S-67118-B RELIANCE

Reliance S-67118-B Output Module

Brand：RELIANCE Model number：S-67118-B

Country of origin: United States Product weight：0.55kg

HS code：9032899099

Product Details：

Product Dimensions：

Reliance Electric Output Modules, typically part of a larger Programmable Logic Controller (PLC) or Distributed Control System (DCS), serve as the critical interface between the control system's logic and the physical devices it controls in industrial environments. They convert low-power control signals from the PLC's processor into higher-power signals capable of driving various field devices.

Product Details

Functionality:

Signal Conversion: Output modules receive digital or analog signals from the PLC's CPU and convert them into suitable electrical signals (voltage or current) to activate or regulate external equipment.
Actuator Control: They directly control devices such as motors, solenoids, relays, lights, alarms, heating elements, and variable speed drives.
Isolation: Many output modules provide electrical isolation between the control system's low-voltage circuitry and the higher-voltage, noisy industrial environment, protecting the PLC and ensuring reliable operation.

Types:

Generate continuous voltage (e.g., 0-10V, +/-10V) or current (e.g., 4-20mA, 0-20mA) signals to control devices that require proportional control, such as variable frequency drives (VFDs), proportional valves, or servo drives.
Relay Output: Utilizes electromechanical relays to switch various AC or DC voltages and currents. Offers high isolation and flexibility in voltage types.
Transistor/Solid-State Output (DC Sourcing/Sinking): Uses transistors (MOSFETs, IGBTs) to switch DC loads. Known for high switching speeds and long life due to no moving parts. Sourcing outputs provide positive voltage, while sinking outputs provide a path to ground.
TRIAC Output (AC): Uses TRIACs to switch AC loads. Suitable for resistive or inductive AC loads.
Digital Output Modules:
Analog Output Modules:

Product Parameters (General, as specific models vary widely)

Output Voltage:

Digital: Typically 12V DC, 24V DC, 120V AC, 230V AC.
Analog: Typically 0-10V DC, +/-10V DC, 0-20mA, 4-20mA.

Output Current:

Digital: Varies widely, from milliamps for small relays to several amps per point for power applications.
Analog: Typically 20mA (for current outputs).

Number of Channels:

Common configurations include 2, 4, 8, 16, or 32 output points per module.

Switching Frequency (for Digital):

Relay outputs have lower switching frequencies (Hz to tens of Hz).
Solid-state outputs can handle much higher frequencies (kHz).

Resolution (for Analog):

Typically 12-bit, 14-bit, or 16-bit, determining the precision of the output signal.

Isolation:

Often specified in volts (e.g., 500V, 1500V, 2500V) between channels, groups, and logic.

Response Time:

The time taken for an output to switch on or off after receiving a command.

Operating Temperature:

Standard industrial range, typically -25°C to 70°C.

Mounting:

Often rack-mounted within a PLC chassis or on a DIN rail for remote I/O.

Diagnostics:

May include LED indicators for channel status, short-circuit protection, or open-circuit detection.

Product Advantages (Historically relevant for Reliance Electric modules)

Robustness: Reliance Electric modules were known for their rugged industrial design, built to withstand harsh factory environments (vibration, electrical noise, temperature variations).
Reliability: Engineered for consistent and dependable operation, critical for minimizing downtime in automated processes.
Versatility: A range of digital and analog output types allowed for control of diverse industrial devices.
System Integration: Designed to integrate seamlessly with Reliance Electric's PLC families (e.g., AutoMate, Automax) and other control systems.
Ease of Maintenance: Modular design often allowed for hot-swappable modules, simplifying replacement and maintenance.
Diagnostic Capabilities: Onboard LEDs and diagnostic features aided in troubleshooting field wiring issues and module malfunctions.

Important Considerations

Obsolescence: As Reliance Electric products are generally legacy, availability of new modules is limited. Sourcing spare parts or replacements often relies on the secondary market.
Compatibility: Ensure the output module is compatible with the specific PLC or control system it is intended for, including its communication protocol and backplane.
Load Type and Rating: Match the output module's voltage and current ratings to the actual load requirements. For inductive loads, proper snubbers or flyback diodes are crucial to protect the output circuitry.
External Power: Many output modules require external power supplies for their field-side outputs, separate from the PLC's internal power. Incorrect wiring of this power is a common troubleshooting issue.
Wiring Practices: Adhere strictly to wiring diagrams and best practices to prevent damage to the module or connected devices. Proper shielding and grounding are essential in industrial environments.
Relay vs. Solid-State: Understand the pros and cons. Relays offer isolation and switch AC/DC, but have limited life and slower speed. Solid-state outputs are faster, last longer, but may have leakage current and are typically specific to AC or DC.
Application Environment: Consider factors like temperature, humidity, and vibration, ensuring the module's environmental ratings are met.

Product Applications

Reliance Electric Output Modules, like other industrial output modules, were extensively used in:

Manufacturing and Assembly:

Controlling conveyors, robotics, assembly line machinery.
Activating pneumatic or hydraulic cylinders.
Operating solenoid valves for fluid control.

Process Control:

Regulating flow rates, temperatures, and pressures in chemical, oil & gas, and water treatment plants.
Controlling motor speeds through VFDs.
Operating proportional valves.

Material Handling:

Controlling sorters, stackers, and automated storage and retrieval systems.

Power Generation and Distribution:

Controlling breakers, relays, and other switchgear.

Building Automation:

Controlling lighting, HVAC systems, and security devices (though less common now with dedicated building automation systems).

Any Industrial System requiring a robust and reliable interface between control logic and physical actuators.

S-67118-B RELIANCE

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