1 Spot Welding Application Using a Motor Gun
1.4 System Setting (Motor Gun)
1-24
1. GUN NO.
Shows the No. of the gun to be used.
When using two guns or more, select the No. by pressing [PAGE].
2. SETTING
Shows whether the gun condition file has been set or not. For the file
where the values have not been entered, “NOT DONE” appears, while
for the file where the values have already been entered, “DONE”
appears.
3. GUN TYPE
Shows the gun type. Select from “C-GUN,” “X-GUN (SINGLE ARM
MOVE)” and “X-GUN (DOUBLE ARM MOVE).”
4. WELDER NO.
Shows the No. of the connected welder.
5. TORQUE DIR
Specifies the pressure direction of the gun axis motor. When the direc-
tion to increment the motor encoder value and the pressure direction of
the gun are the same, select “+”. When they are different, select “-”.
6. PULSE, STROKE
Shows the relationship between the encoder pulse value of the gun axis
motor and the gun stroke. The pulse value for the specified gun stroke
can be calculated by interpolation of these values. Refer to
chapter 1.4.1.1 Entering Pulse to Stroke Conversion Data for more
details.
7. TORQUE, PRESSURE
Shows the relationship between the gun axis motor torque and the tip
pressure. The torque value for the specified pressure can be calculated
by interpolation of these values. Refer to chapter 1.4.1.2 Entering
Torque to Pressure Conversion Data for more details.
8. MAX PRESSURE
Enter a maximum pressure that the gun can apply.
If the value specified by the pressure file exceeds it, an alarm occurs
when executed.
In the teach mode, the torque is restricted by the maximum pressure.
In case an appropriate value is specified to the maximum pressure, an
alarm “4328 SERVO TRACKING ERROR” or “1303 ARITHMETIC
ERROR (SERVO)” may occure in the teach mode.
9. PRESSURE COMPENSATION
Set the difference of the pressure between the upwards and the down-
wards.
Refer to chapter 1.13.5 "Gun Pressure Compensation Function"for
the details.
10. GUN ARM BEND COEF.
Set the gun arm bend compensation volume per 1000N.
Refer to chapter 1.13.6 "Compensation of Gun Arm Bend for C-Gun
and X-Gun (SINGLE ARM MOVE)" for the details.
11. GUN PUSHING COEF
Set the gun axis pushing volume per 1000N.
Refer to chapter 1.10.7.4 Setting the Gun Pushing Coefficient for the
details.
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