except when the Be126 was
in AUTO mode of operation before shutting down the battery supply.
2.1 - OFF mode of operation: description
Push the [OFF] button to enter the OFF mode of operation. You clear all alarms and reset the system. In OFF
mode of operation you are allowed to program the controller (see 33.1). You can always display the
programmed parameters & settings. To open the main menu, push the [MENU] button. You can browse the list of
the sub-menus by using the [ ↑ ] or [ ↓ ] push buttons (see 4.0).
2.2 - MANUAL mode of operation: starting the engine
Push the [MAN] button. The display will indicate the message [MANUAL].Push the [START 1] button if you want
to start the engine using the BATTERY SET 1. Push the [START 2] button if you want to use the BATTERY SET
2. Push and hold the button until engine starts. The display will indicate the message [RUNNING] and the green
LED ‘RUN’ will turn on. You can program a [CRANK DELAY] and [PREGLOW] prior activating the starter motor. The
Be126 terminates the crank according to your settings (see 13.0.3 & 37.0). In NFPA/EN applications, the Be126
ignores the [PREGLOW] setting. Push the [ ↓ ] button to open the engine instruments page. In case the battery
voltage drops below 6 volts, the Be126 may reset the software. The controller will restart in OFF mode of
operation.
2.2.1 Note for NFPA or EN12845
In case of fire, the start push buttons are not inhibited (or start is not terminated) by the ‘Engine Running Status’
(see section 37.0). When ‘Engine Protection’ mode is selected (in other words, not in NFPA/EN mode), the
Be126 terminates the crank, in manual mode, according to your settings. The crank termination parameters,
included in the [ENGINE PARAMETERS] menu (see 13.0.3), are [CRANK VDC] & [CRANK RPM].
NOTE: before programming the [CRANK RPM] you are required to set up the teeth-count [PICKUP/W RATIO] (see 14.0.3)
If the engine stops for an unknown reason, the Be126 will trigger the alarm [UNEXPECTED STOP WARNING].
2.2.2 NFPA/EN12845
From the MANUAL mode of operation you can enter the AUTO mode of operation by pushing the [AUTO] button
at any time. The AUTO mode will automatically control of the entire system.
2.2.3 Engine Protection Mode(*)
From the MANUAL mode of operation you can enter the AUTO mode of operation by pushing the [AUTO] button
only if there is no active shutdown or alarm. To enter the AUTO mode, you are required to clear the alarm(s).
(*)The ‘Engine Protection Mode’ is active when you connect to battery minus the input JF-10. In this way you let
the Be126 stop the engine in case of alarms (supposing you correctly programmed the alarm parameters).

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 9
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2.2.4-MANUAL mode of operation: stopping the engine
To stop the engine you have to push the [OFF] button. The Be126 removes the power to the ‘Fuel Solenoid’
(output JC-8). In case you use an energized to stop solenoid, the Be126 activates the output JC-4 according to
[STOP SOLENOID] timing (see the [ENGINE PARAMETERS] sub-menu in section 13.0.5). When you push the [OFF]
button, you enter the OFF mode of operation as well. The Be126 clears all alarms and reset the system.
An optional way to stop the engine is to enter the AUTO mode of operation. If there is no fire alarm (all sources
of start have been returned to normal) the Be126 will shut down the engine after the [STOP DELAY] timing (see
section 21.0.1). Please note that factory programming for [STOP DELAY] is OFF (the engine will not stop
automatically). In NFPA application you can not program a time lower that 30 minutes.
2.3 AUTO mode of operation: description
Push the [AUTO] push-button until the yellow AUTO indicator illuminates (you can connect a lamp to JB-4
output); the display will evidence the message [AUTO]. The engine starts when the Be126 detects one of the
following condition:
- the water pressure switch is open (digital input JF-4)
- the water level switch is open (digital input JF-7)
- the water pressure drops below the [START DEMAND] setting (see 19.01 & Input JM-1)
The yellow indicator >LPS<blinks when the Be126 detects a drop of pressure. The display will switch the
message [START DEMAND OFF] to [START DEMAND ON].The Be126 will initiate the start sequence after a [START
DELAY] bypass time (see the [MISCELLANEOUS] menu 21.0.1). Depending on your settings, the engine will run at
idle speed or it will run immediately at nominal speed.
When the engine is running, use the display arrows to browse the instruments. If you get lost during navigation,
push the [HOME] button: the display will open the ‘System Status Page’. Based on your settings (NFPA-
EN12845 or Engine Protection Mode), the Be126 may stop the engine in AUTO mode of operation when the
pressure returns normal. You can stop the engine by pushing the [OFF] button.
We remind you that in case you programmed the controller to work according to NFPA 20 specifications, only an
OVERSPEED (see 14.0.2) condition can shut down the engine. All the others alarms provide only a warning .
The Be126 will periodically test the engine if the scheduler is correctly programmed. During the test, the display
will indicate the message [TEST SCHEDULER] (see 8.0). The engine will stop based on your settings. The [EVENT
HISTORY] register records in real-time all sequences. You can browse the event log at any time (see section 7.0).
When the Be126 is in AUTO mode of operation, you can carry out a test of the automatic system by pushing the
[PUMP TEST] button. The Be126 will activate the drain to initiate a test. The sequences are very well described in
the ‘TEST mode’section (see 2.4).
To find out more about AUTO mode of operation, consult the chapter 12 of the NFPA 20 Standard and sections 10.9.7---.13
of the EN 12845 Standard.
When you connect the input JF-10 to battery minus, the Be126 will activate the ‘Engine Protection Mode’
software. If you enable a shutdown (Oil pressure, Temperature, Fuel and so on), the engine will stop
accordingly. Automatic START & STOP of the engine are driven by the status of the water pressure or water
level. You can program different delays and options to start & stop the diesel engine. The [MISCELLANEOUS]
menu (section 21.0) contains the basic settings. The ‘Engine Protection Mode’ will allow you to use Be126 to
control and protect diesel engine in water pump station or irrigation systems.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 10
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2.4 TEST mode of operation description !!! WARNING: ENGINE MAY START IMMEDIATELY !!!!
Be126 offers several ways of testing. It depends on the application: NPFA 20, EN12845 or ‘Engine Protection
Mode’. Follow the instructions.
2.4.1 UNI EN 12845 MANUAL TEST FACILITY
Every time you stop the engine after an automatic start, or after an automatic start shutdown, you are required to
manually verify the circuits of the automatic start. You are required to wire an external push button to terminal
JF-6 (Pump Manual Test Switch) and to connect a lamp to terminal JC-4 (Manual Start Lamp).
When the condition to make the test comes true, the Be126 turns on the lamp 'OPERATE MANUAL START TEST
BUTTON IF LAMP IS LIT'. After carrying out the test, the Be126 turns off the lamp.
2.4.2 UNI EN 12845 RESTARTING TEST UTILITY (Weekly Test)
When the Be126 is in AUTO mode of operation, you have to periodically test the automatic system. Follow the
instructions:
•- Push the [PUMP TEST] button.
•- The display indicates the message [TEST START].
•- The Be126 initiates the test by activating the DRAIN VALVE (output JB-5).
•- The Be126 will start the engine when the sensor detects a drop of pressure (*).
•- The engine will run for 20 minutes (you have to program the auto shut down).
When you stop the engine, or after the automatic shutdown, the Be126 will activate the external lamp: 'OPERATE
MANUAL START TEST BUTTON IF LAMP IS LIT'. You are required to start manually the engine. Once the engine is
running, the Be126 will turn off the lamp. We recommend that you consult the sections 10.9.7.1-2-3-4-5 of the
UNI EN 12845 Standard.
(*) Note. If, after a minute time, the pressure fails to drop down, the Be126 will trigger the alarm [TEST FAILURE
WARNING] (see the section 21.0.2 to change the alarm delay if necessary).
2.4.3 NFPA 20 TEST FACILITY (Random Test)
When the Be126 is in AUTO mode of operation, you can carry out a test of the automatic system:
1) Push the [PUMP TEST] button.
2) The display indicates the message [TEST START].
3) The Be126 activates the DRAIN VALVE (output JB-5) to initiate a test.
4) The Be126 will start the engine when the sensor detects a drop of pressure (*).
5) The engine will run and eventually will stop according to your settings.
(*) Note. If, after a minute time, the pressure fails to drop down, the Be126 will trigger the alarm [TEST START] (see
the section 21.0.2 to change the alarm delay if necessary).
2.4.4 NFPA 20 / UNI EN12845 TEST FACILITY (Weekly Test)
The Be126 features a [TEST SCHEDULER] menu that will weekly exercise the diesel engine (see 8.0). You can
program a day of the week, hour and minutes to start the engine. You have to program in the same day, hour
and minutes to stop the engine. At the programmed date & time, the ‘scheduler routine’ will activate the DRAIN
VALVE (output JB-5) and will display the message [TEST SCHEDULER].You can program a [TEST FAILURE
WARNING] alarm timeout in case the system will not trigger a start (see the [TEST FAILURE] in section 21.0.2).
Once started, the engine will run for the programmed time of the [TEST SCHEDULER] menu . The [EVENT HISTORY]
will record all events indicating date & time. The embedded data logger will record the variation of the water
pressure (supposing you connected and correctly configured a water pressure transmitter).
We recommend that you consult the chapter 12 of the NFPA 20 Standard.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 11
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2.4.5 ENGINE PROTECTION MODE TEST FACILITY
You enable the ‘Engine Protection Mode’by connecting the terminal JF-10 to battery minus. This setting is used
in general purpose diesel water pump for various applications: farm irrigation systems, pumping stations for
water supply systems, automatic diesel pumping stations. In these applications the Be126 plays the additional
important role of protecting the diesel engine.
You have at your disposal a wide choice of test options:
- start the engine directly by using the scheduler without using a drain valve
- test the engine starting circuits holding the fuel valve closed
- run the engine on a daily basis for a programmed time
- test the engine at nominal or idle speed
The settings to configure test are included in the [MISCELLANEOUS] and [TEST SCHEDULER] sub-menu (see 8.0).
Section 3.0 - SYSTEM STATUS PAGE
The Be126 displays the ‘System Status Page’ when you push the [HOME] button, when you change a mode of
operation and when the Be126 starts the engine.
Example of a typical ‘System Status Page’
AUTO MANUAL OFF F
START DEMAND OFF
WATER PRESSURE 12.1
NOT RUNNING
SA 16:16:13 12 / 09 / 15
The mode of operation is indicated by a back-lighted message (in the example:
[MANUAL]). The [START DEMAND OFF] means that there are no requests to start
the engine. The message [START DEMAND ON] indicates that Be126 detected a
start of request (or in other words, a possible fire situation). When you configure
the pressure transmitter, the Be126 indicates the value of the water pressure. The
fourth line indicates the status of the engine: running or not. The last line, on the
bottom, displays the real time clock. To browse the engine instruments push the
[ ↓ ] arrow. To open the main menu page push the [MENU] button.
2.4.6 TEST LAMP FACILITY
To test all LED indicators (LED stands for ‘Light Emitting Diode’) push and hold the LAMP TEST pushbutton
(see front fascia description in section 1.1).
Section 3.1 - ENGINE INSTRUMENTS PAGE
Example of an engine instrument page (to enter this page push the [HOME] button and then, push [ ↓ ].
(RPM)
1500
F
ENGINE
(BAR) (°C) FUEL (%)
6.5 88.5 92
This is the most important instrument page of the engine. It displays the main
information about Rotational Speed, Oil Pressure, Coolant Temperature and Fuel
Level in the tank.
To browse other pages push the [ ↓ ] arrow. To return to the ‘System Status
Page’push the [HOME] button at any time.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 12
12
Section 3.2 - MAINS INSTRUMENTS
To display this page push the [HOME] button and then, repeatedly push the [ ↓ ] button.
FREQ (HZ)
50.0
CCW (*)
MAINS
L1(V) L2(V) L3(V)
406 399 400
This page provides you basic information about power utility: frequency, voltage
and phase rotation. You can program limits for Over/Under voltage, frequency
and other. The Be126 will trigger an alarm and will record the event in the LOG
EVENT MEMORY. To browse other pages push the [ ↓ ] arrow. To return to the
‘System Status’page push the [ HOME ] button.
Consult section 22.0 to see the MAINS adjustable parameters.
(*) This message indicates the rotation of the phases: CCW or CW
Section 3.3 - BATTERY INSTRUMENTS
To display this page push the [HOME] button and then, repeatedly push the [ ↓ ] arrow button.
HOURS
18.5
F
SERVICE
S1(H) S2(H) S3(H)
82 182 282
BATTERY 1
BATTERY 2
N° OF START 1
N° OF START 2
13.8
14.0
42
40
This page provides voltage indication of battery voltage 1 & 2.
This page displays also the counter of the starts made by the circuit number 1
and number 2.
To browse other pages push the [ ↓ ] arrow. To return to the ‘System Status
Page’push the [ HOME ] button or repeatedly push the [ ↑ ] arrow.
Section 3.4 - MAINTENANCE INSTRUMENTS
To display this page push the [HOME] button and then, repeatedly push the [ ↓ ] button.
HOURS
18.5
F
SERVICE
S1(H) S2(H) S3(H)
82 182 282
This page provides information about running hours and maintenance timers.
When a timer reaches a zero count, the Be126 triggers the [SERVICE 1] (or
[SERVICE 2] or [SERVICE 3]) alarm (see section 36.0.9). In this case you are
required to carry out the engine or system maintenance. After that, you can
cancel the alarm by pushing and holding the [HOME] push-button for about 5
seconds. As an option you can modify the settings of the timers (see section
15.0).
To browse other pages push the [ ↓ ] arrow. To return to the ‘System Status
Page’push the [ HOME ] button or repeatedly push the [ ↑ ] arrow.
Section 3.5-MISCELLANEOUS INSTRUMENTS
To display this page push the [HOME] button and then, repeatedly push the [ ↓ ] button.
WATER (BAR)
FUEL %
CHARG.ALT.V.
AUX. °C
13.8
92.0
14.5
68
The [WATER BAR] indicates the water pressure supposing you have connected
and configured a pressure transmitter (see [WATER PRESSURE] in section 19.0).
The [FUEL %] is the measurement of fuel level (see [TANK FUEL LEVEL] in
section 16.0). The [CHARG.ALT.V.] is the measurement of the D+/W.L. terminal or
rotational speed transducer voltage.
The [AUX. °C] indicates the auxiliary temperature if you have connected a
temperature sensor to terminal JM-2 and configured an alarm ([AUXILIARY °C]
section 20.0).
When using a standard engine, this is the last page of the instruments. In case of
CAN-BUS engine, push the [ ↓ ] arrow to open the CAN-BUS instrument pages.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 13
13
Section 3.6-CANBUS (ECU) ENGINE INSTRUMENTS
To display these pages push the [HOME] button and then, repeatedly push the [ ↓ ] button. These pages appears only if
you correctly configure the [ENGINE TYPE] as described in section 12.0.
OIL LEVEL
SPN98 [XXX]
WATER IN FUEL
SPN97 [XXX]
.
It indicates measurements
about data sent by the ECU.
You can find additional
information in the engine
user manual.
DEMANDE TORQUE
SPN512 [XX]
ACTUAL TORQUE
SPN513 [XX]
.
It indicates measurements
about data sent by the ECU.
You can find additional
information in your engine
user manual.
FUEL °C
SPN174 [XXX]
FUEL BAR
SPN94 [XXX]
.
See above...
CRANKCASE BAR
SPN101 [XXX]
BOOST °C
SPN105 [XXX]
.
See above...
FUEL RATE
SPN183 [XX]
PEDAL %
SPN91 [XX]
.
See above...
INTAKE BAR
SPN106 [XXX]
AIR FILTER BAR
SPN107 [XXX]
.
See above...
TURBO BAR
SPN102 [XXX]
EXHAUST °C
SPN173 [XXX]
.
See above...
LOAD
SPN92 [XX]
ECU ENGINE HOURS
[XXXXXXX]
.
See above...
COOLANT %
SPN111 [XXX]
COOLANT BAR
SPN109 [XXXX]
.
See above...
Section 3.7 - BATTERY CHARGER INSTRUMENTS
.
The front panel includes LED (Light Emitting Diodes) numerical
displays to indicate voltage and current of the battery ‘1’ & ‘2’.
You are supposed to use MODbus compatible battery chargers (*)
able to send all measurements. In case MODbus battery chargers
are not available you can get the reading of the voltage measured on
the terminals JI-1 & JI-3 (see section 40.3.2) but you are required to
put two separated A-meters on the panel if you want to comply with
NFPA20 or UNI EN 12845 specifications.
You are required to connect the Battery Alarm ‘1’ & ‘2’ inputs (see
section 40.2.2.
(*) Bernini Design battery chargers model MCB are available for 12V
or 24V lead acid battery. Versions for 5Amps or 8Amps are available
as well.
V
BT1
BT2
V
A
A
4
3
2
1

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 14
14
Section 4.00 BE126 MAIN MENU & FUNCTIONS
To display the ‘Main Menu’push the [MENU] button. Push [ ↓ ] to browse the list. The selected sub-menu (or
function) is evidenced by the display. General navigation instructions:
-Push the [ ↓ ] or the [ ↑ ] button to move up and down through the sub-menus.
-Push the [→] button to enter the sub-menu (or function).
-Push the [←] button to exit the sub-menu (or function).
-Repeatedly push the [ ↑ ] button to proceed to the top of the ‘Main Menu.
In OFF mode of operation you can read & adjust the content of the sub-menus (see 33.0). In MANUAL or AUTO
mode of operation you are allowed only to read the contents of the sub-menus (see section 34.0).
Main menu
Section
You can:...
SET DATE & TIME
VIEW ALARMS
EVENT HISTORY
TEST SCHEDULER
DATA COMMUNICATION
USER PASSWORD
OEM PASSWORD
5.0
6.0
7.0
8.0
9.0
10.0
11.0
... configure the real time clock (set date & time)
... read information about active alarms
... display the recorded events
... schedule the test of the engine
... configure the data communication parameters
... insert a User password
... insert a OEM password
ENGINE TYPE
ENGINE PARAMETERS
ROTATIONAL SPEED
MAINTENANCE
TANK FUEL LEVEL
OIL PRESSURE
ENGINE TEMPERATURE
12.0
13.0
14.0
15.0
16.0
17.0
18.0
... choose the suitable ECU that matches your engine
... program & modify the engine parameters
... program & modify the engine rotational speed parameters
... schedule the maintenance of the engine
... set up the fuel tank level monitoring
... program the oil pressure monitoring parameters
... program the engine temperature parameters
WATER PRESSURE
AUXILIARY °C
MISCELLANEOUS
MAINS PARAMETERS
RESTORE DEFAULTS
CLEAR MEMORY
CLEAR EVENTS
19.0
20.0
21.0
22.0
23.0
24.0
25.0
... set up the water pressure parameters & transmitter
... program the auxiliary temperature parameters
... configure the maim automation parameter of the system
... set up alarms about MAINS monitoring
...restore the factory settings
...cancel the entire memory
...clear the Log Event History
CLEAR N° STARTS
DISPLAY & LANGUAGE
PUSHBUTTONS TEST
SWITCHES TEST
OUTPUTS TEST
SENSORS TEST
PICKUP/W TEST
WATER (BAR) LOGGER
26.0
27.0
28.0
29.0
30.0
31.0
31.1
32.0
... reset the counter of the number of starts
... set up language preferences and display contrast
... test the push buttons
... test the digital inputs
... test the digital outputs
... test the analogue inputs
... test the PICKUP(W) input
...display the pressure measurements of the last 31 days

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 15
15
Section 5.0 - SET DATE & TIME (REAL TIME CLOCK)
Push the [MENU] button to open the Main Menu. The [SET DATE & TIME] menu is the first of the list. Push the [→] button to
open the real time clock page.
Display
Instructions
TIME 00:00:00
DATE 01/01/00
FORMAT DD/MM/YY
SAVE [→]
Use [ ↑ ] or [ ↓ ] to select a function. Push [→] to enter the numerical field.
Push [ ↑ ] or [ ↓ ] to set a value. Push [←] to return. The item [00:00:00] (seconds) is
always forced to zero.
If you want to change the format, choose [FORMAT] and push [→]. Select the proper
option by using [ ↑ ] or [ ↓ ]. Push [←] to return to the function.
If the option [DD/MM/YY] is suitable for you, push [ ↓ ] to proceed.
Select the [SAVE] item by using the [ ↓ ] arrow. When the Be126 backlights the [SAVE]
item, push the [→] arrow to initiate the clock of Be126 at the correct local time (use
an external clock reference) or push [←] to quit without affecting the clock.
Section 6.0 –VIEW ALARMS (ALARM MONITORING)
This menu can contain up to 10 pages of active alarms tagged with date and time. This page, called ‘Alarm Page’,
opens automatically in case of alarm(s), but you can open it at any time by selecting the sub menu [VIEW ALARMS]
from the Main Menu. A typical alarm page is indicated below:
To open the ‘Alarm Page’, in case of an alarm, push the [HOME] button.
ALARM: 1/10
LOW OIL PRESSURE
SHUTDOWN 0,8 BAR
-----------------------------------------
Day HH:MM:SS DD/MM/YY
ALARM: 2/10
LOW OIL PRESSURE
WARNING 2,8 BAR
-----------------------------------------
Day HH:MM:SS DD/MM/YY
Use [ ↑ ] or [ ↓ ] to browse additional alarm pages. The alarms are also recorded in the
Event History memory (see section 7.0).
To exit the alarm page, push [HOME]: you open the ‘System Status Page’ (see 3.0).
In case of alarm, the [HOME] button allow you to toggle between the ‘Alarm Page’ and
the ‘System Status Page’.
To cancel the alarms, you are required to enter the OFF mode of operation (see 36.0).
When you enter the ‘Alarm Page’ and there are not active alarms, the display indicates
the message [NO ALARMS!].
Section 7.0 –EVENTS HISTORY (EVENTS LOG)
This menu can contains up to 200 pages of events tagged with date and time. A typical page is indicated below.
To access this sub-menu, push the [MENU] button to open the Main Menu. Repeatedly push the [ ↓ ] button until
you reach the [EVENT HISTORY] menu. Push [→] to enter the sub-menu.
Event page description
EVENT: 1/200
START DEMAND ON
Day HH:MM:SS DD/MM/YY
EVENT: 2/200
AUTO MODE
Day HH:MM:SS DD/MM/YY
Use the [ ↑ ] or [ ↓ ] arrow to browse the pages. To exit the page, push the [HOME]
button: you open the ‘System Status Page’ (see section 3.0).
The Be126 records up to 200 events. The display provides date & time information for
warnings, shutdowns and other events.
Note: to remove the content of the pages you can use the [CLEAR EVENTS] command
(see section 25.0).

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 16
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Section 8.0 - TEST SCHEDULER
To program this sub-menu, push [OFF] to enter the OFF mode of operation. Push [MENU] to open the main menu
list. Repeatedly push the [ ↓ ] button until you reach the [TEST SCHEDULER] menu. Push [→] to enter.
Display
Description (see also section 2.4.4)
START STOP
MO - -:- - - -:- -
TU - -:- - - -:- -
WE - -:- - - -:- -
TH - -:- - - -:- -
FR - -:- - - -:- -
SA - -:- - - -:- -
SU - -:- - - -:- -
- -:- - = HH:MM
(Example 08:30)
You can set up the time to start & automatically stop the engine on specific days of the
week. Before setting up the scheduler, you are required to set up the date and time of the
internal clock (see 5.0). If you fail to set up the clock, the [CLOCK ERROR WARNING] alarm will
take place (see 36.0).
Follow the instructions:
Use [ ↑ ] or [ ↓ ] to select a day of the week. Push [→] to enter the START field.
Use [→], [ ↑ ] and [ ↓ ] to set HH:MM. Push [→] to enter the STOP field. Use [→], [ ↑ ] and
[ ↓ ] to set HH:MM. Repeatedly push [←] to return to the day selection. Do the same in
case you want set up additional day of the week. Push [←] to exit.
The scheduler triggers a test only in AUTO mode of operation. During the TEST, the display
will indicate the message TEST instead of AUTO. In case of NFPA /EN applications, take
care to program the automatic shut down accordingly (see 2.4.4).
Section 9.0 - DATA COMMUNICATION To access this menu, see the instructions on section 4.0.
Display
Description
MODBUS CB1
OFF
MODBUS CB2
OFF
BE126 NODE
3
MODEM RESET
OFF
This menu allows you to set up the MODBUS data communication for the battery chargers.
Default settings provide ‘NO MODBUS’ battery charger. In NFPA/EN applications we
recommend that you set MODBUS CB1 & CB2 to ‘ON’ and connect a Bernini Design MCB
battery charger. ‘Battery Charger 1’features the NODE 1. ‘Battery Charger 2’features the
NODE 2. Connect ‘Battery Charger 1’ to battery set ‘1’ & ‘Battery Charger 2’ to battery set
‘2’. Default MODBUS node for BE126 is ‘3’. The nodes 1 & 2 are reserved for the battery
chargers. In case you enable a battery charger MODBUS, you are no longer allowed to
setup a [BE126 NODE] to 1 or 2 for the BE126.
The [MODEM RESET] option [ON]allows you to supply the modem via the JC-1 output. When
the Be126 detects a failure in the modem, the Be126 shuts down the output for a few
second providing a power on reset for the Modem.
Section 10.0 - USER PASSWORD To access this menu, see instructions on section 4.0.
Display
Instructions for setting up a USER password
PASSWORD
CLEAR PASSWORD
NEW PASSWORD
BACK * * * * OK
[←] [→]
CLEAR PASSWORD?
[←] YES NO [→]
SECTION 33.0
INDICATES THE MENU
PROTECTED BY THE
USER PASSOWORD
The display will present the options [PASSWORD] (to insert a new password) and [CLEAR
PASSWORD] (to cancel an existing password).
Use [ ↑ ] or [ ↓ ] to select a function. Push [→] to enter the function.
Insert a password
a) Push [→] to select the first digit on the left.
b) Push [ ↑ ] and [ ↓ ] to choose a number in between 1 to 9.
c) Push [→] to move right to the second digit from the left.
d) Repeat step b) and step c) until you program the all 4 digits.
d) Push [→] to confirm the password (the display will indicate the message [PASSWORD
SAVED!]).
e) From now on, programming will be password protected. By using the USER password
you are not authorized to access the OEM parameters (and vice versa).
Remove (clear) the password
a) To clear a password you are required to select the [CLEAR PASSWORD] function.
b) The display indicates the available options: YES ([←])or NO ([→]).
c) The display will indicate the message [CLEAR PASSWORD DONE].
d) From now on, you will no longer need the User Password.
(*)Note: the password ‘0000’ is not allowed
If you have lost the password, see section 35.0 for additional help

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 17
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Section 11.0 - OEM PASSWORD
To access this menu, push [OFF] to enter the OFF mode of operation. Push [MENU] to open the main menu list.
Repeatedly push the [ ↓ ] button to select [OEM PASSWORD]. Push [→] to enter the Menu.
Display
Instructions for OEM password
PASSWORD
CLEAR PASSWORD
NEW PASSWORD
BACK * * * * OK
[←] [→]
CLEAR PASSWORD?
[←] YES NO [→]
SECTION 33.0
INDICATES THE MENU
PROTECTED BY THE
OEM PASSOWORD
The display will present the option [PASSWORD] (to insert a new password) and [CLEAR
PASSWORD] (to cancel an existing password).
Use [ ↑ ] or [ ↓ ] to select a function and push [→] to enter the function.
Insert a password
a) Push [→] to select the first digit on the left.
b) Push [ ↑ ] and [ ↓ ] to choose a number in between 1 to 9.
c) Push [→] to move right to the second digit from the left.
d) Repeat step b) and step c) until you program the all 4 digits.
d) Push [→] to confirm the password (the display will indicate the message [PASSWORD
SAVED!]).
e) From now on, programming will be password protected. Note that using the OEM
password you are authorized to access the USER parameters (not vice versa).
Remove (clear) a password
a) To clear a password you are required to select the [CLEAR PASSWORD] function.
b) The display indicates the available options: YES ([←])or NO ([→])
c) The display will indicate the message [CLEAR PASSWORD DONE].
d) From now on, you will no longer need a password to program the Be126.
(*) Note: the password ‘0000’ is not allowed
If you have lost the password, see section 35.0 for additional help
Section 12.0 - ENGINE TYPE
Use [ ↑ ] or [ ↓ ] to select the [ENGINE TYPE] from the Main Menu (section 4.0). Push [→] to enter this submenu.
Engine type selection
Instructions
ENGINE:
CONVENTIONAL
UP( F4) –NEXT
DOWN (F3) –PREVIOUS
LEFT (F1) –EXIT OR SAVE
SAVE?
[←] YES NO [→]
A) - Use the [ ↑ ] or [ ↓ ] to select the type of engine for your application.
B) - Push the [←](F1) to open the confirmation page.
C) - Push the [←](F1) to save the configuration (push [→](F2) to quit).
NOTE - After saving, we recommend that you remove the battery supply for a few
seconds. When you reconnect the supply, check the initial page on the display: a
welcome message should indicate the model or the option you saved in the memory.
NOTE: the term [CONVENTIONAL ] stands for standard engine without ECU (in other
words without CANbus). In this case we recommend that you connect and configure
sensors to monitor oil pressure and temperature of the engine.
Table 12.0 List of engine types (the list is subject to change without prior notice)
[ 1 ]
Conventional
[ 9 ]
Perkins '03 '08
[ 17 ]
Iveco Vector
[ 2 ]
Standard J1939
[ 10 ]
Perkins 1100
[ 18 ]
MTU
[ 3 ]
Volvo EDC3
[ 11 ]
Cummins 850
[ 19 ]
Kubota
[ 4 ]
Volvo EDC4
[ 12 ]
Cummins PCC13XX
[ 20 ]
Isuzu
[ 5 ]
Volvo EMS2
[ 13 ]
Deutz EMR2
[ 21 ]
Yanmar
[ 6 ]
Scania EMS
[ 14 ]
Deutz EMR3
[ 22 ]
Daimler Chrysler
[ 7 ]
Scania EMS2
[ 15 ]
Detroit Diesel
[ 23 ]
Not used
[ 8 ]
John Deere
[ 16 ]
Iveco Cursor
[ 24 ]
Not used

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 18
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Section 13.0 - ENGINE PARAMETERS
Use the [ ↑ ] or [ ↓ ] arrow to select the [ENGINE PARAMETERS] from the Main Menu (section 4.0). Push the [→]
arrow to enter this submenu. You can adjust the parameters only in OFF mode of operation.
Engine Parameters
Notes
Engine Parameters
Notes
Section 13.0.1
CRANK DELAY
1 sec
CRANK TIME
15 sec
(range: 1-15 seconds)
The [CRANK DELAY] timer delays the
crank when required by the engine
characteristics. [CRANK TIME] limits
the insertion time of the starter
motor. NPFA 20 requires a [CRANK
TIME] of 15 seconds.
Section 13.0.2
REST TIME
15 sec
CRANK ATTEMPTS
6
(range: 6-15 attempts)
The NPFA 20 standard
requires a [REST TIME] of 15
seconds.
The NPFA 20 standard
requires six starting attempts.
Section 13.0.3
CRANK VDC (*)
8.0 VDC
CRANK RPM
700
(3-30VDC /300-1000 RPM)
The Be126 terminates the crank
when voltage of the charger
alternator [CRANK VDC] or rotational
speed [CRANK RPM] rises above the
setting. In NFPA/EN application, a
charger alternator shall not be
used. You can connect a speed
sensitive relay (that provides a
+VDC when engine is running) to
terminal JC-10 or a pickup
connected to JM8-9 terminals.
Section 13.0.4
PREGLOW TIME
OFF
PREGLOW mode
1
These parameters are disabled
in NFPA-APPLICATIONS.
Section 13.0.5
STOP SOLENOID
2 sec
BELT BREAK
OFF
(1s-5mins /3-30VDC)
[STOP SOLENOID]:you are requested
to connect a driver relay to the
output JC-4. The Be126 will
activate the output for the
programmed time.
[BELT BREAK]:it detects a belt break
condition of the belt alternator. The
option OFF disables the alarm. In
NFPA/EN modes the alarm does
not shut down the engine.
Section 13.0.6
FAIL TO STOP
OFF
ALARMS BYPASS
10 sec
(limits 2-99seconds)
By setting the [FAIL TO STOP]
option to [ON], the Be126
triggers the alarm when the
engine fails to stop.
The [ALARM BYPASS] timer
allows the Be126 to ignore the
Oil Pressure /Temperature
alarms for a few seconds after
engine starting. In NFPA/EN
modes these alarms do not
shut down the engine.
Section 13.0.7
HIGH BATTERY V.
15.0 VDC
LOW BATTERY V.
11.0 VDC
(limits 6.0-36.0Vdc)
You can set High/Low battery
voltage limits. A bypass 15 seconds
delay time is automatically
provided.
Section 13.0.8
START ENABLE
6.0 VDC
(limits 6.0-11.0Vdc)
You can exclude a battery from
the start sequence if the
voltage is lower than [START
ENABLE]. In case that both
batteries are lower than the
setting, the Be126 will trigger
immediately the starting failure
alarm. You are required to try
to start the engine manually.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 19
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Section 14.0 - ROTATIONAL SPEED
Use the [ ↑ ] or [ ↓ ] arrow to select the [ROTATIONAL SPEED] from the Main Menu (section 4.0). Push the [→]
arrow to activate the submenu. You are allowed to adjust parameters only in OFF mode of operation.
Parameters
Notes
Parameters
Notes
Section 14.0.1
UNDER SPEED
OFF
BYPASS DELAY
6 sec
(100-4000 /1-15
secs)
Operating low-limit of the engine
speed. This protection is only enabled
in ‘AUTO’ mode of operation. The
alarm does not shut down the engine.
A programmable alarm bypass is
provided. It is mandatory that you
program a correct TEETH count
(see section 14.0.3).
Section 14.0.2
OVER SPEED
OFF
BYPASS DELAY
1 sec
(100-4000/1-15 secs)
The [OVER SPEED] protection works
in all modes of operation. The
engine will stop immediately. To
disable this alarm by choose the
option [OFF]. It is mandatory that
you program a correct TEETH
count
(see section 14.0.3).
Section 14.0.3
PICKUP / W RATIO
100.0
IDLE TIME
OFF
(10.0 - 500.0 Teeth /
1sec-59mins)
(*) the use of a
pickup is
mandatory in
NFPA20
applications
You can set a [PICKUP / W RATIO] and
connect a pick-up or the ‘W’ terminal
of the belt charger alternator (*). The
‘ratio’ has a range of 10.0 up to 500.0.
The Be126 will enable the PICK-UP
failure monitoring and will indicate a
rotational speed by setting the proper
PICK-UP ratio.
During [IDLE TIME] the Be126 disables
the JB-2 output. You can control an
external governor (see 14.0.4). When
the timer expires the Be126 will
energize the JB-2 output that will
make the governor reaching the
nominal speed.
Section 14.0.4
IDLE SPEED
OFF
NOMINAL SPEED
1500
(100-4000 R.P.M.)
In ‘AUTO’mode, after engine
starting, the engine can run at [IDLE
SPEED] then, after an [IDLE TIME]
(see 14.0.3), it will reach the
nominal speed. You can set an
[IDLE SPEED] only supposing your
engine has the CANbus interface.
If not, you can program an [IDLE
TIME], but you are required to use
the JB-2 output for driving the
engine governor via an auxiliary
relay. The [NOMINAL SPEED] setting
is mandatory when you connect the
Be126 to an ECU.
Section 15.0 - MAINTENANCE (SERVICE)
Use the [ ↑ ] or [ ↓ ] arrow to select the [MAINTENANCE] from the Main Menu (section 4.0). Push the [→] arrow to
activate the submenu. You are allowed to adjust these parameters only in OFF mode of operation.
Display
Instructions
MAINTENANCE 1
OFF
MAINTENANCE 2
OFF
MAINTENANCE 3
OFF
(range 0-9999 hours)
You can schedule the engine maintenance (oil change, air/oil filters and so on).
Push [ ↓ ] or [ ↑ ] to choose the MAINTENANCE timer of your interest. Push [→] to enter. To
disable the timer set the option to [OFF]. The Maintenance timers 1, 2 or 3 once expired, will
generate a warning. The alarm will remind you to carry out the maintenance routine.
Programming: use [ ↑ ] or [ ↓ ] to select a timer. Push [→] to select the numerical field.
Push [ ↑ ] or [ ↓ ] to set a value (example 300h). Push [←] to return to the function. The
timers work only when engine is running. Push [← ] to exit and follow the instructions on
screen (save.. and so on).
Once a timer is running, the remaining hours count is indicated in the ‘System Status’ menu (see 3.4
SERVICE 1-2-3). When a timer expires, you are required to carry out the maintenance routine. To clear
the alarm, and to restart the counter, enter the OFF mode to stop the engine. Push the [MAN] button to
enter the Manual mode of operation. Push & hold the button [HOME] for about 20 seconds. The Be126
will automatically restart the timer(s). Push the [OFF] button for about 20 second to totally cancel the
alarm.

Be126 NFPA20 Installation Manual V4XX - 03 Nov -2018 page 20
20
Section 16.0 - TANK FUEL LEVEL (JM-5 INPUT)
Use the [ ↑ ] or [ ↓ ] arrow to select the [TANK FUEL LEVEL] submenu from the Main Menu (section 4.0). Push the
[→] button to open this submenu. You are allowed to adjust parameters only in OFF mode of operation.
Fuel Parameters
Notes
Fuel Parameters
Notes
Section 16.0.1
BYPASS SWITCH
OFF
LOW % SHUTDOWN
OFF
(15s-99mins / 1-99%)
The Be126 triggers the [FUEL
RESERVE WARNIING] alarm if you
connect to a battery minus the JF-5
terminal (digital input).
By programming a [BYPASS SWITCH]
time, the engine will shut down
after programmable time. During
the [BYPASS SWITCH] timing the
Be126 triggers the [FUEL RESERVE]
warning. The option [OFF] will make
the Be126 to provide a warning
without shutting down the engine.
The Be126 shuts down the engine
if you program a [LOW %
SHUTDOWN] limit. The Be126
provides, automatically, a 15
second bypass time delay. You are
required to connect a resistive
sensor to the JM-5 input.
Section 16.0.2
LOW % WARNING
OFF
HIGH % WARNING
OFF
(limits 1-99%)
You can set Low and/or High fuel
level alarms.
The Be126 monitors the fuel level,
providing a warning. The Be126
features a 15 second bypass alarm
delay.
You are required to connect a
resistive sensor to the JM-5 input
and to correctly configure the
response curve (see below).
IMPORTANT NOTE ABOUT FUEL LEVEL MEASUREMENT
In order to make Be126 in condition to display the FUEL LEVEL
measurement, in addition to a level sensor connected to JM-5, you
are required to set up at least one fuel level alarm for example
[LOW % WARNING]
By keeping all alarms to [OFF], the display will not indicate a level
measurement.
Section 16.0.3
POINT 1 LEVEL
0%
POINT 1 OHM
10 OHM
POINT 2 LEVEL
0%
POINT 2 OHM
10 OHM
POINT 3 LEVEL
0%
POINT 3 OHM
10 OHM
Fuel Level Sensor response curve.
You can edit 6 points in between
0% up to 99% for the Fuel Level
indication and 6 points for sensor
resistance (0-1000 OHM). Factory
programming complies with VDO
/Continental fuel sensor.
Fuel Level Sensor must be
connected to JM-5. To display the
level measurement you are
required to program a setting of
‘Low’ or ‘High’ level (see above).
Section 16.0.4
POINT 4 LEVEL
0%
POINT 4 OHM
10 OHM
POINT 5 LEVEL
50%
POINT 5 OHM
95 OHM
POINT 6 LEVEL
99%
POINT 6 OHM
180 OHM
Fuel Level Sensor response curve.
NOTE: If you set all fuel level
alarms to OFF (as par default
settings), the Be126 will ignore the
input JM-5. You will not get
indication of fuel level.
If you do not use an analog fuel
level sensor, you can connect a
level switch to the JF-5 input.