Overview
The Allen-Bradley 1394-AM04 is a single-axis servo amplifier module from the Bulletin 1394 family of digital servo drives. The 1394-AM04 is a 1394 Servo Drive Axis Module that is part of the 1394 GMC or GMC Turbo system. It is an inverter with no heatsink that converts the DC power supplied by the system module to a variable AC voltage in a 1394 system. One 1394-AM04 axis module is required for every servo motor to run the 1394 system, and one 1394 system consists of 1-4 axis modules.
Key Features
- Slide-and-lock mechanism eliminates up to 100 wire terminals
- 98% efficiency with 2.4/3–4.8/6 kW power dissipation at 380-460 V
- Speed regulation of 0 to 0.05% of base speed at 100% torque load
- Series A/B module interchangeable with 1394C-AM04 Series C axis module
- Compact design optimized for space-constrained panel configurations
- Compatible with 1326AB and 1326AS servo motor families
Technical Specifications
- Input Voltage: 530-680V DC
- Output Voltage: 0-480 VAC, 3-Phase
- Continuous Output Current: 4.5 A
- Peak Output Current: 9 A
- Output Power: 2.4 kW @ 310 VAC and 3 kW @ 390 VAC
- Frequency Range: 0-240 kHz
- Modulation Frequency: 5 kHz ±10%
- Efficiency: 98%
- Capacitance: 110 µF
- Static Gain: 2.6 (rms A/mV)
- Operating Temperature: 0°C to 50°C (ambient)
- Dimensions: 13.78 x 11.02 x 1.97 inches
- Weight: 11.02 lbs
- Series: A/B
- Certifications: UL, c-UL, CE
Typical Applications
Applications include material handling, high-speed packaging, press load/unload and converting. This module supports CNC Interface, SERCOS, and Analog Servo Configurations with direct line connection for 360 and 480 Volts AC 3-phase input power and efficient IGBT power conversion.
Compatibility & Replacements
The 1394-AM04 module is compatible with 1326AS servo motors such as 1326AS-B330H, 1326AS-B420G, 1326AS-B440G, and 1326AS-B460F. The 1394-AM04 belongs to Series A and B but it is interchangeable with the 1394C-AM04 Series C axis module. The module is ideally paired with 1394x-SJT05-x, 1394x-SJT10-x, or 1394x-SJT22-x system modules with corresponding secondary circuit protection devices (1492-CB3-H300, 1492-CB3-H500, or 1492-CB3-H600).










