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Micromod MOD: 30ML Installation User Manual

Page 47

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MOD 30ML Multiloop Controller

POWER, GROUNDING, AND BUILT-IN I/O CONNECTIONS

The input circuit and input signal specifications for each input type are shown in the following
sections:

 Volt, Millivolt and Thermocouple Input - Section 3.5.1
 RTD Input - Section 3.5.2
 Current Input from a 2-Wire Transmitter - Section 3.5.3
 Current Input from a Non 2-Wire Transmitter - Section 3.5.4
 Resistance Input - Section 3.5.5

General specifications for built-in process inputs are:

Input Isolation: Galvanic isolation using transformers and optical isolators.

Input Common Mode Rating: 45V dc

Common Mode Rejection: 120 dB @ 50/60 Hz

Normal Mode Noise Filter: 20 dB minimum @ 60 Hz

Maximum Normal Mode Voltage: 30V dc (except current input)

Display Accuracy: Input accuracy ± one least significant display digit

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