Amada 300 Series, Operation Manual

Page: 65 / 80

APPENDIX B: WELD HEAD CONTROL INPUT/OUTPUT SIGNALS
SERIES 300 FAST RESPONSE WELD HEAD SYSTEM
990-115 B-3

CONTROL SIGNAL INPUT:
15-pin D-type connector that receives control signals from external
automation equipment for schedule selection, emergency shutdown, process inhibit and alarm relay
control.

CONTROL SIGNAL OUTPUT:
15-pin D-type connector that furnishes remote schedule selection
signals to the power supply.

WELD FIRE SWITCH:
Initiates the power supply weld current.

FOOT SWITCH:
Initiates the weld cycle.

Lower central cable with right-angle connector: Conducts command signals to, and feedback signals
from, the Linear Actuator.

Right bottom corner cable: Power mains input.
CONTROL SIGNAL INPUT Connector
The CONTROL SIGNAL INPUT connector interfaces with a Programmable Logic Control (PLC) or host
computer for operation in an automated environment. As shown in figure B-2, the connector accommodates
three functional groups of signals: remote schedule selection, relay contact outputs, and process stop
external inputs. The signal functions and pin assignments are listed in table B-1. Typical control signal
input circuits are shown in figure B-3.
Figure B-2. PLC Interface Schematic Diagram