KEY START MODULE

Be172

ENGINE PROTECTION MODULE

The BE172 key start module includes the basic safeguards to protect a diesel engine. It features a 4-digit bright white display, 3 static outputs, 7 digital inputs, and a 30A-rated key switch. The BE172 key start module monitors an Oil Pressure, temperature switch, Fuel level switch, Charger Alternator Voltage, emergency switch, and Auxiliary alarm. It provides a MANUAL mode of operation via a 30A Key- switch.

BE172 KEY START MODULE  INSTALLATION MANUAL 2024

The display indicates battery voltage & h-counter. You can adjust, on-site, PRE-GLOW timing, several timing options for STOP SOLENOID,  Fuel Alarm Shut-Down options, Auxiliary Alarm Options, and other miscellaneous functions. The tropicalized electronic boards are hosted in a rustproof rugged steel box. A gasket made of a special polymer protects against the elements. You must provide a standard cut-out through-hole suitable for DIN 72 panel instruments. Two fixing clips made of steel feature a high degree of mechanical safety in case of shock and vibrations.

Be172

KEY START MODULE

PURCHASE

ONE SAMPLE

129€/each

Diesel Engine Key Start Module

PURCHASE TWO PIECES

2 x109€/each


YOU CAN PAY VIA BANK TT BY ASKING FOR A PROFORMA INVOICE TO

[email protected]

PURCHASE FOUR PIECES

4 x 69.00€/each


WHAT IS THE Be172 KEY START MODULE SUITABLE FOR?

USE THE BE172 ENGINE PROTECTION MODULE ANYTIME YOU NEED A LOCAL START-STOP FOR DIESEL ENGINES AND RELIABLE SAFEGUARDS TO PROTECT THE MACHINERY. THE BE172 IS THE IDEAL SOLUTION WHEN YOU RETROFIT ANY DIESEL-DRIVEN MACHINERY FOR PRIVATE OR COMMERCIAL / INDUSTRIAL USE.

AGRICULTURE ENGINES

MARINE ENGINES

HEAVY MACHINERY

COMPRESSORS AND GENERATORS

ALARM MONITORING

THE FOLLOWING PICTURES SHOW HOW THE DISPLAY REACTS IN CASE OF ALARMS. IN THE CASE OF PRE-ALARM THE MESSAGES BLINK ON AND OFF. ONCE THE ENGINE STOPS THE FIRST CAUSE OF SHUTDOWN FREEZES THE MESSAGE ON THE DISPLAY UNTIL YOU TURN THE KEY TO OFF. IN CASE OF SIMULTANEOUS MULTIPLE ALARMS, THE DISPLAY FEATURES A BUFFER AND 'ROTATES' THE MESSAGES ACCORDINGLY. THE DISPLAY ALLOWS SPECIAL TEXT INDICATIONS FOR TAILOR-MADE APPLICATIONS

LOW OIL PRESSURE

KEY START TYPICAL WIRING DIAGRAM

The Be172 key start module module connections are carried out via 0,8mmx6,3mm blade terminals. You are required to connect the inputs to switches [5]. The other side of the switches must be connected to battery minus, You can set up the controllers by connecting the PRG [7] terminal to battery minus. To drive Fuel or Stop solenoid you have to use external relays

BE172 KEY START MODULE INSTALLATION MANUAL 2024

The output 'FUEL' drives a relay suitable for an 'ENERGIZED to RUN' solenoid. This output energizes all the time you need to run the engine. This output automatically shuts down when you stop the engine or an alarm occurs. If you need an 'ENERGIZED to STOP' output, you can program timing for the parameter [P2].

ENGINE PROTECTION WIRING DIAGRAM

This way, the output 'ALR' will no longer work as 'ALARM OUTPUT', but as 'STOP SOLENOID'. In other words, when you use the BE172 in ENERGIZED TO STOP mode, you can not benefit from the ALARM output.

We recommend using relays to drive all outputs. The BE172 features short circuit-proof outputs [6] capable of supplying 200mA in normal conditions. You can use a 12 or 24-V battery [2]. Use 12V or 24V relays according to the type of battery. The connection of the D+ [1] is not mandatory but recommended.  We recommend that you use flywheel diodes to suppress the electric noise of the relays.

The KEY-SWITCH [4] is capable of directly driving the starter motor via the terminal [50]. You must connect the terminal [30] of the KEY-SWITCH [4] to the battery plus.

KEY START MODULE DETAILED DESCRIPTION

The Be172 key start module includes the basic safeguards to protect a diesel engine. It features a 4-digit military-grade 7-segment display, 3 static outputs, 7 digital inputs, and a 30Adc-rated key switch. The Be172  monitors an oil pressure switch, a temperature switch, a fuel level switch, a charger alternator voltage and auxiliary alarms. The Be172 provides a MANUAL mode of operation via a key switch. Finally, the Be172 offers 4 adjustable settings pre-glow, fuel solenoid, fuel alarm and auxiliary alarm. The Be172 is an upgrade of the most popular Be72 engine protection module. The display indicates ENGINE HOUR COUNT, BATTERY VOLTAGE, ALARMS, and INTERNAL SETTINGS

!!  W A R N I N G !!   

Relays and solenoids connected to Be172 must be wired to flywheel diodes or noise-suppression devices as indicated in the wiring diagram.


1.0 MANUAL START & STOP

A) - When the KEY is in position ‘OFF’, a white dot blinks on the right side of the display. This indicates the standby mode. All the time you turn the KEY to ‘OFF’ the display indicates the [HOUR COUNT] for about 10 seconds (for example [h 278]). Then, the display turns off. The ‘OFF’ mode clears all alarms.
B) - Turn the KEY to ‘ON’. The display indicates the battery voltage for 3 seconds (for example [b 12.6]).
C) - When the display indicates the prompt [StA-] (it stands for START) you are required to turn the KEY to ignition in the same way you start your car. When the Be172 detects oil pressure from the switch or the Be172 detects voltage on the charger alternator, the display indicates for a few seconds the status of the HOUR COUNTER and then a rotating animation will be continuously displayed. In case you programmed a pre-glow, the message [ПППП] will immediately appear as you turn the key on. You can turn the key to ignition as soon as the prompt [StA-] appears on the display.
If you leave the KEY in the on position without starting the engine, the Be172 shuts down the fuel after 20 seconds. The display will indicate the message [FAIL] (it stands for starting failure shutdown).
Note1 In normal conditions, when the engine is not running, the Be172 expects an oil pressure switch closed and no voltage on D+ terminals. If the Be172 finds a different logic condition, it will warn you by indicating for a few seconds the messages [oil.], [cHAr.], or both in sequence. You can anyway start the engine without problems. The Be172 reminds you to investigate the issue. It could be an open connection problem that prevents the full protection of the engine,
D) - Turn the KEY to ‘OFF to stop the engine. The display will indicate for 10 seconds the [HOUR COUNT]. Then, it will shut down the display. A white dot on the right side will blink slowly indicating a standby status. The Be172 absorbs as low as 8mA of current. Consider removing the battery supply if you do not use the engine for a long time (e.g. weeks or months).

2.0 KEY START MODULE ALARMS LIST

DISPLAY
ALARM DESCRIPTION
NOTES
[bELt]
Engine Belt break or Charger failure shutdown. The Be172 triggers this alarm and shuts down the engine if the input (D+/W.L) is continuously missing for at least 20 seconds. This alarm is ignored during the first 8 seconds after starting the engine.
Check for the belt or the charger alternator.
[°C]
Engine High-Temperature alarm. The Be172 triggers this alarm and shuts down the engine if the switch input (°C) is closed for at least one second. This alarm is ignored during the first 8 seconds after starting the engine.
Check the engine cooling system.
[ALAr]
 Emergency alarm. The Be172 triggers this alarm and shuts down the engine if the switch input (ALR) is closed for at least one second.
Check the emergency button status.
[FuEL]
Fuel level alarm. The Be172 triggers this alarm if the switch input (FUEL) is closed for at least one second. Based on the settings of the parameter [P3], the BE172 triggers a warning (it features auto-reset) or shuts down the engine after a programmable time.
Refuel the tank
[ALr1]
Alarm 1. The Be172 triggers this alarm if the switch input (SPARE) is closed for at least one second. Based on the settings of the parameter (P4), the Be172 triggers a warning (it features auto-reset) or shuts down the engine after a programmable time.
Check the Alarm 1 source.
[oiLP]
Low oil pressure. The Be172 triggers this alarm and shuts down the engine if the oil pressure switch connected to the (OIL) input is closed for at least one second. This alarm is ignored during the first 8 seconds after starting the engine.
Check the oil level.
[FAIL]
Fail to start alarm. The Be172 triggers this alarm and shuts down the (FUEL) output if it does not detect, within 20 seconds, a valid source of engine running from terminal (D+/WL) or a valid transition of the (OIL) input (closed-to-open).
Check the engine or check if have forgotten the KEY in the ON position.
[bXX.X]
This message  blinks to indicate a low/high battery voltage (11.8/15,6V & 23.6/31.0V)
Check the battery
[Err1]
[Err-]
Failure of the memory. Check the supply and retry programming. If the error persists, replace the Be172.
[Err2]
The supply is lower than 10V. The Be172 denies access to the memory.
Check the DC supply.
[EE.Er]
The Be172 failed the memory initialization routine during the power-on. Remove the supply for a few seconds. If the error persists, replace the Be172.

3.0 KEY START MODULE FUEL SOLENOID and STOP SOLENOID

    To stop the engine, we recommend that you use a FUEL SOLENOID (energized to run). This solenoid must be connected to the output [FUEL] via a pilot relay. In the case of STOP SOLENOID (energized to stop), you are required to set up the adjustable parameter [P2] as indicated in the programming instructions. You are required to connect the STOP SOLENOID to output [ALARM] via a pilot relay as indicated in the wiring diagram. The Be172 will energize the output for the programmed STOP time. When you use the output [ALARM] to drive a STOP SOLENOID, the ALARM function output will no be longer available. In other words, the STOP SOLENOID output shares the same output used for ALARM. The factory setting for the [ALARM] output is ALARM MODE

4.0 KEY START MODULE PROGRAMMING INSTRUCTIONS

    There are four adjustable parameters: [P1], [P2], [P3], and [P4]. Follow the instructions.
1) Make sure the battery supply is over 10Vdc; 12Vdc is the optimal supply.
2) Remove the DC supply, turn the key to OFF and connect to the battery minus the terminal [PRG].
3) Connect to the battery minus the “[TERMINAL]” associated with the parameter you want to program. The following table shows the allowed combinations. Disallowed connections display an error code.
DISPLAY
TERMINAL
DESCRIPTION
DEFAULT
OPTIONS
[P1]
(AUX1)
Pre-glow settings
OFF=No pre-glow
 6” 15” 30” 45” 1’
[P2]
(ALR)
Alarm/Stop solenoid
OFF=Alarm mode
5” 15” 30” 45” 1’ 2’
[P3]
(FUEL)
Fuel alarm modes
OFF=Warning only
5’ 10’ 20’ 30’ 60’
[P4]
(SPARE)
Alarm 1 modes
OFF=Warning only
5” 15” 30” 45” 1’ 5’
[Err-]
The Be172 detected a not-valid combination of inputs. For example (PRG) + (OIL) or (PRG) + [°C]
4) Connect the supply. The display will indicate the message [Prog], and for a second, the name of the parameter ([P1] for example). Finally, the display indicates the active setting (usually the factory default).
5) Turn the key ON. The Be172 will automatically scan, in sequence, each option for two seconds (if you have selected [P1], the Be172 displays OFF-6”-15”-30”-45”-1’).
6) When you see display the desired option, immediately turn the key to OFF. The display will blink twice to confirm your option: the Be172 immediately stores and activates the new setting.
7) Remove the supply, remove the (PRG) connection, and remove the “(TERMINAL)”.
8) Apply the supply. After the indication of the internal firmware in the form of a digit, the Be172 displays the parameter you modified ([P1] for example) and the setting ([6”] for example). In this way, all the time you supply the controller, you will be aware of the status of the parameters. If you modify all parameters, the display will indicate all parameters in sequence.

BE172 KEY START MODULE USER MANUAL 2024

DIMENSIONS & SPECIFICATIONS

BE172 REAR VIEW

KEY START MODULE BE172 KEY FEATURES

30A DC key-switch for manual start

N.C. or N.C. auxiliary contact options

Short circuit-proof solid-state outputs

Din size 72, shock-proof

Ingress Protection IP54

Full 3-year warranty 4-digit display

Battery V-meter

Hour- Meter 

Adjustable Settings

Pluggable into Be72 wiring

-30°C up to +70°C operating temperature

5,5 to 30Vdc operating voltage range

8mA standby current

Battery Monitoring

Rugged steel enclosure

Fully tropicalized electronic boards

Side view and dimensions

WHAT IS AN ENGINE PROTECTION KEY START MODULE MANUFACTURED BY BERNINI DESIGN?

The Bernini Design Be172 operates reliably in a range of environments, from minus 30 up to 70 degrees Celsius. LCDs (Liquid Crystal displays) are not recommended at the extremes of this range. It is quite difficult to obtain good readings below 5 degrees Celsius on an LCD Display. To avoid problems at low temperatures, the Be172 features a -40/+85 degrees Celsius rated solid-state, white light LED display. The majority of the applications for a key start module find a convenient mounting place directly on the frame of a Diesel Generator. In this case, the Be172 key start module is both rugged and vibration-proof. The Be172 plays an important role in the market in filling a gap among the normal key start modules on the market. You can find products that are far from a well-designed and rugged engine protection module capable of working in extreme conditions.


BERNINI DESIGN SRL

INDUSTRIAL PARK

46035 Ostiglia

ITALY

 [email protected]

+39 335 70 77 148

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