Download Chapter 2 Installing the Micro-Tech 3100
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Micro-Tech 3100 Do the same with the second point shown below. - I/O DEF SCROLL 2B Moisture input calibr. #2 5.0 %M = 5.0 V Volt ENTER %Moist Password: Service Default: 5.0 % 5.0 V Min: 1.0 % 1.0 V Max: 100.0 % 5.0 V A.6.1.4 Define Digital Inputs Digital inputs can be programmed. The following screen shows one logical function per time, and allows the user to assign it to a physical input. The NEXT key scrolls between the logical functions. The NC/NO key selects the Normally Open (NO) or Normally Closed (NC) status of the input. Normally Open means the input is inactive when disconnected. To program a function, scroll with NEXT until the function is displayed, then enter the physical input number and confirm with ENTER; finally scroll with NC/NO until the desired mode is displayed. By assigning a function to 0, the function is disabled. - I/O DEF SCROLL 4 Dig. Input def. Ext Alarm 1 ___ NC ENTER NC/NO NEXT Password: Service The following table shows the available logical selections that can be assigned to any available physical input. Typical field wiring drawings and customer specific field wiring drawings show Reset alarms defaulted to # 1 NO, Refill defaulted to #2 NO and Running defaulted to #3 NC. Default inputs can be reassigned to any physical input if desired. External alarms 1, 2 and 3 can be assigned to logical functions not on the list. Logical selections should not be reassigned after the physical inputs have been wired. CAUTION LOGICAL INPUTS RETURN TO THE INSTRUMENT IS COLD STARTED. DEFAULT IF THE Appendix Table A-1: Available Logical Selections Selections: Default: External alarm 1 0 NO External alarm 2 0 NO External alarm 3 0 NO REC XXXX (0 = function disabled) A-37