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SDM-CD16AC 16 Channel

AC/DC Controller

Revision: 8/07

C o p y r i g h t © 1 9 8 7 - 2 0 0 7

C a m p b e l l S c i e n t i f i c , I n c .

Содержание SDM-CD16AC

Страница 1: ...SDM CD16AC 16 Channel AC DC Controller Revision 8 07 C o p y r i g h t 1 9 8 7 2 0 0 7 C a m p b e l l S c i e n t i f i c I n c ...

Страница 2: ...f all other warranties expressed or implied including warranties of merchantability or fitness for a particular purpose CAMPBELL SCIENTIFIC INC is not liable for special indirect incidental or consequential damages Products may not be returned without prior authorization The following contact information is for US and International customers residing in countries served by Campbell Scientific Inc ...

Страница 3: ...tions 5 4 1 2 Controlled Device Connections 5 4 1 3 Motor Control 6 5 Address Selection Switches 7 6 Datalogger Programming 8 6 1 CRBasic Programming 8 6 2 Edlog Programming 9 7 Theory of Operation 10 8 Program Examples 10 8 1 CRBasic Example 10 8 2 Edlog Example 11 Figures 1 SDM CD16AC Face Panel 1 2 Switch Operation 3 3 Connection Block Diagrams 3 4 Typical Wiring Application 6 5 CD16AC Relay Ou...

Страница 4: ...This is a blank page ...

Страница 5: ...with a manual override toggle switch The toggle switch has three positions ON and OFF for manual override and AUTO for datalogger control In the ON position the common COM and normally open NO contacts are closed see Figure 2 In the AUTO position the state of the relays are controlled by the datalogger control ports The SDM CD16AC is a synchronously addressed datalogger peripheral Three ports on t...

Страница 6: ...nsiderations The SDM CD16AC power requirements are large compared to most CSI products For most applications an external power supply see Figure 3 is recommended to power the SDM CD16AC For some applications it may be convenient to use the datalogger supply to power the SDM CD16AC see Figure 3 For long term applications the lead acid power supply available with CSI dataloggers should be used allow...

Страница 7: ...FF FIGURE 2 Switch Operation EXTERNAL 9 TO 18 VDC SDM CD16AC DATALOGGER 12 V GND C1 or SDM C1 C2 or SDM C2 C3 or SDM C3 Connection With External Supply see note on next page SDM CD16AC DATALOGGER GND 12 V C1 or SDM C1 C2 or SDM C2 C3 or SDM C3 Connection with Datalogger Supply see note on next page FIGURE 3 Connection Block Diagrams 3 ...

Страница 8: ...s etc must be made differentially This is a result of slight ground potentials created along the 21X analog terminal strip when the 12 V supply is used to power peripherals This limitation reduces the number of available analog input channels and may mandate an external supply for the SDM CD16AC 4 Installation The SDM CD16AC must be installed in an enclosure that provides a pollution degree 2 envi...

Страница 9: ...xt For CR10 and 21X dataloggers the total length of the cables connecting the SDM CD16AC s should not exceed 20 feet Total cable lengths in excess of 20 feet will adversely influence communication performance For CR7 dataloggers the total cable length should not exceed 600 feet 4 1 Wiring 4 1 1 SDM CD16AC Power and Control Connections Refer to Figure 3 and Table 1 for SDM CD16AC operating power an...

Страница 10: ... three phase motor starter in a Motor Control Center MCC Typically the CR10X will automatically command the appropriate relay to energize the motor starter The relay in the CD16AC will remain latched until the CR10X program commands that the motor be turned off at which time the relay will open the circuit to the motor starter and the motor will stop The CD16AC can be used to control three phase p...

Страница 11: ...hes Each SDM CD16AC can have 1 of 16 addresses Shipped from the factory the address is set at 00 The following table shows switch position and the corresponding address see Figure 6 Switch A 0 1 2 3 Switch B 0 00 01 02 03 1 10 11 12 13 2 20 21 22 23 3 30 31 32 33 Base 4 Address Matrix 00 01 02 32 33 7 ...

Страница 12: ...RBasic Programming SDMCD16AC Syntax SDMCD16AC Source Reps SDMAddress Remarks A port on an SDM CD16AC is enabled disabled turned on or off by sending a value to it using the SDMCD16AC instruction A non zero value will enable the port a zero value disables it The values to be sent to the CD16AC are held in the Source array The SDMCD16AC instruction has the following parameters Source The Source para...

Страница 13: ...icates with CRBasic dataloggers use base 10 when addressing SDM devices Edlog programmed dataloggers e g CR10X CR23X used base 4 for addressing see Table 2 NOTE TABLE 2 Base 10 to Base 4 Reference Chart Base 10 Base 4 Base 10 Base 4 0 0 8 20 1 1 9 21 2 2 10 22 3 3 11 23 4 10 12 30 5 11 13 31 6 12 14 32 7 13 15 33 reserved 6 2 Edlog Programming Instruction 104 SDM CD16AC use with CR23X CR10 X and 2...

Страница 14: ...R7 the Card parameter 4 specifies which 725 Excitation Card is being used for the Control Port signals The Reps parameter does not advance beyond the specified Card requiring another Instruction 29 for each 725 Excitation Card used 7 Theory of Operation The SDM CD16AC is a synchronously addressed peripheral C2 and C3 driven high by the datalogger initiate a cycle While holding C3 high the datalogg...

Страница 15: ...he SDM CD16AC is used to control the temperature between 23 and 28 C in each of 5 greenhouses In each green house the SDM CD16AC controls a heating unit a refrigerating unit and an air mixing fan according to the following conditions Heating unit Activate when temperature 23 5 C Deactivate when temperature 25 5 C Cooling unit Activate when temperature 27 5 C Deactivate when temperature 24 5 C Mixi...

Страница 16: ...op at Step 30 2 5 Loop Count START HEATER CONTROL LOGIC 2 If X F P89 If Heater On 1 1 X Loc threshold is 2 4 exceeded 3 23 5 F 4 30 Then Do Then 3 Z F P30 Put a 1 into Heater 1 1 F Control Location 2 0 Exponent of 10 3 10 Z Loc 4 End P95 End Then Do End 5 If X F P89 If Heater 1 10 X Loc 1 on Heater Control 2 2 Location 0 3 0 F 4 30 Then Do Then 6 If X F P89 1 1 X Loc Temp 1 Check Upper Threshold 2...

Страница 17: ...nto cooler 1 1 F Control Location 2 0 Exponent of 10 3 15 Z Loc 14 End P95 End Then Do End 15 If X F P89 If cooler is on 1 15 X Loc Cooler control 2 2 Location 0 3 0 F 4 30 Then Do Then 16 If X F P89 Check lower threshold to 1 1 X Loc see if cooler should be 2 4 turned off 3 24 5 F 4 30 Then Do 17 Z F P30 If cooler should be turned 1 0 F off put a 0 into cooler 2 0 Exponent of 10 control location ...

Страница 18: ...lag 1 is high 2 30 Then Do Then 25 Z F P30 Put a 1 into fan 1 1 F control location 2 0 Exponent of 10 3 20 Z Loc 26 Else P94 Else If flag 1 is reset 27 Z F P30 Put a 0 into fan 1 0 F control location 2 0 Exponent of 10 3 20 Z Loc 28 End P95 End Then Do Else End 29 Do P86 Reset flag 1 1 21 Set low Flag 1 30 End Loop P95 End Master Loop END FAN CONTROL LOGIC BASED ON HEATER COOLER START FAN CONTROL ...

Страница 19: ...0 Exponent of 10 3 20 Z Loc 35 End P95 End fan loop 36 End P95 End then do 37 If time is P92 1 0 minutes into a Reset flag 2 at the 2 15 minute interval end of the 15 minute 3 22 Set low Flag 2 END FAN CONTROL LOGIC BASED ON TIME INPUT LOCATIONS 10 THROUGH 24 ARE NOW LOADED WITH 1 OR 0 TO SET PORTS ON THE SDM CD16AC 38 SDM CD16AC P104 Send instructions to the 1 1 Reps SDM CD16AC with address 00 2 ...

Страница 20: ...SDM CD16AC 16 Channel AC DC Controller This is a blank page 16 ...

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Страница 22: ...ZIL www campbellsci com br suporte campbellsci com br Campbell Scientific Canada Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Ltd CSL Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UNITED KINGDOM www campbellsci co uk sales campbellsci co uk Campbell Scientific Ltd France Miniparc du Verger Bat H 1 ru...

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