Georges Renault CVIS II, Operator'S Manual

Page: 51 / 76

6159932410-02
English
51 / 76
TIGHTENING STRATEGIES
5 - ANGLE + TORQUE RATE CONTROLLED TIGHTENING
6 - STRATEGY INCLUDING ADDITIONAL CONTROL (CURRENT)
To make the fastening task even more reliable, it is possible to add a current control to most tightening strategies (torque,
angle, angle+torque, etc.).
This additional control enables you to check the coherence between the value of the torque measured by the torque transducer,
and the current consumed by the motor.
This "current" information varies from one tool to another and is not calibrated against the torque. It is thus necessary to establish
a similarity on an experimental basis for each tool: you must read the value of the maximum current reached at the end of a cycle
and then execute that cycle at least 3 times to define the "minimum current" and "maximum current" value to be programmed.
Spindle stop
IF angle
≥
target angle OR torque > max. torque
OR torque rate < min. torque rate OR torque rate > max. torque rate
Accept report
IF min. torque < final torque < max. torque
IF min. angle < final angle < max. angle
IF min. torque rate < final torque rate < max. torque rate
according to the option selected (mean torque or min./max. torque)
Spindle stop
Stop condition for the tightening strategy
selected
OR current
≥
max. current
Accept report
Accept report condition for the tightening
strategy selected
AND min. current < current < max. current
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