ABB 500TRM02 1MRB150011R1 Terminal Relay Module

ABB 500TRM02 1MRB150011R1 Terminal Relay Module

Module Overview

The ABB 500TRM02 1MRB150011R1 terminal relay module is a standardized signal conversion and control component designed by ABB specifically for industrial automation control systems, belonging to the ABB industrial control product system. This module is characterized by high reliability, compact structure, and flexible adaptability. It is mainly used to achieve the isolation, amplification, conversion, and circuit expansion functions of control signals. It is widely used in PLC control systems, DCS systems, and other automation control scenarios in the fields of power, metallurgy, chemical engineering, intelligent manufacturing, etc. As a key intermediate node in the signal link, it ensures the precise transmission of control instructions and the safe and stable operation of equipment.

Core functions and application value

2.1 Core Functions

-Signal isolation and anti-interference: Equipped with high-efficiency optoelectronic or magnetic isolation units, it can effectively isolate the electrical circuit between input and output signals, suppress electromagnetic interference (EMI), radio frequency interference (RFI), and common mode interference in industrial sites, avoid the impact of interference signals on control circuits, and improve the stability of signal transmission.

-Relay output control: Integrated with high-performance relay components, it can receive low-power control signals (such as DC 24V) output by PLC or controller, and control high-power load circuits (such as AC 220V motor control circuits, solenoid valve circuits, etc.) through the on/off of relay contacts to achieve safe conversion of strong and weak electrical signals.

-Terminal based convenient wiring: adopting standardized spring or screw terminal design, the wiring operation is simple and firm, and can quickly connect with controllers, sensors, actuators and other equipment, reducing on-site installation and debugging time.

-Status indication and fault diagnosis: equipped with LED indicator lights, real-time display of module power status, input signal status, and relay output status, making it easy for on-site operation and maintenance personnel to quickly determine the working status of the module and accurately locate the fault point.

-Loop extension and adaptation: It can serve as an extension unit for the controller output interface, solving the problem of insufficient output points in the controller. At the same time, through standardized design, it can be adapted to ABB and other mainstream brands of automation control equipment.

2.2 Typical Application Scenarios

-Power system: In the secondary circuit of a substation, it is used for PLC to amplify and isolate control signals for circuit breakers and isolating switches.

-Intelligent manufacturing: In the production line, PLC is used to control the start and stop of conveyor belts and robotic arm actuators.

-Chemical industry: signal isolation and transmission between explosion-proof and non explosion-proof areas, controlling the operation of equipment such as reactors and valves.

-Metallurgical industry: stable signal transmission under high temperature environment, used for control circuits of steel rolling equipment and heating furnaces.

-Water treatment system: Control the start and stop of water pumps and solenoid valves to achieve automated control of water quality monitoring and treatment processes.

Key technical parameters

Basic Information

model

500TRM02 1MRB150011R1

Power parameters

Rated working voltage

Usually DC 24V (subject to actual product specifications)

Voltage fluctuation range

DC 18V - 30V， Adapt to fluctuations in power supply voltage on industrial sites

Rated power consumption

≤ 5W (unloaded state, slightly increased when fully loaded)

input parameters

Input signal type

DC switch signal (PNP/NPN optional, subject to specifications)

Input voltage range

DC 24V ±10%

input current

≤ 10mA per channel

output parameters

output type

Relay contact output (normally open/normally closed optional, subject to specifications)

Rated voltage of contacts

AC 250V / DC 30V

Contact rated current

5A (resistive load, inductive load needs to be reduced in capacity for use)

Number of output channels

Typical is 8 channels (subject to actual product)

environmental parameters

Operating Temperature

-25 ℃~+60 ℃, suitable for high and low temperature industrial environments

relative humidity

5%~95% (no condensation)

Protection level

IP20 (module body), to be installed inside the control cabinet for use

isolation performance

isolation voltage

Input output power supply ≥ 2.5kVrms, in compliance with industrial isolation standards

mechanical parameters

Installation method

35mm DIN rail installation, compatible with standard control cabinet installation specifications

Installation and usage precautions

4.1 Installation specifications

-The module needs to be installed in a well ventilated, dust-free, and non corrosive gas control cabinet, avoiding direct sunlight and rainwater erosion.

-Fixed with a 35mm standard DIN rail, at least 5mm of upper and lower heat dissipation space should be reserved during installation to avoid close contact with high heat generating devices (such as power modules).

-Before wiring, it is necessary to confirm that the power has been cut off, and strictly distinguish the power end, input end, and output end according to the module terminal diagram to avoid module damage caused by misconnection.

-If the output circuit is connected to an inductive load (such as a motor or solenoid valve), a freewheeling diode should be connected in parallel at both ends of the load to suppress the impact of reverse electromotive force on the relay contacts.

4.2 Use and Maintenance

-Before putting the module into use, a multimeter should be used to check whether the power supply voltage is within the rated range and whether there is a short circuit in the input and output circuits.

-During operation, the working status of the module is observed through the LED indicator light: a constant power light indicates normal power supply, an input light indicates signal input to the corresponding channel, and an output light indicates relay action.

-Regularly (recommended every 6 months) inspect the module, including the tightness of the wiring terminals, the wear of the contacts, and whether there are any abnormalities such as bulging or burning on the appearance of the module.

-If the module malfunctions, the power should be cut off first, and the input signal, power supply voltage, and load circuit should be checked to confirm that there are no external abnormalities before determining whether the module itself is damaged. When replacing, a module of the same model and specification should be selected.

Product advantages

-High reliability: ABB industrial grade components are used and undergo strict environmental adaptability testing (high and low temperature, vibration, impact, etc.), with a long mean time between failures (MTBF), meeting the continuous operation requirements of industrial sites.

-Compact design: With a miniaturized structure, more channels of signal control can be achieved within a limited control cabinet space, improving space utilization.

-Flexible adaptation: Compatible with signal formats from mainstream PLC brands such as ABB, Siemens, Schneider, etc., without the need for additional adapters, reducing system integration costs.

-Convenient operation and maintenance: Clear status indication and standardized wiring design simplify installation, debugging, and troubleshooting processes, reducing operation and maintenance workload.