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Use accurate torque controls to improve quality! Case examples can be found in torque handbook 8

Count checker

CNA-4mk3

Count checker
RoHS marking

Prevents human tightening errors (Pokayoke)

Digital

LS Signal Input

Judgement

The error-proofing (Pokayoke) counter controls the number of tightening operations to prevent human tightening errors.

EX) Combined with QLLS100N4

Example of a Pokayoke (error-proofing) configuration:

Application

  • For tightning count verification, and production management.

Features

  • Can be connected to LS (Limit Switch) torque wrenches for count management.
  • Up to four LS torque wrenches can be connected, and each can be set with a different number of bolts to tighten. So up to four operators can perform tightening tasks at the same time.
  • From one unit, the numbers of four different types of bolts to be tightened can be set.
  • Bolt counting can be set 0-99 pcs for each torque wrench, and count down upon receiving a signal.
  • OK/NG judgement signal can be transferred to external device through relay output.
  • Connected with LS type torque wrenches (sold separately), CNA4-mk3 establishes error-proofing system.

Demonstration video

Product info: CNA-4mk3 Pokayoke (error-proofing) counter

Specifications

COUNT DISPLAY 16×32 dot-matrix LEDs
OK/NG JUDGEMENT DISPLAY 30×25 square display lamp (commonly used for OK/NG)
OK:Blue lamp turned on
NG:Red lamp blinking+Buzzer sounds(4 patterns)
WORK NO. SELECTION DISPLAY 1-digit 7-segment LED
COUNT INPUT Contact input x 4
MAX. TIGHTENING NUMBER OF BOLTS 99 counts
MAX. NUMBER OF WORKS 8 sets
OK/NG JUDGEMENT SETTING Preset judgement
END input judgement
Automatic judgement (0 to 300 seconds in steps of 1 second)
OUTPUT FUNCTION OK/NG output (Relay contact output rating: 30 V DC, 1 A, 125 V AC, 0.3A)
INPUT FUNCTION SELECT input×4 START input END input
RESET input WORK SENSOR input
TIMER FUNCTION SETTING Double count prevention timer (0 to 10 seconds in steps of 0.1 second)
Automatic reset timer (0 to 60 seconds in steps of 1 second)
Interval warning timer (0 to 99 seconds in steps of 1 second)
SETTING METHOD Special-purpose application software (USB communication), key operation
WORKING TEMPERATURE RANGE -10~40 [℃ ]
ELECTRICITY CONSUMPTION [W] Below 10
POWER SUPPLY AC[V] 100~240V±10% 50/60Hz
WEIGHT Approx. 400g
   

Dimensions

◆ How to order

[Tohnichi] [Model] Please specify.

[EX.] CNA-4mk3

◆ Things to remember when ordering

R-FH256 receiver board cannot be built into CNA-4mk3.

Download

Product Catalog

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Registration
2D CAD (DXF)

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3D CAD (IGES)

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Parts List

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Online Part Search System
How to Use
[March 2019 Version] Tohnichi’s Torque Engineering Seminars, ready to provide positive results in the workplace right away.

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Technical Data
4. Tightening Reliability

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[March 2019 Version] Everything from torque controls to Tohnichi’s Tightening Guarantee System

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