INVT IVC3 Series Quick Reference Manual page 2

3 Digital input/output characteristics
3.1 Input characteristics and signal specifications
Table 3-1 describes the input characteristics and signal specifications.
Table 3-1 Input characteristics and signal specifications
High-speed input
Item
terminals X0 to X7
Source-type or sink-type mode. You can select the
Signal input mode
mode through the "S/S" terminal.
Detection
24V DC
voltage
Input
1 kΩ
impedance
Electrical
The resistance of the
paramet Input
external circuit is lower
ers switched on
than 400 Ω.
The resistance of the
Input
external circuit is higher
switched off
than 24 kΩ.
X0–X7: The filtering time can be set through
Digital
programming, and the allowable range is 0 to 60
Filtering filtering
ms.
function
Hardware Hardware filtering is adopted for ports except the X0
filtering to X7, and the filtering time is about 10 ms.
Ports X0 to X7 can implement multiple functions
including high-speed counting, interrupting, and
High-speed function pulse capture.
The maximum couting frequency of X0 to X7 is 200
kHz.
The maximum frequency of the high-speed input port is limited. If the input
frequency exceeds the limit, the counting may be incorrect or the system fails
to run properly. You need to select a proper external sensor.
The PLC provides the "S/S" port for selecting the signal input mode. You can
select the source-type or sink-type mode. Connecting "S/S" to "+24V"
indicates that you select the sink-type input mode, and then an NPN-type
sensor can be connected. If "S/S" is not connected to "+24V", it indicates that
the source-type input mode is selected. See Figure 3-1 and Figure 3-2.
Internal power supply
Source-type
of the module
wiring mode
+24V
24V+ 24 V DC
COM
24V- Auxiliary
power supply
S/S
Sensor
Isolation
X
circuit
Wiring diagram of source-type input mode based
on the internal power supply of the module
Figure 3-1 Source-type input wiring diagram
Sink-type
Internal power supply
wiring mode
of the module
+24V
24V+
24V DC
COM
24V- Auxiliary
S/S power supply
Sensor
X Isolation
circuit
Wiring diagram of sink-type input mode based
on the internal power supply of the module
Figure 3-2 Sink-type input wiring diagram
3.2 Output characteristics and signal specifications
Table 3-2 describes the output electrical specifications.
Table 3-2 Output electrical specifications
Item
Transistor output
Output mode The output is connected when the output state is ON,
and it is disconnected when the output state is OFF.
Circuit insulation Optocoupler insulation
Action indication The indicator is on when the optocoupler is drived.
Circuit power 5–24 V DC
supply voltage The polarities are differentiated.
Open-circuit
Lower than 0.1 mA/30 V DC
leakage current
Min. load 5 mA (5–24 V DC)
Common input terminal
5.7 kΩ
The resistance of the
external circuit is lower
than 400 Ω.
The resistance of the
external circuit is higher
than 24 kΩ.
Source-type
User-provided power supply
wiring mode
+24V
24V+ 24 V DC
COM
Auxiliary
24V-
power supply
S/S
Sensor
X
Isolation
circuit
Wiring diagram of source-type input mode
based on an external auxiliary power supply
Sink-type
wiring mode
+24V
User-provided
24V+ 24 V DC
power supply
COM
24V-
Auxiliary
S/S power supply
Sensor
X
Isolation
circuit
Wiring diagram of sink-type input mode based
on an external auxiliary power supply
Output specification
Item
Total load of the common terminals:
Max. Resistive Common terminal of the 0.3 A/1-point group
load Common terminal of the 0.8 A/4-point group
outpu
Common terminal of the 1.6 A/8-point group
t
curre Inductive
7.2 W/24 V DC
nt load
Lamp load 0.9 W/24 V DC
Resp
OFF→ON Y0–Y7: ≤1 μs/higher than 10 mA
onse
Others: ≤0.5 ms/higher than 100mA
ON→OFF
time
Max. output
Y0–Y7: 200 kHz (maximum)
frequency
One common terminal can be shared by a maximum
Common output of 8 ports, and all the common terminals are isolated
terminal from each other. For details about common terminals
of different models, see the terminal arrangement.
Fuse protection No
(1) The transistor output circuit is equipped with a built-in voltage-stabilizing
tube to prevent the counter-electromotive force caused when the inductive
load is disconnected. If the capacity of the load exceeds the specification
requirement, you need to add an external freewheeling diode.
(2) High-speed transistor output involves distributed capacitance. Therefore, if
the machine runs at 200 kHz, you need to ensure that the conducted current is
larger than 15 mA to improve the output characteristc curve, and the device
connected to it can be connected to a resistor in parallel mode to increase the
load current.
3.3 Input/output connection instances
Input connection instance
Figure 3-3 shows the connection of IVC3-1616MAT and IVC-EH-0808ENR,
which is an instance of implementing simple positioning control. The position
signals obtained by the encoder can be detected by the X0 and X1 high-speed
counting terminals. The position switch signals that require quick response
can be connected to the high-speed terminals X2 to X7. Other user signals
can be distributed among the input terminals.
AC - L
AC - N
N L +24V COM S/S
+24V
Switch-mode
+5V
power supply
GND
Y0 Y1 COM0 Y2
Y3 COM1 Y4 Y5 COM2
Figure 3-3 Input connection instance
Output connection instance
Figure 3-4 shows the connection of IVC3-1616MAT and IVC-EH-0808ENR.
The output groups can be connected to different signal voltage circuits, that is,
the output groups can operate in circuits of different voltage classes. They can
be connected only to DC circuits. Pay attention to the direction of the current
when connecting them.
AC - L
AC - N
N L +24V COM S/S
+24V
+5V
Switch-mode
GND
power supply
Y0 Y1 COM0 Y2
Y3 COM1 Y4 Y5 COM2
L L L L
+24V +12V
+24V
Various low-voltage control circuits
Figure 3-4 Output connection instance
Output specification
The common terminal
can be connected
through a terminal block.
Encoder
+24V VGND
传感器
+24V
X0 X1 X2 X3 X4 X16 X17 X0
IVC3-1616MAT IVC-EH-0808ENR
COM3 Y10 Y11 COM5 Y0 Y1
Y6 Y7
+24V
X0 X1 X2 X3 X4 X16 X17 X0
IVC3-1616MAT IVC-EH-0808ENR
COM3 Y10 Y11 COM5 Y0 Y1 Y2
Y6 Y7
A B A B A B
+5V
The common terminal can be
connected through a terminal block.
220 V AC control load circuit
X1 X7
Y2 COM0
X1 X7
COM
AC - L
AC - N
2