User Manual

2
1.3 Definition of terminal
No.
Marking
Instruction
No.
Marking
Instruction
01
24V
Analogue power supply 24V positive
02
COM
Analogue power supply 24V negative
03
V1+
Voltage signal output for channel 1
04
PG
Grounded side
05
I1+
Channel 1 current signal output
06
VI1–
Channel 1 common ground end
07
V2+
Channel 2 voltage signal output
08

Reserved
09
I2+
2nd channel current signal output
10
VI2–
Channel 2 common ground end
11
V3+
Voltage signal output for channel 3
12

Reserved
13
I3+
Channel 3 current signal output
14
VI3–
Channel 3 common ground end
15
V4+
Channel 4 voltage signal output
16

Reserved
17
I4+
Channel 4 current signal output
18
VI4–
Channel 4 current signal output
Table 1-3 Definition of terminals
1.4 Access system
(1) VC-4DA is used in VC series programmable controller system, it can be connected to the system through hard connection, see
Figure 1-3 for the connection method, plug it into the expansion interface of the main module or any expansion module in the system, then
VC-4DA can be connected to the system.
(2) After the VC-4DA is plugged into the system, its expansion interface can also be used to connect other expansion modules of the
VC series, such as IO expansion modules, VC-4DA, VC-4TC, etc., and of course the VC-4DA can also be connected.
(3) The main module of the VC series programmable controller can be extended with several IO expansion modules and special
function modules. The number of expansion modules to be connected depends on the amount of power the module can provide, see 4.7
Power Supply Specifications in the VC Series Programmable Controller User Manual for details.
(4) This module does not support hot-swapping of the front and rear interfaces.
Pu sh to t he ri ght
Pu sh to t he left
VC1 -1 61 4M AR
Figure 1-4 Schematic diagram of the connection between the VC-4DA analogue module and the main module
1.5 Wiring instructions
Figure 1-5 Wiring diagram for VC-4DA user terminals
AGND
+
AGND
+
AGND
PGND
⑤
VC-4DA
/
DC/DC
Converter
②
Voltage load
Current load
CH4
①
①
②
③
④
⑥
⑦
DC24V±10%
200MA
V4+
I4+
VI4-
V1+
I1+
VI1-
24v+
PG
24V