GSK GSK980TDc, Manual

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Chapter 2 Definition and Connection of Interface Signal
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Capacity of the contact: DC30V, 16mA above
Leakage current between contacts in open circuit: 1mA below
Voltage drop between contacts in closed circuit: 2V below (current 8.5mA, including cable
voltage drop)
There are two external input types for input signals: one type is input by contact switch whose
signals are from keys, stroke switch and contacts of relay at machine side, as shown in Fig. 2-27:
Fig. 2-27
The other type is input by switch with no contacts (transistor) as shown in Fig. 2-28A, 2-28B:
Fig. 2-28A NPN connection
Fig. 2-28B PNP connection
The input interface signals defined by PLC of GSK980TDc
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GSK980TDc-V system involve
XDEC, ZDEC, ESP, ST, SP/SAGT, PRES, DITW, DIQP, T01 ～ T08, TCP and so on.
2.7.2 Output signal
The output signal is used for the machine relay and indicator, if it is through on with 0V, the
output function is active; if it is off with 0V, the output function is inactive. There are 36 digital volume
outputs that they all have the same structure in I/O interface as shown in Fig. 2-29: