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VC-4PT Resistive Temperature Input Module User Manual 

        Thank  you  for  purchasing  the  vc-4pt  resistance  temperature  input  module  developed  and  produced  by  Suzhou  VEICHI 

Electric Technology Co., Ltd. Before using our VC series PLC products, please read this manual carefully, so as to better grasp 

the characteristics of the products and correctly install and use them. More secure application and make full use of the rich functions 

of this product. 

Tip

 

        Please read the operating instructions, precautions and cautions carefully before starting to use the product in order to reduce 

the risk of accidents. Personnel responsible for the installation and operation of the product must be strictly trained to comply with 

the safety codes of the relevant industry, strictly observe the relevant equipment precautions and special safety instructions provided 

in this manual, and carry out all operations of the equipment in accordance with the correct operating methods.

 

1    Interface description 

1.1    Interface description 

        The  expansion  interface  and  user  terminals  of  the  VC-4PT  are  covered  with  flaps,  and  the  expansion  interface  and  user 

terminals are exposed when each flap is opened. The appearance and interface terminals are shown in Figure 1-1. 

 

RUN

ERR

VC-4PT

V EI C HI

24

V
R1

+
R1

-

I1

-

I1

+

COM

Sliding snap

DIN slot snap

Product labels

Extended male plug

Extension female socket

Status Indicator

Wiring terminals

Terminal cove r

1

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

R2

+
R2

-

I2

-

I2

+

R3

+
R3

-

I3

-

I3

+

R4

+
R4

-

I4

-

I4

+

 

Figure 1-1 Module interface appearance - Module interface terminal diagram 

1.2 Product 

 

  VC- 4  PT

PT (Thermal resistance type input module)

Number of channels (4-channel input in the example)

VC:VEICHI Programmable controller

 

Figure 1-2 Model number 

          The VC-4PT is connected to  the system via the expansion interface, which is used for the connection of other expansion 

modules of the system, as described in 1.4 Accessing the system   

 

 

 

Содержание VC-4PT

Страница 1: ...nual and carry out all operations of the equipment in accordance with the correct operating methods 1 Interface description 1 1 Interface description The expansion interface and user terminals of the VC 4PT are covered with flaps and the expansion interface and user terminals are exposed when each flap is opened The appearance and interface terminals are shown in Figure 1 1 RUN ERR VC 4PT VEICHI 2...

Страница 2: ...for channel 4 RTD signal 18 I4 Channel 4 RTD signal auxiliary negative input Figure 1 3 Terminal definition table 1 4 Access system The expansion interface allows the VC 4PT to be connected to a main module of the VC series PLC or to other expansion modules The expansion interface can also be used to connect other expansion modules of the same or different models of the VC series This is shown in ...

Страница 3: ...age 2 50mA from mains module or external power supply Digital Circuit 5Vdc 70mA from the main module 2 2 Performance indicators Table 2 2 Performance indicators Project Indicator Celsius C Fahrenheit F Input signal RTD type Pt100 Cu100 Cu50 Number of channels 4 Conversion speed 15 2 ms 4 channels unused channels are not converted Rated temperature range Pt100 150 600 Pt100 238 F 1112 F Cu100 30 12...

Страница 4: ...lues of each channel 4 If the VC 4PT measurement value is 5 C 41 F higher in actual use the error can be eliminated by setting the two points P0 0 50 and P1 6000 5950 of the characteristic adjustment see Figure 3 3 for an example Figure 3 3 Example of characteristic change 4 Programming example 4 1 Programming example for VC series VC 4PT module As shown in the example below the VC 4PT is connecte...

Страница 5: ...the 4PT module to enter the 4PT setup screen as shown below Figure 4 1 First channel setup 3 Click on for the second channel mode configuration Figure 4 2 Second channel setup 4 Click on to configure the third channel mode and click on Confirm when finished ...

Страница 6: ...Receive the average conversion result with data registers D1 D2 and D3 The changes are shown in Figure 4 4 Note that the characteristic changes are all in degrees Celsius The range for setting the change value is within 1000 100 C Figure 4 4 Channel characteristics change setting 5 Installation 5 1 Installation size 9 1 7 3 2 9 0 9 9 2 4 0 R U N E R R V C 4 P T V E I C H I 2 4 V R 1 R I I 1 I 1 C ...

Страница 7: ...e main module and is provided via the expansion interface 4 Check the application to ensure that the correct operating method and parameter range has been selected for the application 5 Set the VC1 main module to which the module is connected to a RUN state 6 2 Fault check If the VC 4PT does not operate properly check the following items Check the status of the main module ERR indicator Blinking c...

Страница 8: ...be calculated on the basis of the actual cost and if there is another contract the contract will take precedence 6 Please make sure that you keep this card and present it to the service unit at the time of warranty 7 If you have a problem you can contact your agent or you can contact us directly Suzhou VEICHI Electric Technology Co Ltd China Customer Service Center Address No 1000 Songjia Road Wuz...

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