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CHAPTER 1: BEFORE YOU START
Analog inputs
Power supply
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
Number of Analog
D20E-C
Inputs
D20E-A
Input Options
±5.0 VDC, ±1.0 mA, ±5.0 mA, ±10.0 mA, ±20.0 mA
D20E Analog Input types are defined exclusively by the hard-wired scaling
resistor installed at the factory. The A/D is fixed at ± 5V. Normal scaling
parameters can be applied in the Publisher configuration.
Note: Refer to Chapter 1, Ordering guides section for complete set of
options currently available.
Accuracy
±0.1% FS (current), ±0.05% FS (voltage)
Input Impedance
≥1.0 MΩ (Voltage input)
Resolution
15-bit plus sign
Input Conversion Time
22 ms (per input)
Local Indications
Blue LED ADC conversion:
• D20E-A
• D20E-C: 1 LED
CMRR
90dB (at 50/60 Hz)
NMRR
60dB (at 50/60 Hz)
Insulation/Isolation
700 VDC
>100 MΩ
Alarm
High/Low alarm with pseudo digital input indication
Auto-Calibration
3-point reference
Conducted Immunity
As per:
• IEEE C37.90.1
• IEC 61000-4-4
• IEC 61000-4-5
• IEC 61000-4-6
• IEC 61000-4-16
DC Input
20 to 60 VDC range, nominal 24/48 VDC
DC Input Mode
Dual mirror inputs DC1 and DC2; single power supply
Polarity Protection
Reverse input
Power
5 W typical
Current
0.25 A maximum
Insulation/Isolation
2250 VDC
>100 MΩ
Local Indications
DC1 and DC2 Blue LEDs; Power Supply output ON Red LED
Conducted Immunity
As per:
• IEEE C37.90.1
• IEC 61000-4-4
• IEC 61000-4-5
• IEC 61000-4-6
• IEC 61000-4-16
• IEC 61000-4-17
• IEC 61000-4-29
:
differential inputs
16
: 32 differential inputs
:
2 LEDs
GE INFORMATION
29
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