Mitsubishi MELSEC A1S63P User Manual

i APPLICATION EXAMPLES
I
IWeldingRobot I
I Robot control system application
1
Items controlled
Positioning mechanism, spot welder, welding gun and inverter
Overall aim
After the welding points are determined by teaching, automatic welding is done in a
playback mode,
Advantages
A low cost and simple welding robot is possible, without the need for a high cost
specialized controller.
Method of control description
When the welding machine
is manually operated in "teaching" mode, the position is
detected by the position control module AlSD7142. At stop, the position is stored
in a data register. Thereafter, only the welding points are taught.
In "playback" mode, position data is read out in the correct order and the welder is
positioned and performs welding. During positioning the welder speed is controlled
by the inverter. Stopping accuracy is approximately
+/- 0.5 mm, and accumulative
errors have been eliminated by the sequence program.
System configuration
Distance
Speed
(pulse
outputs Solenoids
a Pilot lamps
-
inputs & Push buttons
- Limitswitches
Servo motor
DC servo
amplifier
I)- @ w elder
Welded object
PLC system requirements
1 x AISCPU
1 xAIS6IP
1 x AI S38B
n x AISX-
N x AI SY-
(AI SD71-S2 - Position control module, see page 24)
1 xAISD~I-SZ
136

Mitsubishi MELSEC A1S63P Specifications

General

Brand	Mitsubishi
Model	MELSEC A1S63P
Category	Controller
Language	English