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3-9. Using method of terminal X
The standard I / O expansion card can use up to 4 X terminals. Refer to chapter 2-4-3 for I / O wiring method.
When out of factory, P2-16 = 0000, P2-17 = 0000. When X is short circuited, the signal is valid (logic 1); when
X terminal is suspended, the signal is invalid (logic 0);
The user can also change the effective mode of the X terminal, that is, when the X terminal is short circuited, it
is an invalid (logic 0) signal; when the X terminal is suspended, it is an effective (logic 1) signal. At this time,
the corresponding bits of P2-16 and P2-17 need to be changed to 1.
The inverter also has software filtering time (P2-12) for the input signal X, which can improve the
anti-interference level.
For the X1-X3 input, the port signal delay function is specially provided to facilitate some applications
requiring delay processing.
The functions of the above four X terminals can be defined in P2-00 ~ P2-03, and each X can be selected from
50 functions as required. Refer to the detailed description of P2-00 ~ P2-03 for details.
As the design of hardware features, only X4 can accept high-frequency pulse signal, for the need for high-speed
pulse counting applications, please arrange in X4.
3-10. Using method of terminal Y
Standard I / O expansion card has two channels of output, which are Y1 and TA1/TB1/TC1, wherein Y1 is
transistor output, which can drive 24VDC low-voltage signal circuit, TA1/TB1/TC1 is relay output, and can
drive 220VAC control circuit.
By setting the value of P3-01 to P3-05, output function of each channel can be defined. It can be used to
indicate various working states and alarms of the inverter. There are about 40 function settings in total, so that
the user can realize specific automatic control requirements. Please refer to the detailed description of group P3
parameters.
3-11. Using method of terminal AI
Standard I/O card supports 2 channels of AI terminal.
Voltage 0～10V
Current 0～20mA
Voltage 0～10V
Current 0～20mA
AI can be used when using external voltage and current signal to set frequency, torque, voltage of VF separated,
PID or feedback. The voltage or current value corresponding to the actual given or feedback physical quantity
relationship is set through P2-18 ~ P2-45.
The sampling value of AI can be read in U group function code; the converted calculation value is used for
internal subsequent calculation, and users cannot read it directly.
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