
|
Manufacturer |
Foxboro |
|
Part Numbers |
RLY4 2500M/RLY4/XXXXX/XXXXXX |
|
Series |
2500 |
|
Product Origin |
USA |
|
Payment |
T/T |
|
Condition |
New |

Overview
The AO2 2500M/AO2/XXXXX/XXXXXX is a two-channel isolated analog output module. It provides two independent analog output channels with high accuracy (±0.05%) and a wide selectable range (including 0-10 V and 4-20 mA) for harsh industrial environments.
This analogue output module provides two isolated analogue output channels. Each output may be independently configured for current or voltage mode. The module can be optionally fitted with disconnects to allow isolation of an individual output to allow work on the individual loop to continue safely
|
No. of Channels |
2 |
|
Current output |
-0.1 to 20.5mA; 10V dc max compliance with total burden less than 500Ω |
|
Voltage output |
0 to 10V dc; 20mA max compliance with total load greater than 500 ohms -0.5 to 10.5 V dc; 20mA max compliance with total load greater than 1500Ω |
|
Resolution |
Better than 1 part in 10,000 (15 bit typical) |
|
System Isolation |
Reinforced, 264 V AC |
|
Channel Insulation |
Functional, 264 V AC max |
|
Current consumption |
120mA max |
2500 Unit Controller
High performance, high accuracy, high functionality in an I/O system that provides cost effective access to a wide range of advanced functions including PID control with auto tuning and gain scheduling.
Designed to communicate with Modbus RTU™, Profibus™, DeviceNet™ or Modbus TCP/IP masters, it can be used for signal conditioning, alarm monitoring, remote data acquisition or devolved control, for systems such as the Eurotherm Visual Supervisor, PC based SCADA packages and PLC’s.
Eight PID blocks, provide an extensive range of control strategies. Each block offers one-shot auto tuning to optimise control performance without the need for specialist knowledge. Every PID block may be a Single PID, Cascade, Ratio or Override controller, each providing the choice of analogue, time proportioned or valve position output.
Six base sizes are available to take from 2 to 16 I/O modules each. Up to 16 bases may be daisy chained to provide acquisition and multiloop control solutions with up to 128 loops.
DIN rail mounting allows the 2500 to be located where the control action is required, minimising the cost of the cable used, as only the communications need be taken to the User Interface. The 2500 may also be mounted on part of the machine, saving the cost of centralised control cubicles.
A friendly Windows configurator package, ‘iTools’ is used to set up the 2500. ‘iTools’ parameterises and commissions the I/O points, the Toolkit and PID function blocks and interconnects the different variables, alarms, function blocks and I/O. ‘Toolkit blocks’ provide local combinational logic and mathematical calculation.
MECHANICAL INSTALLATION
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1 |
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2 |
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3 |
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FAQ
|
Q |
How does the Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX optimize relay switching performance across both AC and DC load conditions? |
|
A |
The Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX features four relay outputs (three normally open and one changeover), supporting switching capacities of up to 2 A at 240 V AC and 2 A at 50 V DC (resistive) for versatile industrial control applications. |
|
Q |
What engineering characteristics enable the Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX to achieve exceptional relay endurance in mission-critical environments? |
|
A |
The Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX utilizes AgCdO relay contacts, providing a mechanical life exceeding 10 million operations under rated conditions and more than 600,000 operations at 250 V AC, 2 A RMS. |
|
Q |
Why is the Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX well-suited for electrically isolated industrial automation architectures? |
|
A |
The Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX incorporates reinforced 264 V AC system isolation and 264 V AC functional channel insulation, enhancing electrical separation, equipment protection, and operational reliability. |
|
Q |
Which protective design features are integrated into the Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX to improve operational safety and equipment longevity? |
|
A |
The Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX is equipped with a 3.15 A, 20 mm ceramic time-lag (T) fuse, offering dependable overcurrent protection while safeguarding the relay circuitry during transient operating conditions. |
|
Q |
How should engineers evaluate load de-rating when deploying the Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX in applications with inductive or complex loads? |
|
A |
The published ratings for the Foxboro RLY4 2500M/RLY4/XXXXX/XXXXXX are based on resistive loads. For inductive, capacitive, or other complex load profiles, additional de-rating should be applied to maintain optimal relay performance, switching reliability, and service life. |
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