Chapter 1 Outline
PAGE 1-3
1-2 Features
The Handheld Nutrunner is a flexible fastening tool equipped with a compact, high-performance
servomotor developed especially for this product. Like the usual high-performance nutrunner system, it
is designed to accommodate various tool models and provide useful functions for error proofing, data
management, data communication, etc.
☆ Compact Design
The controller operates on single-phase 100V ~ 240V, making installation work related to the
primary power source easy.
☆ Fastening Functions
Fastening can be performed by the torque method or the angle method. An angle monitor and a
torque rate monitoring function are provided as functions for error proofing. A fastening counting
function can be used as an additional error proofing method.
☆ 64 Programmable Parameter Sets
64 selectable parameter sets are available for ‘on-the-fly’ model/torque setting changes
Work (parameter) selection can be performed by external signals.
Controller memory is non-volitile - a backup battery is not required, thus no need to worry about
problems such as dead batteries, battery maintenance, etc.
☆ Data Communication
An RS-232C interface is incorporated to enable data communication with external devices.
A dedicated Ethernet connector that enables communication with a PC (for dedicated software) is
provided. Connectors enabling sending of result data to a PLC or other external device are also
provided.
Optional fieldbus interfaces that allow fastening data to be sent of over the same fieldbus connection
to the PLC, can be installed. (ie. Ethernet I/P, Devicenet, Profinet, CCLINK, etc.)
☆ Motor
A permanent magnet High Speed DC motor provides for improved fastening control. The sealed
design of the motor provides greater protection from contamination without generating excess heat.
The resolver is uniquely designed to withstand harsh environments and provide high-resolution
control / angular feedback signals.
☆ Preamplifier
Quality control of the tool torque transducer is accomplished electronically (digitally) through the
EEPROM (Electrically Erasable Programmable Read Only Memory) in the preamplifier. During
factory setup of the torque transducer, the unit is Dead Weight and Dynamically tested against
Standards that are certified and traceable to the National Institute of Standards and Technology.
The resultant data is then programmed into the preamplifier where it is stored on non-volatile
EEPROM. The preamplifier also contains the “Smart Tool ID” system that allows automatic tool
recognition and protects against misapplication of tools onto the wrong controller or set-up.
☆ Self-Check Function
Each time a fastening operation starts, a calibration check of the torque transducer is performed to
check functionality including those of the controller and the cables to prevent abnormal fastening.
☆ Abnormal Condition Display
When an abnormality occurs, the corresponding abnormal state No. is displayed on the front panel.