Analog Current Input Modules
FEATURES • Wide Variety of Input Ranges • Standard Package and Pin-out • Single 5V Power Supply • 12-Bit Resolution • Optical Isolation from Input to Output • Intermix With Digital Modules on the Same Rack • Meets the Requirements of IEEE 472 • UL, CSA, CE Certified (OpenLine only)
73L-II 73G-II
CIRCUITRY: Voltage Output
G5: 0-5A
1 CURRENT SOURCE 5A SECONDARY TRANSFORMER
RECTIFY, FILTER, AMPLIFY VOLTAGE CONTROLLED OSCILLATOR
G5: 4-20mA +1
CURRENT ˜ SOURCE – RX
FILTER & BUFFER
2
2
AMP
OPTICAL ISOLATION
VS +5V 3
DC/DC CONVERTER
+5 V SQUAREWAVE OUTPUT GROUND
3 4 5 10KΩ
OUTPUT DRIVER CIRCUIT
VS SQUAREWAVE OUTPUT GROUND 10KΩ 4 5
VS-
V/F
OpenLine®
I/O MODULE PIN # +
LOOP SUPPLY 4-20mA TRANSMITTER TWISTED PAIR
1 2
1 2
+ – 133Ω
ISOLATION
SIGNAL CONDITIONING AND FILTER
CHANNEL A
5.23K 9 MODULE ID
I/O Modules
I/O 30
–
8 RXD 7 TXD
CH. A A/D CH. B
µP
OPTICAL ISOLATION
+ +
LOOP SUPPLY 4-20mA TRANSMITTER TWISTED PAIR
3 4
3 – 4 133Ω
SIGNAL CONDITIONING AND FILTER
10K CHANNEL B
Vs ISOLATED DC/DC CONVERTER
6 Vcc 5 GND
–
Vs –
TERMINAL BLOCK #
G rayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Analog Current Input Modules
SPECIFICATIONS: By Part Number
Type/Function G5, OpenLine® Specifications Number of Inputs Resolution Absolute Accuracy @ 25°C1, 2 Accuracy Drift w/Temp.2 Maximum Offset Maximum Gain (0 to 60°C) Serial Data Format Serial Data Packet Step Response Time3 Input Resistance (Rx) Input Current Range Maximum Overload Logic Voltage Range Maximum Logic Supply Current@5Vdc Module ID (Pin 9) Isolation Voltage Field to Logic Field to Power Module to Module Channel A to Channel B Environmental Conditions Operating Temperature3 Storage Temperature
1 2
Grayhill Part Number 73G-II020 Units bits µA/Count % of full scale PPM/°C PPM/°C 1 Ch., Diff. 12 4.88 +/- 0.2 1 Ch., Diff. 12 3.91 +/- 0.2 1 Ch., Diff. 12 1221 +/- 0.3 2 Ch., S.E. 12 4.88 0.075 2 Ch., S.E. 12 3.91 0.075 2 Ch., S.E. 12 4.88 0.075 73G-II420 73G-II5000 73L-II020 73L-II420 73L-II222
mS ohms mA or A V Vdc mA/Ch. KΩ Vrms Vrms Vrms
+/- 50 +/- 55 12-bit packet — 2.5 133 +/- 1% 0-20mA — 4.5-5.5 150 N/A 2500 2500 2500 — 0 to 60 -25 to 85
+/- 50 +/- 55 12-bit packet — 2.5 133 +/- 1% 4-20mA — 4.5-5.5 120 N/A 2500 2500 2500 — 0 to 60 -25 to 85
+/- 150 +/- 150 12-bit packet — 2.5 .020 +/-.02% 0-5A TRMS — 4.5-5.5 160 N/A 2500 2500 2500 — 0 to 60 -25 to 85
+/- 25 +/- 75 Right Justified, 16-bit 115.2Kb, N, 8, 2 1.5 133/- 1% 0-20mA 6 4.75-5.25 38 5.23 2500 2500 2500 None -40 to 85 -55 to 100
+/- 25 +/- 75 Right Justified, 16-bit 115.2Kb, N, 8,2 1.5 133 +/- 1% 4-20mA 6 4.75-5.25 38 5.23 2500 2500 2500 None -40 to 85 -55 to 100
+/- 25 +/- 75 Right Justified, 16-bit 115.2Kb, N, 8,2 1.5 133 +/- 1% 2-22mA 6 4.75-5.25 38 5.23 2500 2500 2500 None -40 to 85 -55 to 100
°C °C
Includes offset, gain, non-linearity and repeatability error terms. Accuracy and drift graphs are available in Bulletin #753. 3 Time required for output to change to within 1% of final value.
Available from your local Grayhill Distributor. For prices and discounts, contact a local Distributor, a local Sales Office or Grayhill.
I/O Modules
I/O 31
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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