Description
Designed for high-accuracy temperature monitoring within the Omron Sysmac platform, the NX-TS2101 serves as a 2-channel thermocouple temperature input module. This unit integrates into the NX Series I/O system, enabling precise thermal measurements for applications requiring tight temperature regulation. It supports the direct connection of multiple industrial thermocouple types, converting sensor inputs into digital values for real-time control.
The module features channel-to-channel isolation to prevent electrical interference and ground loops across process zones. Equipped with a high-density 16-point screwless push-in clamping terminal block, it simplifies field wiring and reduces installation times. Communication and synchronization are handled via the backplane, supporting free-run refreshing to maintain consistent signal updates.
Features
- Two independent thermocouple input channels.
- Broad thermocouple sensor support including K, J, T, E, L, U, N, R, S, B, WRe5-26, and PLII types.
- High resolution of 0.1 degC maximum for standard sensors (0.2 degC maximum for R, S, and W types).
- Fast conversion speed of 250 ms per unit.
- Integrated transformer and photocoupler isolation between input circuits and the NX bus, as well as between individual input channels.
- Screwless push-in clamping terminal block containing 16 connection terminals.
- TS status indicator for clear operational diagnostics.
Applications
- Plastic extrusion and injection molding thermal control systems.
- Industrial ovens, kilns, and heat treatment furnaces.
- Packaging machinery requiring precise heat sealing profiles.
- Chemical processing and reactor thermal monitoring.
- Food processing pasteurizers and storage systems.
Technical Specifications
Manufacturer
| Omron |
Part Number / Model
| NX-TS2101 |
Product Type
| Temperature Input Unit (Thermocouple) |
Number of Inputs
| 2 points |
Supported Sensor Types
| K, J, T, E, L, U, N, R, S, B, WRe5-26, PLII |
Conversion Time
| 250 ms / Unit |
Resolution
| 0.1 degC max. (0.2 degC max. for R, S, or W types) |
I/O Refreshing Method
| Free-Run refreshing |
Absolute Maximum Rating
| +/-130 mV |
Input Impedance
| 20 kOhm min. |
Input Disconnection Detection Current
| Approx. 0.1 uA |
Warm-up Period
| 30 minutes |
Isolation Method
| Power: Transformer, Signal: Photocoupler (between inputs, and between inputs and NX bus) |
Insulation Resistance
| 20 MOhm min. between isolated circuits (at 100 VDC) |
Dielectric Strength
| 510 VAC between isolated circuits for 1 minute (leakage current 5 mA max.) |
I/O Power Supply Method
| No supply |
NX Unit Power Consumption
| 1.25 W max. (connected to CPU or Comm Control Unit); 0.90 W max. (connected to Comm Coupler Unit) |
Current Consumption from I/O Power Supply
| No consumption |
Dimensions
| 12 (W) x 100 (H) x 71 (D) mm |
Weight
| 0.07 kg |
Connections and Interfaces
| Terminal Configuration |
Function Description |
| Thermocouple Channel 1 (TC1) |
Positive and negative thermocouple wire connection points |
| Thermocouple Channel 2 (TC2) |
Positive and negative thermocouple wire connection points |
| Cold Junction Compensation (CJC) |
Internal circuit references for cold-junction compensation |
| NC Terminals |
No Connection (unused terminal allocations) |
Installation Guidelines
- Mount the unit on a standard 35 mm DIN rail alongside compatible NX Series CPU or communication coupler units.
- Ensure correct thermocouple polarization when inserting leads into the screwless clamping terminals.
- To achieve the stated conversion accuracy, allow the module to warm up for at least 30 minutes after power-up.
- Route thermocouple extension cables away from high-voltage motor cables and power lines to reduce electromagnetic noise interference.