Chapter 6 Fastening Operation
PAGE 6-69
Time
D-No. 310 Initial Time [sec] Setting range: 0.0 ~ 999.9
Setting of Initial time can be used as a slower rpm to aid in socket / fastener engagement, reduce
initial engagement shock, etc., at the start of fastening. Operation at D-No. 400 [Initial Speed] is
executed during the initial time or during D-No. 500 [Freerun Revolutions].
When “0.0” is set as the initial time, operation is started at D-No. 401 [Freerun Speed]. When “0.0” is
set as D-No.500 [Freerun Revolutions], operation at the initial speed is executed for the initial time
and thereafter, operation at the 1st speed is executed.
D-No. 311 1st Time Low Limit [sec] Setting range: 0.0 ~ 999.9
Sets the value of the 1
st
time low limit until D-No. 105 [1st Torque] or D-No. 203 [1st Angle] is attained
from the start of fastening. If the time falls short of the 1st time low limit, a REJECT judgment is made.
D-No. 312 1st Time High Limit [sec] Setting range: 0.0 ~ 999.9
Sets the value of the 1
st
time high limit until D-No. 105 [1st Torque] or D-No. 203 [1st Angle] is
attained from the start of fastening. If the 1st time high limit is exceeded, a REJECT judgment is
made.
D-No. 313 2nd Time Low Limit [sec] Setting range: 0.0 ~ 999.9
Sets the value of the 2
nd
time low limit until D-No. 103 [Standard Torque] or D-No. 202 [Standard
Angle] is attained from D-No. 105 [1st Torque] or D-No. 203 [1st Angle].
If the 2
nd
time falls below the 2nd time low limit, a REJECT judgment is made.
D-No. 314 2nd Time High Limit [sec] Setting range: 0.0 ~ 999.9
Sets the value of the 2
nd
time high limit until D-No. 103 [Standard Torque] or D-No. 202 [Standard
Angle] is attained from D-No. 105 [1st Torque] or D-No. 203 [1st Angle].
If the 2nd time high limit is exceeded, a REJECT judgment is made.
D-No. 315 Torque Recovery Time [sec] Setting range: 0.0 ~ 5.0
After Standard Torque is reached, standard torque is maintained for the duration of Torque Recovery
Time. (May be used to remedy cases where torque relaxation after fastening is occurring)
* Typically, this is set to 0 sec.
Note: Overuse use of this may generate an overload abnormal (Abn.08-10) if motor duty
becomes excessive for the application / cycle time used. If Abnormals occur, reduce the torque
recovery time.
D-No.316 1 Pulse Reverse Time [sec] Setting range: 0.0 ~ 9.99
Time used for D-No. 006 [After Fastening Operation]: “1 Pulse Reverse.”
“1 pulse reverse” is used to help alleviate sockets that lock-up on fasteners providing a means to
‘free’ the socket without backing out the fastener.
D-No. 408 Ramp Up Time [sec] Setting range: 0.1 ~ 5.0, Default setting: 0.5
Sets the time constant for acceleration from zero speed to the maximum speed of a tool in the
fastening operation.
･ Adjusts the speed profile from the start of fastening (Start signal “OFF” ￫ “ON”) to reach the
programmed speeds of D-No. 400 “Initial Speed” or D-No. 401 “Freerun Speed.”
D-No.409 Ramp Down Time [sec] Setting range: 0.0 ~ 5.0, standard setting: 0.5
Sets the time constant for deceleration from maximum speed to zero speed of a tool upon reaching
D-No. 500 [Freerun Revolutions] in the fastening operation.
The deceleration time constant also used during manual reversing.
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