SDCS-FEX-2A 3ADT311500R1 Field Exciter Board, China SDCS-FEX-2A 3ADT311500R1 Field Exciter Board Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	SDCS-FEX-2A 3ADT311500R1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Dimensions (WxHxD)	12 x 9 x 3.5 cm
Weight	0.5 kg
AC Input Voltage	110 V (-15%) to 500 V (+10%), single phase
AC Input Current	≤ output current
AC Isolation Voltage	600 V
Frequency	Same as DCS converter module
DC Output Current (Armature Converter 25–75 A)	0.3 A to 8 A
DC Output Current (Armature Converter 100–2000 A)	0.3 A to 16 A
Power Loss at Rated IF	≤ 40 W
Output IACT	Uout = 4 V × Iact / Ilim; Ilim = 3 A, 5 A, 7 A, 9 A, 11 A, 13 A, 15 A, 17 A
Terminal X1	Cross-sectional area 4 mm²

Description

The ABB SDCS-FEX-2A 3ADT311500R1 is a high-performance field exciter board specifically designed for DCS400, DCS550, and DCS800 series DC drives. This module integrates rectification, triggering, and protection circuitry into a single card, managing the field conversion and stabilization control of DC motors.

Applications

Steel rolling mills: Used to control the magnetic field strength of large rolling mill motors, ensuring speed accuracy and torque balance during steel processing.

Mining hoisting plants: Integrated into the DC drive systems of winches or conveyors, providing reliable excitation current to support heavy-load starts.

Rubber extrusion plants: Maintain constant process operating parameters through precise magnetic field adjustment in the control systems of internal mixers or extruders.

Automated assembly plants: Provide a unified excitation power solution for complex distributed DC drive systems, improving overall line coordination.

Chemical raw material plants: Used in the drive units of large agitators or centrifuges, leveraging their high reliability to ensure continuous operation in harsh environments.

Maintenance and Troubleshooting

Troubleshooting: If the system reports a loss of excitation, first check if the single-phase input voltage of Terminal X1 is stable. If the feedback signal is abnormal, measure the voltage at the IACT terminal and compare it with the Ilim setting value to quickly determine if the output current is accurate.

Maintenance Recommendations: Regularly check the tightness of the 4 mm² wiring of the X1 terminal to prevent increased contact resistance due to industrial vibration. Due to its extremely low power consumption (only 40W), simply maintaining ambient ventilation is sufficient to ensure the long-term operation of the 0.5kg board.

FAQ

Q: Is the SDCS-FEX-2A 3ADT311500R1 compatible with AC power grids above 500V?
A: Max rated input is 500V (+10%) up to 550V AC; higher levels require a transformer.

Q: How to set output current limit for the SDCS-FEX-2A 3ADT311500R1 for different motors?
A: Select preset Ilim values between 3A and 17A via onboard logic for matching converters.

Q: Does the SDCS-FEX-2A 3ADT311500R1 generate much heat during rated operation?
A: No. It consumes ≤40W under full load and is cooled via cabinet ventilation.

Q: Can the SDCS-FEX-2A 3ADT311500R1 be used with armature converters over 2000A?
A: Standard support is up to 2000A; higher ratings need external excitation units.

Q: Is the 4 mm² requirement for terminal X1 on the SDCS-FEX-2A 3ADT311500R1 strict?
A: Yes. It ensures safe current handling up to 16A and stable electrical performance.