DDK HFC3000II, Instruction Manual

Page: 139 / 216

Chapter 6 Description of Operations
PAGE 6-71
(6)
Speed
・
The minimum tool rotation speed and the maximum tool rotation speed differ
according to the tool model.
Please refer to “Tool Models” regarding the allowed input range.
D-No. 400 Initial Speed [rpm]
Setting range: Minimum tool rotation speed to maximum tool rotation speed
The speed for impact relaxation, fitting of the bolt and socket, etc., at the start of fastening is set.
Operation at the initial speed is executed during D-No. 310 [Initial Time].
D-No. 401 Freerun Speed [rpm]
Setting range: Minimum tool rotation speed to maximum tool rotation speed
The speed for high-speed rotation after the end of D-No. 310 [Initial Time] is set. Rotation at the
freerun speed is performed for D-No. 500 [Freerun Revolutions] or until D-No. 310 [Slowown Start
Torque] is attained.
D-No. 402 1st Speed [rpm]
Setting range: Minimum tool rotation speed to maximum tool rotation speed
The speed for operation between the operations at D-No. 401 [Freerun Speed] and D-No. 403 [2nd
Speed] is set. Rotation at the 1st speed is performed from the detection of D-No. 104 [Ramp Down
Start Torque] to the detection of D-No. 105 [1st Torque] or from the detection of D-No. 104 [Ramp
Down Start Torque] to the detection of D-No. 203 [1st Angle].
* If D-No. 105 [1st Torque] or D-No. 203 [1st Angle] is attained during the operation at D-No. 401
[Freerun Speed], the 1st speed is not used and switching to D-No. 403 [2nd Speed] is performed.
D-No. 403 2nd Speed [rpm]
Setting range: Minimum tool rotation speed to maximum tool rotation speed
The speed from the 2nd step onward is set. This is the speed after detection of D-No. 105 [1st
Torque] or D-No. 203 [1st Angle].
* The slower the 2nd speed, the better the fastening accuracy.
D-No. 404 3rd Speed [rpm]
Setting range: Minimum tool rotation speed to maximum tool rotation speed
The speed from the 3rd step onward is set. This is the speed after detection of D-No. 106 [2nd
Torque] or D-No. 204 [2nd Angle].
* The slower the 3rd speed, the better the fastening accuracy. Also, if the 3rd speed is not to be
used, set the same value as D-No. 403 [2nd Speed].
Caution
S0140185-H