ABB 07 TR 85 Procontic Composite Module

The 07 TR 85 combines digital inputs and relay outputs in one module. This composite unit saves valuable rack space in Procontic systems. It handles both field signal reading and actuator control tasks.

Key Technical Specifications

Physical Dimensions and Component Layout

This module measures 16.0 cm in length and 9.0 cm in width. Its total height reaches 5.5 cm including both terminal blocks. 07 TR 85 weighs 0.28 kg for DIN rail mounting. You will find 64 discrete components on a four-layer PCB.

Moreover, the module integrates a 220 µF bulk capacitor bank. This bank filters noise on the 24V supply for both input and output circuits. It also provides hold-up during short power interruptions.

Input Channel Characteristics

Each of the 4 inputs uses an optocoupler for signal isolation. The optocoupler separates field wiring from the internal 5V logic. Each input draws only 7 mA from the field supply. A 2 ms filter debounces noisy switch contacts effectively.

Output Channel Design and Protection

Each of the 4 outputs uses a mechanical relay for load switching. The relay contacts handle 5A at 250V AC or 30V DC. Each relay provides Form C (SPDT) contacts for flexible wiring. LED indicators show the real-time status of each input and output.

Connector Interface and Field Wiring

Two separate 10-pin screw terminal blocks accept field wiring. One block handles all 4 input connections with a common supply. The other block manages 4 outputs with individual contact terminals. LED indicators sit above each channel for visual status monitoring.

Typical Application Scenarios

You can deploy 07 TR 85 in ABB Procontic systems with limited rack space. It also works well for small machines needing both inputs and outputs. This module reads pushbuttons and sensors while driving small actuators. Its composite design suits compact control panels efficiently.