Instruction/ maintenance manual of the product SDM-CD16AC Campbell
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SDM-CD16AC 16 Channel AC/DC Controller Revision: 8/07 Copyright © 1987-2007 Campbell Scientific, Inc..
Warranty and Assistance The SDM-CD16AC 16 CHANNEL AC/DC CONTROLLER is warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in m aterials and workmanship under norm al use and service for twelve (12) m onths from date of shipment unl ess specified otherwise.
SDM-CD16AC Table of Contents PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for links to specific sections. 1. Function ........................................................
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SDM-CD16AC 16 Channel AC/DC Controller 0 1 2 3 0 1 2 3 ADDRESSES GND C1 C2 C3 +12V AUTO ON OFF 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 AUTO ON OFF C2 C2 C2 16 C2 C2 C2 16 C2 C2 C2 16 C2 C2 C2 16 C2 C2 .
SDM-CD16AC 16 Channel AC/DC Controller 2. Control Specifications Operating voltage: 12 VDC nominal (9 to 18). Current drain at 12 VDC: 6 m A quiescent; 45 m A per active LED (switch on or auto active).
SDM-CD16AC 16 Channel AC/DC Controller Position of Contacts When Position of Contacts When Coil is Energized (ON) Coil Is Not Energized (OFF) FIGURE 2.
SDM-CD16AC 16 Channel AC/DC Controller TABLE 1. Datalogger to SDM-CD16AC Connections Connection Order SDM-CD16AC Datalogger (see note) Function First 12 V 12 V on datalogger or Power external supply S.
SDM-CD16AC 16 Channel AC/DC Controller Cables connecting the terminals of the datalogger and SDM device should be kept as short as possible to minimize the risk of corr uption of the signals and damage from induced surges.
SDM-CD16AC 16 Channel AC/DC Controller Device Neutral (-) Hot (+ ) NO NC COM FIGURE 4. Typical Wiring Application 4.1.3 Motor Control The CD16AC is a UL approved Start/S top motor controlle r. In the figure below, a typical 5 Am p 115 VAC relay contact ci rcuit shows how to control a three phase motor starter in a Motor Contro l Cen ter (MCC).
SDM-CD16AC 16 Channel AC/DC Controller FIGURE 5. CD16AC Relay Outputs to MCC 5. Address Selection Switches Each SDM-CD16AC can have 1 of 16 addresses. Shipped from the factory, the address is set at 00. The following t able shows switch position and t he corresponding address (see Figure 6).
SDM-CD16AC 16 Channel AC/DC Controller 0 1 2 3 0 1 2 3 BA ADDRESSES FIGURE 6. Addressing 6. Datalogger Programming In CRBasic, the SDMCD16AC instructio n is used to contro l th e SDM- CD16AC. Dataloggers that are pr ogramm ed with CRBasic include our CR800, CR850, CR 1000, CR3000, and CR5000.
SDM-CD16AC 16 Channel AC/DC Controller CDCtrl(1) will be sent to port 1 , th e value held in CDCtrl(2) will b e sen t to port 2, etc. The value held in CDCt rl(32) would be sent to port 16 on the second SDM-CD16AC. Reps: The Reps parameter is the number of SDM-CD16AC devices th at will be controlled with this in struction.
SDM-CD16AC 16 Channel AC/DC Controller The number of SDM-CD16ACs to be addressed is defined by the Reps (repetitions) parameter. Each Rep will sequentially address (00, 01, 02,...32, 33) SDM-CD16ACs starting wi th the address specified in paramet er 2 (Instruction 29 param eter 3).
SDM-CD16AC 16 Channel AC/DC Controller 'Dimension Variables Public src(32) Dim i, count , mask(16) 'Program BeginProg for i=1 to 16 mask(i) = 2^(i-1) next i Scan(20,msec,2,0) count = count + 1 for i=1 to 32 src(i) = count AND mask(((i -1) MOD 16) +1) next i SDMCD16AC(src(),2,1) NextScan EndProg 8.
SDM-CD16AC 16 Channel AC/DC Controller Input Location assignm ents are as follows: Input Location Location Label Description 1..5 Temp #1..#5 Avg temp, greenhouse 1..5 10..14 Heat #1..#5 Heater control, greenhouse 1..5 SDM -CD16AC Port 1..5 15..19 Cool #1.
SDM-CD16AC 16 Channel AC/DC Controller 9: Else (P94) Else, If the hea ter is off, 10: Z=F (P30) 1: 0 F Enter a "0" into hea ter 2: 0 Exponent of 10 control locatio n 3: 10-- Z Loc : 11: End .
SDM-CD16AC 16 Channel AC/DC Controller 21: End (P95) End Then Do/Else/End END COOLER CONTROL LOGIC START FAN CONTROL LOGIC BASED ON HEATER/COOLER 22: If X<=>F (P89) If heater is on 1: 10-- X Loc.
SDM-CD16AC 16 Channel AC/DC Controller 32: If Flag/Port (P91) If flag 2 is set 1: 12 Do if flag 2 is hi gh 2: 30 Then Do Then 33: Beginning of Loop (P87) Start fan loop 1: 0 Delay 2: 5 Loop Count 34: .
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Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 Nort h Logan, Utah 84 321 UNITED STATES www.campbellsci.com info@campbellsci.com Campbell Scientific Afri ca Pty. Lt d. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.
An important point after buying a device Campbell SDM-CD16AC (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Campbell SDM-CD16AC yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Campbell SDM-CD16AC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Campbell SDM-CD16AC you will learn all the available features of the product, as well as information on its operation. The information that you get Campbell SDM-CD16AC will certainly help you make a decision on the purchase.
If you already are a holder of Campbell SDM-CD16AC, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Campbell SDM-CD16AC.
However, one of the most important roles played by the user manual is to help in solving problems with Campbell SDM-CD16AC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Campbell SDM-CD16AC along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
