GE Mark VIeS - YUAA Ma;Hart Specifications

YUAA Specifications (continued)
Item
Specification
Group Isolation
Exists internally between the processor and the IONet ports to break ground loops, using high
resistance barriers
Channel Terminal Voltage
Operation is guaranteed only when channel terminals are connected to signal voltages between 20 to
-11 volts with respect to COM. For voltages outside this range, an external resistor may be required for
correct operation. Refer to the section Digital Inputs and Outputs.
Signals above 24.5 or below -13 V with respect to COM will affect performance across other channels
and could cause long term degradation of the performance. Voltages beyond ± 28 V are clamped by
transorbs for protection.
YUAA mA/HART Specifications
Item
Specification
Number of Channels
16 channels per terminal board possible as inputs or outputs
Input Span
4-20 mA dc with allowance for 0-24 mA to cover NAMUR fault conditions
Input Converter Resolution 16-bit analog-to-digital converter
HART Rx and Cx Values
250 ohms in parallel with 5000 pF for HART inputs
14 kohms with 11000 pF for HART current outputs
Scan Time
Normal scan 5 ms (200 Hz). Note that controller frame rate is 100 Hz.
Measurement Accuracy Better than 0.1% full scale over the temperature range -40 to 70°C.
Noise Suppression on Inputs
A software filter, using a two-pole, low-pass filter, is configurable for: off (0), .75, 1.5 Hz, 3 Hz, 6 Hz, 12
Hz for mA and HART inputs
Common Mode Rejection
Ac common mode rejection 60 dB at 60 Hz, with up to ±5 V common mode voltage. Dc common mode
rejection 80 dB with -5 to +7 peak V common mode voltage
Common Mode Voltage Range
±5 V
Output Converter 16-bit D/A converter with 0.5% accuracy over 0 to 24 mA possible span
Output Load 800 Ω for 0-20 mA output
YUAA Universal I/O Modules GEH-6855_Vol_II System Guide 173
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