Future Design MCTB 4.3, Руководство пользователя

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MCTB
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3.3 Connecting to the Smart IO Monitor Module
Power connections should be made using minimum 18 AWG copper conductors (maximum wire size = 14
AWG). To make a connection, strip about ¼
” of insulation off the end of the wire, turn the connector screw
counterclockwise until the gap is wide open, insert the wire all the way in, and turn the screw clockwise until it’s
tight.
The communication connection to the MCTB requires a single twisted-pair cable (on the same link as the B42
loop control boards and L41 limit control). When using shielded, twisted-pair cable, be sure to ground only one
end of the cable, preferably at the module. Allowing any other portion of the cable shield to come in contact
with ground, or grounding both ends, will cause ground loop currents to flow in the cable which can cause
communication errors.
In order for the MCTB to be able to communicate with the monitor module, the communications address must
also be properly set. To do this, remove the cover located on the bottom of the module to access the rotary
switches. Adjust both rotatory knobs to a value of 1. Replace the cover after the settings have been made.
IMPORTANT: See section 4.16 Smart IO Communication Utility to complete the monitor card installation
process. This utility must be run in order to set the proper communication parameters in the
monitor card prior to use.
3.3.1 Sensor Wiring
Each input of the Smart series monitor module can be configured for a variety of thermocouples, voltage and
current ranges. Thermocouple types include J, K, T, E, R, S, B and N. Voltage ranges include +100mV,
+500mV, +1V, +5V, +10V, 0~100mV, 0~500mV, 0~1V, 0~5V and 0~10V. Current ranges include +20mA,
4~20mA and 0~20mA.
NOTE: When the input is to be used for a current input, the slide switch for the input must be set to current
mode. For thermocouple and voltage inputs, the slide switch must be set for voltage mode.