Yamaha SRCP30, User Manual

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I/O INTERF
ACE
Chapter 3 I/O INTERFACE
The SRCP30 controller has I/O interface connectors (EXT. CN and I/O. CN) as a standard feature. The EXT. CN is
used for emergency stop input and 24V power input for I/O control. The I/O. CN consists of an interlock input, 7
dedicated command inputs, 3 dedicated outputs, 8 general-purpose inputs, 5 general-purpose outputs, feedback
pulse outputs, etc. These I/O interfaces allow exchanging commands and data between the SRCP30 controller and
external equipment. These I/O interfaces can also directly connect to and control actuators such as valves and
sensors. To construct a system utilizing the features of the SRCP30 controller, you must understand the signals
assigned to each terminal on the I/O. CN and EXT. CN and how they work. This chapter covers this fundamental
information. This chapter also provides examples of I/O circuit connections and timing charts for expanding the
system by using a PLC or similar devices. Refer to these diagrams and examples when creating sequence programs.
Terms "ON" and "OFF" used in this chapter mean "on" and "off" of switches connected to the input terminal when
referring to input signals. They also mean "on" and "off" of output transistors when referring to output signals.