PLCs, Power Supplies & Others

Precision Refrigeration Control with the TM168DEVCM

This electronic expansion valve driver module offers precise refrigerant flow regulation for HVAC systems. The TM168DEVCM controls EEVs through a unipolar DC voltage output for accurate positioning. It integrates seamlessly with the Modicon M168 platform, enabling centralized supervision of cooling circuits. Furthermore, the module features a dedicated alarm relay for fault detection and system protection. Its compact design supports DIN rail installation within standard electrical cabinets. The TM168DEVCM communicates with the controller via the internal bus for real-time command execution.

Technical Specifications and Operational Parameters

The TM168DEVCM delivers an output voltage of 0 to 24 VDC for valve actuator control. It features a maximum output current of 600 mA to drive the valve coil effectively. The module’s dimensions measure 90 mm in height and 70 mm in depth for space-saving integration. It weighs approximately 0.3 kg, adding minimal mass to your control panel. The unit also provides two auxiliary inputs for feedback sensors or status monitoring. Its operating temperature ranges from -20 °C to 55 °C for diverse environmental conditions.

Installation and Wiring Guidelines

This driver module optimizes superheat control in refrigeration and air conditioning systems. First, mount the TM168DEVCM securely onto the DIN rail within the control cabinet. Then, connect the valve output wires to the designated terminals, ensuring correct polarity. For the auxiliary inputs, use shielded cables to preserve signal integrity in noisy environments. Additionally, wire the alarm relay to a central monitoring system for fault reporting. Finally, configure the valve parameters through the M168 programming software for optimal performance. The TM168DEVCM meets relevant HVAC standards for reliable and safe operation.

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