Wecon LX3V-4DA Скачать руководство пользователя страница 9

                                                                                                                                             

LX3V-4DA module

 

8                                                       

                                                                                  WECON Technology Co., Ltd.

 

6.

 

Caution regarding operation 

1)

 

Check whether the output wiring and/or expansion cables are properly connected on LX3V-4DA 

analog special function block. 

2)

 

Check that the LX3V system configuration rules have not been broken, i.e. the number of blocks 
does not exceed 8 and the total system I/O is equal or less than 256 I/O.Ž 

3)

 

Ensure that the correct output mode has been selected for the application. 

4)

 

Check  that  there  is  no  power  overload  on  either  the  5V  or  24V  power  source,  remember  the 
loading  on  the  LX3V  MPU  or  a  powered  extension  unit  varies  according  to  the  number  of 
extension blocks or special function blocks connected.• 

5)

 

Put the main processing unit into RUN. 

6)

 

After turning on or off the 24 VDC power for analog signals, the analog output may fluctuate for 
approximately  1  second.  This  is  due  to  time  delays  in  the  power  supply  from  the  MPU  or 
differences in start time. For this reason, be sure to take preventive measures so that this output 
fluctuation will not affect the external units. 

 

 

7.

 

Adjustment of I/O characteristics 

1)

 

I/O characteristics   

The standard characteristics (factory default) are shown by the solid lines in the figure below. These 

characteristics can be adjusted according to the conditions of the user’s system. 

 

Содержание LX3V-4DA

Страница 1: ...oduleV2 Wecon Technology Co Ltd Website http www we con com cn en Technical Support liux we con com cn Skype fcwkkj or Jason chen842 Phone 86 591 87868869 QQ Group 465230233 Technical forum http wecon...

Страница 2: ...main unit is by buffer memory exchange There are 32 buffer memories each of 16 bits in the LX3V 4DA The LX3V 4DA consumes 90mA current from the 5V power supply in LX3V main unit or active expansion u...

Страница 3: ...refer to section 2 External Dimensions and Parts Figure 3 2 1 Use a twisted pair shielded cable for the analog output This cable should be wired away from power lines or any other lines which could i...

Страница 4: ...efault offset value 0 Default gain value 5000 Output mode 0 11 Gain data CH1 2 12 Offset data CH2 1 13 Gain data CH2 2 14 Offset data CH3 1 15 Gain data CH3 2 16 Offset data CH4 1 17 Gain data CH4 2 1...

Страница 5: ...0 1000 16uA 4000 20000 1000 2 0 20mA 0 1000 20uA 0 20000 1000 3 Disable 4 10V 10V 10000 10000 1mV 0 5000 5000 5 4mA 20mA 0 2000 8uA 4000 20000 2000 6 0 20mA 0 2000 10uA 0 20000 2000 2 BFM 5 Data holdi...

Страница 6: ...n once set will be valid until the Permit command BFM 21 1 is set The initial value is 1 Permit The set value will be retained even after power off 7 BFM 29 Error status When an error occurs use the F...

Страница 7: ...A mode change of BFM 0 automatically involves a change of the corresponding offset and gain values Because of the time needed to write the new values to the internal EEPROM memory a delay of 3 s is r...

Страница 8: ...e analog values set before stopping the MPU will remain output The output will be held 4 When the MPU is in STOP the offset values can also be output For a detailed description refer to Section 5 Prog...

Страница 9: ...n the LX3V MPU or a powered extension unit varies according to the number of extension blocks or special function blocks connected 5 Put the main processing unit into RUN 6 After turning on or off the...

Страница 10: ...ment of I O Characteristics To adjust the I O characteristics set the offset and gain of the LX3V 4DA either using push button switches connected to input terminals of the programmable controller or u...

Страница 11: ...index 4 n Number of transfer points K1 to K32 K1 to K16 for 32 bit command 2 Write BFM 1 m1 m2 n Same as read BFM 2 S Head device number of source data T C D KnX KnM KnY KnS V Z K and H can be used t...

Страница 12: ...h D A conversion are normal On or off The ambient conditions are not suitable for the LX3V 4DA or the LX3V 4DA is defective 5 Check that the external load resistance connected to each analog output te...

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