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


EX) Combined with QLLS100N4
Example of a Pokayoke (error-proofing) configuration:















