Be142 AMF CONTROLLER PRICE
The AMF controller is NFPA110-COMPLIANT and suitable for TELECOM applications. Over 100.000 AMF controllers are running worldwide, and we offer a 10-year warranty.
PURCHASE A SAMPLE
AMF Controller Price List 199€
BLACK FRIDAY 99€
FREE-SHIPPING
OEM DISCOUNT
The Be142 AMF controller price for OEM features 50%+10% discount when purchased in 50, 100 and 200 pcs
AMF CONTROLLER DESCRIPTION
A high-luminosity display shows parameters, alarms, and operating functions. The Be142 controller interfaces with resistive or digital sensors. It measures Vac, Aac, Vdc, Hz, hour count, R.p.m., Oil Pressure, Engine Temperature, Battery Vdc and Fuel Level. Software for remote monitoring is also provided free of charge. The Be142 provides MODBUS via RS-485 and complies with NFPA-110 / NFPA-99. Install our TCP-IP server to monitor and control the Be142 via the INTERNET. The Be142 is designed to drive two contactors. In addition, the Be142 short-circuit-proof outputs are suitable for automotive relays, 12v or 24v. The connections of flywheel diodes on the relays will keep the electrical noise at a low level.
THE Be142 CONTROLLER REAR VIEW
All connections are made via removable female connectors.
1) RS485 4-POLES PLUG 2) DIGITAL INPUTS 3) ENGINE INSTRUMENTS INPUTS 4) POWER SUPPLY AND ENGINE RUNNING CONNECTIONS 5) GENERAL PURPOSE OUTPUTS 6) CURRENT TRANSFORMERS CONNECTIONS 7) MAINS AND GENERATOR VOLTAGE CONNECTIONS 8) REAR COVER SCREWS 9) 4 X M4 FIXING NUTS
DIVING INTO AMF CONTROLLER FOR GENERATOR
An AMF controller is an electronic module capable of transferring the LOAD from MAINS to a GENERATOR. In other words, the AMF controller automatically connects the MAINS source first. You can override the automatic control and manually start the generator. The AMF controller is the key component of your AMF panel.
FORGET TOYS WITH LCD
MOVE TO MILITARY-GRADE -30°C/+70°C DISPLAY
BERNINI DESIGN STARTED MANUFACTURING AMF CONTROLLERS IN 1984
We know what it is about. Thousands of controllers made in 1990 are fully functional. But most incredible is that we can manufacture in 2025 the items manufactured in 1984. All equipment is fully interchangeable pin-to-pin. Incredible but true!
IN THE PICTURE, THE FIRST COMPACT AMF CONTROLLER OF THE WORLD: THE AMT910
After that, we redesigned the controller, by removing the selector knob. The mode of operation became stored in a NON-VOLATILE memory. It was about the first FLASH memory available on the market. The Be21 was born!
THE BE21 AMF CONTROLLER WILL STILL BE AVAILABLE IN 2025, AFTER 25 YEARS FROM ITS FIRST APPEARANCE IN THE INTERNATIONAL MARKET
The Be21 is a single-phase or two-phase AMF controller. To get a full 3-phase monitoring, Bernini Design introduced the market the Be142. In 2025, we introduced the 'fourth' hardware generation. It is a bout a trustworthy controller with a 10-year warranty.
THE BE142 AUTO MODE OF OPERATION
The AUTO mode of operation runs a complex software that guarantees the automatic transfer of the LOAD to MAINS or GENERATOR. In addition to standard timers included in the commonly available models on the market, the Be142 features additional programmable timers to safeguard the contactors, preventing dangerous bounces.
When a timer is running, the display indicates its status. Additional messages help you understand the various functions like Warm p, Cooling Down, Stop and many others. The OEM manual describes all details about them.
THE BE142 MANUAL MODE OF OPERATION
The manual mode allows you the essential function required for testing the standby generator. All protections are active. As far as the contactors driving, you can not activate a contactor if the voltage and frequency are not within limits. If you have to carry out some special testing, you may temporarily disable the protections.
After finishing you testing, we recommend that you enable all protections before leaving the controller in automatic mode of operaion. When a timer is running, the display indicates its status. Additional messages help you understand the various functions like Warm p, Cooling Down, Stop and many others. The OEM manual describes all details about them.
THE BE142 PROGRAMMING
The Be142 AMF controller is user-friendly. Despite its complexity, with over 200 settings, it offers a smart and intuitive programming method. The video provides an example programming session.
The Be142 AMF controller features the following group o adjustable parameters:
MAINS FAILURE AMD MONITORING PARAMETERS
GENERATOR CONTROL AND PROTECTION
ENGINE INTERFACE SETTINGS
INPUT-OUTPUTS PARAMETERS
SERVICE, RENTAL AND MAINTENANCE SETTINGS
MODBUS COMMUNICATION SETTINGS
REMOTE CONTROL SETTINGS
AMF CONTROLLER DIAGRAM
The AMF panel fitted with a Be142 controller connects the LOAD to the generator via the KG. This is possible only when the MAINS is disconnected or, in other words, when the KM is open. The KM auxiliary contacts are closed when the KM is open. In this way, the AMF controller supplies the KG coil via a suitable pilot relay.
When switching the LOAD to the MAINS, the Be142 add a programmable DEAD-TIME. This will avoid sparks over voltages, and over currents when the LOAD is highly inductive. This is the case with big electric motors. Before energising a heavy LOAD, the Be142 AMF controller waits for the 'INTERLOCK-TIME'. This is set to 2 seconds by default. The inputs and outputs are fully configurable. We vividly recommend that you put flywell diodes on the output relays. Particular care when connecting the common ground of the sensors. Despite the Be142 having an internal ground sensing compensation, you will get the best result with good wiring. See our application notes about it.
MODBUS-RTU
The BE142 AMF controller features an RS-485 serial interface capable of driving a 1000m twisted pair with 127 nodes. It completely supports the MODBUS-RTU protocol.
BE142 PROTOCOL & MODBUS REGISTERS
BE142 GSM REMOTE CONTROL MONITORING
Thanks to the RS485 port you can easily build a GSM-based AMF panel. You can monitor the vital parameters and, most important of all, you can remotely control your standby generator.
AMF CONTROLLER APPLICATION NOTES
AMF CONTROLLER CONTROLS TWO SEPARATE LOADS
Install the AMF controller to supply two separate loads from a single generator. The generator connects to the load affected by the power outage. This application is typical in private houses.
Two houses' power outages can be resolved by investing in a single generator. You must make two ATS panels of a suitable size. The two controllers communicate with each other with only a 2-wire hardware handshake.
ATS CONTROLLER IN A DUAL GENERATOR SYSTEM
The following wiring diagram presents the basic connections of a dual-generator AMF controller configuration. With Be142 you can connect two generators as an emergency standby to one single load. The BREAK-BEFORE-MAKE configuration is mandatory for the protection of the load. In case of a prolonged outage, you can set up ENGINE 1 as a master.
In case of starting failure, the second engine will start. The generator will supply the load. You are required to include the AMF controllers and transfer switches in the same cabinet. The two controllers communicate with each other with only a 2-wire hardware handshake.
Be142 AMF CONTROLLER SPECIFICATIONS
DC Supply: 5.5/30Vdc, 50/100mA
Protection: 200mA thermal electronic fuse
Dimensions: 194 X 146 X 205
Panel Cut-out: square
Operating temperature: -30 to +70 deg C
Humidity range: 8% up to 90%
Meets ECC 89/336, 89/392, 73/23, 93/68, IEC 68-2-6
Display: 4 digits solid state
LED Indicators for all functions
12 Silver-Membrane-Type 100.000 actions life
Over 100 programmable adjustable settings
Connectors: removable terminal blocks
Operating Vac: up to 600Vac
Overvoltage Voltage: 2KVac
CTs: up to 1000/5Aac
UPGRADING AN OLD BE42-BASED PANEL WITH BE142
The Be142 shares the same low-voltage connection as the Be42 controller. The Be42 monitors 3-phase of MAINS but only two phases of the GENERATOR. The Be42 features only one input for a current transformer. The Be142 is a fully 3-phase AMF controller. When you are going to replace an old Be42, we recommend that you install the Be142. It is not only a 3-phase, but it has additional features about MAINS and GENERATOR monitoring. You can see in the picture the requirement from the connection point of view.
You are required to remove the 3 wires of the MAINS connection. You must replace the old connector with a 5-pole connector with the new one with 3 poles only. After that, you remove the old 3-pole connector for the generator and replace it with the new one. As you can see from the picture, Phase 3 of the GENERATOR remains unconnected. Finally, you are required to replace the code [0] with the code [1] in the parameter P(. This will instruct to monitor a 3-phase system on the MAINS and only a 2-phase on the GENERATOR. You will benefit from a new updated software running on your standby system.
BERNINI DESIGN SRL
ITALY Industrial Park
46035 OSTIGLIA
SUPPORT
+39 335 70 77 148