Wireless Error Proofing (RF) Systems
Wireless RF error-proofing systems monitor, verify, and validate every assembly step — guiding operators and locking out errors without cabling the workstation.

The Entorquer-KVL (TQ202 / TQR202USB) is our simplest, most efficient wireless control module for cordless clutch shut-off tools — engineered for seamless PLC integration via I/O, with effortless pairing, secure activation control, and precise feedback, all in a compact, easy-to-maintain form.
Application fields
- Automotive manufacturing
- Industrial assembly
- Error-proof torque applications
- Wireless control of cordless tools
- Position-based tool enabling/disabling
- Data monitoring and process automation
Key features
Plug-and-play
Modules replaceable in under a minute for minimal downtime.
Simple pairing
Pair by pressing the receiver button and inserting the battery.
Dual operating modes
Normal (active unless disabled) and Disabled (default — only the PLC enables).
Sleep mode
Powers down during inactivity, waking instantly on movement.
Link mode
Tool operates only within a pre-defined zone; disabled outside it.
Process flow — automotive assembly line
A typical line sequence — the tool is enabled only at the right station, for the right number of tightenings.

1 · Waiting for the vehicle
The tool stays disabled by default; the line PLC prevents premature use and unintended damage.
2 · Position detection & enabling
As the vehicle reaches the workstation, the PLC enables the tool within a predefined operational area (adjustable in software).
3 · Tightening
The operator tightens the fasteners; OK / Not-OK / Reverse signals go to the PLC in real time. After the assigned number of tightenings (e.g. 5), the tool auto-disables.
4 · Next assembly stage
The tool stays inactive until the PLC re-enables it for the next assembly task.
Connectivity & control
- I/O-based PLC integration — inputs for enable/disable, outputs for OK, NOK and Reverse
- Wireless range control to define your operational boundary in software
- Customisable control logic tailored to your production line
Benefits
Safety
Prevents accidental tool activation outside designated zones.
Efficiency
Rapid task switching with real-time status monitoring.
Precision
Tightening done only when required, improving accuracy.
Modularity
Easy tool replacement and configuration.
Custom solutions
Custom development available to integrate with your tightening data system.
Frequently asked
What does wireless error proofing do?+
It wirelessly enables or disables cordless tools based on position and process state via the line PLC — so a tool can only be used at the right station, in the right sequence, with OK/NOK/Reverse feedback in real time.
How does it integrate with our line?+
Through I/O-based PLC integration: inputs control enable/disable and outputs report OK, NOK and Reverse signals. The operational zone is defined in the configuration software.
Can the logic be customised?+
Yes — control logic and wireless range are configurable, and custom development is available to integrate with your tightening data system.
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