Micromod MOD: 30ML Installation - Manual (Page 46)

MOD 30ML Multiloop Controller
POWER, GROUNDING, AND BUILT-IN I/O CONNECTIONS
3.5 BUILT-IN PROCESS INPUT CONNECTIONS
Built-in inputs 1 and 2 are isolated universal analog inputs which accept volts dc, millivolts dc,
milliamps dc (includes 2-wire transmitters), RTD, Thermocouple, and resistance signals.
Connections to these inputs are made to the terminals shown in Figure 3-2a (Model C) and
3-2b (Models A & B). The input circuit diagrams in this section (Figures 3-3 to 3-9) identify
Input 1 terminals as I/O 1 and Input 2 terminals as I/O 2.
Each of the two built-in analog input circuits is isolated from every other circuit. It is
recommended that either Input– or mA Input + be connected to ground at some point in the
system to prevent possible build-up of static electricity and reduce the pickup of noise.
Figure 3-2a Model C. Terminal Identifications for Built-in I/O
Figure 3-2b Models A & B. Terminal Identifications for Built-in I/O
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