FEC AFC3000, Руководство по эксплуатации оборудования

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Chapter 7 Fastening Instructions
PAGE 7-23
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Torque Recovery
The Torque Recovery function is used when the potential for joint relaxation and interaction exists.
Under this control option, the fasteners are secured to Standard Torque and then held for the
programmed period of time (Torque Recovery Time). This time setting can be between 0.0 - 5.0
seconds. Power is applied to the motor for this duration “holding” torque at the specified Standard
Torque. During Torque Recovery the tool will use 3
rd
Speed as its maximum Speed, but will only
rotate as a result of a drop in the Torque. Torque Recovery is only available in Torque Controlled
Fastening due the fact that the use of Torque Recovery may cause addition rotation (Angle) of the
fastener.
WARNING: The Torque Recovery function will cause the motor to heat up at a rate faster than
normal fastening due to the holding function.
Particular attention to minimize duty cycle is
recommended if using this function or Overload Abnormals (ABN 08-10) may result.
(Premature motor failure could result if prolonged to overload abnormals). Torque Recovery
time should be kept to a minimum for the application requirements.
103:
Standard
Torque
204:2nd Angle
109: 2nd
Torque
203:1st Angle
105: 1st Torque
106: SNUG
Torque
Angle (Time)
1st Time 2nd Time
500 Freerun
Revolutions
401 Freerun Speed
403 2nd Speed
404 3rd Speed
Angle (Time)
1st Time 2nd Time
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Servo Lock
Using this function, the motor rotor is electrically locked at the end of the fastening operation to prevent
rotation of the tool. (External gears, socket and/or socket extensions may experience slight movement
even though the servo lock is enabled due to backlash in the drive connections).
The servo lock function is also executed when a reverse rotation according to the REVERSE signal or
any of the sequence commands: “Reverse 1 to 3” is executed.
Use of this function is usually for positioning applications. (ie. crankshaft position of an engine or for
positioning applications using detection by a proximity sensor, etc.)
See Chapter 8: ‘8-7-3 Fastening Parameters D-N0. 006 After Fastening Operation’ for more detail
315: Torque Recovery Time
Speed
315: Torque Recovery Time
Torque