Chapter 6 Description of Operations
PAGE 6-58
D-No.005 After Fastening Operation Standard setting: 000000
*****1: 1 Pulse Reverse
・After the end of fastening, the torque is reversed at the D-No. 121 [1 Pulse Reverse Torque High
Limit]. The 1 Pulse Reverse is performed at the D-No. 410 [1 Pulse Reverse Speed] for the
D-No. 316 [1 Pulse Reverse Time].
****1*: End Slope (priority given to Torque Recovery)
・The reaction force of the tool at the end of fastening is suppressed.
Apply a current limit of 2/3 times the current at the end of fastening.
The current limit is decreased so that 200ms later, it is 0% and fastening is stopped.
****1*: Torque Recovery
･ After the target is reached, the standard torque is maintained for the D-No. 315 [Torque Recovery
Time]. The fastening speed during execution of the torque recovery is the D-No. 404 [3rd
Speed].
***1**: Servo Lock (Hold)
･ At the end of operation, the motor is locked to fix the top to prevent rotation of the tool. However,
if a backlash occurs in the gear part or socket, etc., rotation is performed within ranges that
include the backlash. The servo lock function is also executed when a reverse operation
according to the REVERSE signal.
･ The servo lock can be released by turning the PLC I/O input signal “START,” “RESET,” or
“BYPASS” to “ON” or “STOP” to “OFF”. It can also be monitored by the fastening result mode
D-No. 16 “Servo Lock Flag” of the indicator.
****1*: Recovery Pulse (priority given to Torque Recovery)
・A retightening operation after fastening is performed by pulsing.
Pulsing operation cycles at the D-No. 551 [Recovery Pulsing Speed] are executed for the number of
times defined by the D-No. 550 [Recovery Pulsing Count].
【Precautions on the After Fastening Operation】
・“End Slope” and “Recovery Pulse Operation” are not performed when the “Torque
Recovery” is effective. Only the” Recovery Pulse Operation” is performed when both
“End Slope” and “Recovery Pulse Operation” are effective.
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