ABB FM9925A-E

Operational Parameters

Power Supply: 24V DC power supply, with a tolerance range of around ±10%.

Signal Handling Ranges: 0 - 10V DC and current signals in the range of 4 - 20m

Current Rating: 50A

Operating Temperature: -20°C to +60°C

Frequency Range: 50/60 Hz

Protection Class: The relay has an IP20 protection rating

Communication Interface: It supports Modbus RTU communication protocol

Product Features

Multi Signal Type Processing:It can process multiple types of signals. It supports unmatched processing capabilities of mixed analog and digital signals simultaneously.

Reliable in Harsh Environments:To lerating many stressful exertions, it has high resistance to electrostatic discharge and electromagnetic interference.In factory conditions with a variety of motors, generators or high - voltage equipment that can produce strong electromagnetic interference,ABB FM9925A-E can operate steadily without signal distortion or malfunction. Its ESD3 protection protects the internal circuitry against sudden electrostatic charges, thus providing long - term reliability.

Integration with PLC Systems:The ABB PLC control systems and supports integration with all ABB control system components. ABB FM9925A-E is responsible for sending processed data in real time to the PLC's central processing unit, which then uses that data to make decisions based on the input signals it receives.

Overcurrent Protection: The relay evaluates the current levels within the circuit. When the current exceeds the value set earlier, it trips the circuit, which protects the connected equipment from overload or any other damage.

Overvoltage Protection:Compared to other solutions, ABB FM9925A-E can operate across a wide voltage range with options typically ranging from 8V~20V.

Installation

Mounting:This ABB FM9925A-E is designed to be mounted in Industrial Control Cabinets. It typically features a slim form - factor and can be installed on a common DIN rail.

Securement: The module is fastened using the supplied mounting brackets and screws Ensure screws are tightened sufficiently to prevent vibration induced disconnections in use.

Derivation of connections: use shielded cables to secure the right connection for analog signals. Connect the positive and negative pins of the analog sensors to the power and ground of the module, respectively. If the signal is a digital signal connect the signal wires as needed based on the logic level.

Application range

Power Distribution:in electrical distribution systems, relay is utilized to safeguard transformers, circuit breakers, and switchgear against overcurrent, under-voltage, and short-circuit faults, providing stable and safe power distribution.

Industrial Automation:ABB FM9925A-E can find it in factories and manufacturing plants, where they are used to protect motors, drives, and automation equipment from electrical faults, which helps prevent downtime and equipment damage.

HVAC Systems : Relay protects the crucial components of HVAC systems, which require protection against overloads, under voltage and short circuit.

Renewable Energy: The ABB FM9925A-E is commonly employed in solar power systems, wind farms, and other renewable energy applications to monitor and safeguard the electrical circuits, ensuring stable energy production and preventing damage to connected equipment.

Data Centers: In data centers where power out is most critical, relay protects sensitive IT equipment from electrical failure and power surges.

Commercial and Residential Infrastructures: The relay is used in commercial and residential infrastructures to shield these buildings against faults and power breakdown.

Troubleshooting

Relay Does Not Trip:Check if Relay is getting stable voltage in the required range.

Check wiring: Make sure that all wiring is properly connected and secure; loose or incorrectly terminated wiring can keep the relay from identifying faults.

Verify settings of configuration: If the trip thresholds are set up incorrectly or if the relay is configured wrong it may not operate as desired. Check parameters for relay trip values.

Adjust time delay settings: If the connected circuits are faulty, that may cause any relay to trip. Measure the current flowing through the contacts and make sure it is within the rated capacity of the relay.

Investigate connected equipment: In the case of the relay being used to protect a machine or motor, investigate whether a fault has occurred in these devices that may cause the trip.

Set point and time settings: If the relay is tripping too early, or too late, adjust the setting so that very transient faults or fluctuations do not lead to false trips.

Troubleshoot External Sensors: In case of external sensors used by the relay, check for their proper calibration.

Inspect communication cables:Check communication cablesCheck to see whether cables are securely connected and not damaged in any way that would impede the transmission of signals.