The DEIF AGC-100 series is an economical controller designed specifically for generator control, integrating functions such as generator protection, automatic start/stop, synchronization, grid connection, and power management. This series of controllers is widely used in backup power sources, mobile generator sets, and industrial self owned power stations due to its compact size, flexible configuration, and reliable performance. This article is based on the AGC-100 installation manual, systematically explaining the installation requirements, terminal functions, wiring specifications, and communication configuration of the equipment, providing comprehensive technical guidance for installation engineers and switchgear manufacturers.
Product Overview
1. Series model
The AGC-100 series includes multiple models to adapt to different application scenarios:
Model Function Description
AGC 112 Island mode operation, controlling the generator circuit breaker
AGC 113 automatic mains fault switching mode, controlling the generator circuit breaker and main circuit breaker
AGC 145 power management mode, controlling the generator circuit breaker and main circuit breaker
AGC 146 power management mode, controlling the generator circuit breaker, main circuit breaker, and bus tie circuit breaker
2. Main characteristics
Integrated measurement: Three phase true RMS measurement, parameters such as voltage, current, frequency, power, etc
Protection functions: reverse power, overcurrent, overvoltage, undervoltage, overclocking, underflocking, etc
Engine interface: speed sensor input, charging generator monitoring, start/stop control
Communication interface: Modbus RTU, CAN bus (J1939 engine communication)
Scalability: Supports external I/O modules and additional operation panels
3. Certification and Standards
Compliant with EN 61010-1 electrical safety standard
Compliant with EN 61000-6-1/2/3/4 electromagnetic compatibility standards
UL/cUL certification (applicable to UL508 listed generator components)
Protection level: IP52 (standard), optional IP65 (with sealing gasket and additional buckle)
Installation requirements and mechanical dimensions
1. Installation method
AGC-100 is designed for embedded installation on the front of the panel. The standard configuration comes with 8 fixed buckles to achieve IP52 protection level. If IP65 protection is required, an optional L (including 12 buckles and gaskets) must be ordered.
2. Panel opening size
The size of the panel opening is:
Height: 151.00 mm (+1.00 mm)
Width: 211.00 mm (+1.00 mm)
The imperial unit is 5.94 inches x 8.31 inches (+0.04 inches)
3. Tightening torque
Partial torque
Panel door installation 0.15-0.20 Nm (1.4-1.8 lb in)
Plug terminal 0.5 Nm (4.4 lb in)
AOP-1/AOP-2 panel installation 0.7 Nm (6.2 lb in)
Sub-D connector screw 0.2 Nm (1.8 lb in)
DC-DC converter terminal 0.5 Nm (4.4 lb in)

Terminal definition and functional description
The AGC-100 is equipped with multiple terminal blocks at the rear, including power supply, digital input, analog input, speed input, relay output, voltage and current measurement, communication interface, etc.
1. Power and status output (terminals 1-4)
Terminal functional technical parameters
1. Positive pole of power supply 6-36 V DC (UL/cUL: 7.5-32.7 V DC)
2. Negative GND of power supply
3-4 state output/configurable 1 A @ 24 V DC/V AC, resistive load
Terminal 3-4 is the output of the microprocessor watchdog, and the relay is engaged during normal operation; Relay release in case of power failure or microprocessor malfunction.
2. Multi functional input (terminals 5-8)
Terminal Function Description
5 common terminals for terminals 6-8
6 multifunctional inputs 1 can be configured as 4-20mA input, digital input Pt1000
7 Multi functional inputs 2 Same as above
8 Multi functional inputs 3 Same as above
These inputs can be configured as remote alarm suppression, operation mode switching, analog monitoring, or temperature sensor inputs.
3. Digital input (terminals 9-15)
Terminal Function Description
9 common end for terminals 10-15
10-15 digital input 1-6 12/24V DC bidirectional optocoupler, configurable
Digital input can be used for emergency stop, start enable, operation feedback, mode selection, alarm confirmation and other functions.
4. Speed input (terminals 16-18)
Terminal Function Description
16 RPM input (MPU) magneto electric speed sensor (2-wire)
17 RPM-GND speed sensor common terminal
18 RPM input (W/L) magneto electric, PNP, NPN or charging generator W terminal input
The speed input supports various signal sources such as magneto electric sensors, Hall effect sensors, and charging generator W terminals.
5. Relay output (terminals 19-27)
Terminal Function Contact Capacity
19 Public end (emergency stop) -
20 Emergency stop input and common terminal -
21-23 relay output 1-3 2 A @ 30 V DC/V AC
24-25 relay output 4 8 A @ 30 V DC/V AC
26-27 relay output 5 8 A @ 30 V DC/V AC
The relay output can be configured as: running coil, stopping coil, starting preparation, starting motor, closing, opening, alarm horn, status OK, etc. Supports dual system engines (independent operation coil and stop coil).