1 Spot Welding Application Using a Motor Gun
1.13 Other Functions Using a Motor Gun
1-140
1.13.2 Gun Change
1.13.2.1 Gun Change Instruction
Gun change is executed by the GUNCHG (gun change) instruction.
<Example>
GUNCHG GUN#(1)
PICK
A B
1.Gun No.
2. Designation of connecting or disconnecting a gun
When “PICK (gun connected)” is selected, the power supply of the gun
motor is turned ON.
When “PLACE (gun disconnected)” is selected, the power supply of the
gun motor is turned OFF.
1.13.2.2 Signal Status to Execute GUNCHG Instruction
The signals must be in the status shown in the following table when
executing GUNCHG instruction.
Signal Name Input/
Output
Explanation Signal
Status
Gun ID No. Input
(3 bits)
A binary signal to identify the gun
number.
Agree
with Gun
No.
1)
1 The signal must agree with the gun number as shown in the following example.
Gun Chuck Input The signal to confirm that the gun is
connected.
Normally, a chucking confirmation signal
of ATC is allocated.
ON
Gun Unchuck Input The signal to confirm that the gun is
disconnected.
Normally, an unchucking confirmation
signal of ATC is allocated.
OFF
Gun Unchuck
Request
Output The signal to connect the gun.
Normally, a chucking signal of ATC is
allocated. (CHUCK = OFF, UNCHUCK =
ON)
OFF
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