PLCs, Power Supplies & Others

Primary Function and Application Scope

This dual output module provides two independent analog signal channels for actuator control. It drives proportional valves, positioning cylinders, and variable speed drives with precision. You can deploy this unit in closed-loop pressure and flow regulation systems. Each output channel operates entirely independently with its own configuration parameters. The module converts digital setpoints from the controller into proportional current or voltage signals. This design suits multi-axis motion control and parallel process regulation tasks.

Physical Dimensions and Panel Mounting

The Reliance Electric 45C60 measures 195.2 mm in height and 38.6 mm in width. Its depth reaches 145.8 mm from the front face to the rear terminal block. This unit weighs approximately 0.92 kg, allowing for simple DIN rail installation. You can snap the module onto a 35 mm rail using the integrated locking mechanism. Alternatively, you may secure it with two M4 screws through the mounting ears. The extruded aluminum housing provides effective thermal dissipation and mechanical protection.

Channel Configuration and Signal Ranges

Each output channel offers selectable 4-20 mA or 0-10 VDC signal formats. The Reliance Electric 45C60 delivers 20 mA with a compliance voltage of 15 VDC. The voltage output drives loads up to 2 kΩ with a settling time of 5 milliseconds. You can configure each channel independently using the onboard DIP switches. A green LED illuminates for each active channel to indicate normal operation. The module also provides a 24 VDC auxiliary supply for powering external loop devices.

Resolution and Accuracy Performance

This module achieves a 14-bit resolution across the full output signal range. The overall accuracy reaches ±0.1% of full scale at 25°C ambient temperature. Temperature drift remains within ±50 ppm per degree Celsius for stable performance. The Reliance Electric 45C60 includes a software-calibrated gain and offset adjustment. These adjustments eliminate the need for external potentiometer trimming during setup. The output response time measures 2 milliseconds for step changes in setpoint.

Connection Interface and Wiring Details

A 12-position removable terminal strip accepts wires from 0.2 mm² to 2.5 mm² cross-sections. This strip includes screw clamp terminations for secure and vibration-resistant connections. You will find separate terminals for each channel’s output and return path. The module also provides a shielded ground terminal for reducing electromagnetic interference. Each channel includes a built-in 500 mA self-resetting fuse for short-circuit protection. These features simplify field wiring and reduce installation errors significantly.

Internal Circuitry and Component Inventory

The PCB contains a 16-bit digital-to-analog converter for each independent output channel. You will discover 24 precision resistors with 0.1% tolerance for accurate signal generation. The Reliance Electric 45C60 uses two operational amplifiers for signal conditioning and buffering. A total of 62 discrete components populate the double-sided circuit board. These include ceramic capacitors, ferrite beads, and transient suppression diodes. A dedicated microcontroller manages the communication protocol and diagnostic functions.

Power Consumption and Energy Storage

This module draws 85 mA from a 24 VDC supply during normal operation. The consumption increases to 150 mA when both channels drive full output loads. An internal 330 µF capacitor bank provides energy for a 15 ms ride-through period. This capacitance protects against momentary voltage dips on the supply rail. The unit also incorporates an EEPROM for storing calibration coefficients permanently. This memory retains settings even after a complete power shutdown.

Environmental Ratings and Operational Boundaries

The Reliance Electric 45C60 operates reliably across a temperature range of 0°C to 55°C. It withstands relative humidity levels from 10% to 90% without condensation forming. The enclosure meets IP20 protection standards for finger-safe access. Vibration tolerance reaches 2 G from 10 Hz to 150 Hz in three axes. Shock resistance measures 20 G for 11 milliseconds duration. These specifications support installations in machine tool and printing press environments.

Technical Data Summary

Status Indication and Diagnostic Aids

This module provides individual green LEDs for each channel’s output activity. A red LED alerts you to overtemperature or short-circuit fault conditions. You can perform a loop test using the front-panel test button. This test drives each output to 50% full scale for verification purposes. The module also stores the last five fault events in non-volatile memory.

Details