Chapter 6 Description of Operations
PAGE 6-60
Torque
D-No. 100 Calibration Torque [N･m]
Setting range: 70% ~ 120% of the standard calibration torque of the tool
The calibration torque value of the connected tool is set. In a case where a socket or offset gear,
with which a load is applied to the tool top, is connected or in a case where, due to the workpiece
characteristics, the indicated fastening result value differs from the result obtained by a fastening
torque tester, etc., the fastening torque can be corrected by the setting of the calibration torque.
Changed calibration torque =
Measured torque (tester result) ÷ standard torque × Current calibration torque
Example: In the case of:
D-No. 100 [Calibration Torque] : 294.2N･m
D-No. 103 [Standard Torque] : 200.0N･m
Measured value (test result) : 210.0N･m
210.0N･m ÷ 200.0 N･m × 294.2N･m = 308.9N･m
And therefore the calibration torque is changed to 308.9N･m.
If the calibration torque is to be changed, calculate the average value from the
fastening results data as the measured torque (as a guideline based on a
statistical standpoint, use 20 as the sample number of the fastening results
data).
･ When the calibration torque is changed, confirm that other torque-related
parameters are lower than the changed calibration torque. The other
torque-related parameters must be set to values lower than the maximum torque
value of the tool and the calibration torque.
D-No. 101 Peak Torque Low Limit [N･m] Setting range: 0 ~ D-No. 100 [Calibration Torque] × 1.1
D-No. 102 Peak Torque High Limit [N･m] Setting range: 0 ~ D-No. 100 [Calibration Torque] × 1.3
The low and high limit values of the fastening torque are set.
When the fastening torque exceeds the peak torque high limit or falls below the peak torque low limit,
the REJECT axis judgment is made.
D-No. 103 Standard Torque [N･m]
Setting range: 0 ~ D-No. 100 [Calibration Torque] × 1.0
The standard torque for fastening is set. This is effective only when D-No. 000 [Fastening Method]
is the torque method.
Example: When 10.0 is set, fastening is executed until the torque value becomes 10.0[N･m].
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