Ovation 1C31227G01 | 8-channel Analog Input Module

The Ovation 1C31227G01 is an 8 – channel analog input module. It targets industrial applications that need to precisely measure 4 – 20 mA signals. It offers high accuracy, has internal diagnostics, and can self – calibrate, thus ensuring reliable data acquisition.

Key Features

8 Analog Input Channels supporting 4-20 mA signals
14-bit Resolution for high-accuracy measurements
On-Demand Self-Calibration by the Ovation Controller
Internal Diagnostics for module operating faults, out-of-range detection, and open-loop detection
1000V AC/DC Dielectric Isolation (Channel-to-Channel & Channel-to-Logic)
Configurable Normal Mode and Common Mode Rejection for enhanced noise immunity

Specifications

Electrical Specifications

Parameter	Value
Number of Channels	8
Input Range	4 – 20 mA ±1V
Resolution	14 bits (Group 1), 13 bits & Sign (Group 2)
Guaranteed Accuracy (@25°C)	±0.10% of full-scale value ±1/2LSB @99.7% confidence
Temperature Coefficient	±0.24% of full-scale value (0 to 60°C)
Input Impedance	10 MΩ (Voltage Input Only)
Sampling Rate	20 times/sec (60 Hz rejection), 25 times/sec (50 Hz rejection)
Diagnostics	Internal module faults, out-of-range detection, open-loop detection
Normal Mode Rejection	60 dB @50/60 Hz ±1/2%, 30 dB (typical) @50/60 Hz ±5%
Common Mode Rejection	120 dB @ DC or nominal 50/60 Hz, 100 dB (typical) for line frequency ±5%

Power & Environmental Specifications

Parameter	Value
Module Power Consumption (Main)	2.4 W typical, 3.125 W max
Module Power Consumption (Auxiliary – 1C31227G01)	3.84 W typical (8 inputs @ 20 mA each)
Auxiliary Power Supply Voltage	24 VDC
Operating Temperature Range	0 to 60°C (32°F to 140°F)
Storage Temperature Range	-40°C to 85°C (-40°F to 185°F)
Humidity (Non-Condensing)	0 to 95%

Field Wiring & Connections

The 1C31227G01 Personality Module includes a wiring diagram label for easy field installation. Proper wiring techniques, including shielded twisted pair cables, are recommended for noise reduction.

Terminal Block Abbreviations

Abbreviation	Definition
A1 – A8 (+)	Analog Input Positive Terminal (Connected to Field Device +)
A1 – A8 (-)	Analog Input Negative Terminal (Voltage Input Group Only)
P-1 – P-8	Loop Power Output Terminals (For Locally Powered Loops)
CI1 – CI8	Current Input Terminals
SH1 – SH8	Shield Terminal Connection
RSV	Reserved Terminal (No Connections Allowed)
PS+, PS-	Auxiliary Power Supply Terminals