Page 256 - Wago_AutomationTechnology_Volume3_2015_US.pdf

750-470, 750-473

4 2-Channel Analog Input Module 0/4-20 mA

254 Single-ended (S.E.), short-circuit protected

13 14
A
Function AI 1 C Function AI 2
B
Error AI 1 D Error AI 2
AI1 AI2
Data contacts
1 5
AI 1 AI 2 AI 1 AI 2 AI
U 1 U 2
V V 270pF
I
2 6
V 1 V 2 V v 1 V v 2 V v 10nF
V V
24 V 24 V
0V 0V
220nF 10nF
3 7 A
Logic
0 V D
0 V 0 V 10nF
Error
S S Function
4 8
Shield Shield Shield Shield
(screen) (screen) (screen) (screen)
750-470 750-470
Power jumper contacts
Delivered without miniature WSB markers
The analog input module receives signals with the standardized values This module can supply the voltage for 2-conductor transducers.
0-20mA and 4-20mA. The output signal is electrically isolated and will transmit
with a 12-bit resolution. A short-circuit to the power supply is indicated as error/fieldbus failure
and a message is sent to the supervisory control.
The 24V supply for the field is derived from the power jumper contacts.

The shield (screen) is directly connected to the DIN rail.

Description Item No. Pack. Technical Data
Unit
2AI 0-20mA, S.E., S. C. Protec. 750-470 1 Number of inputs 2
2AI 0-20mA, S.-E., S. C. Protec., 60 Hz 750-470/005-000 1 Power supply via system voltage DC/DC
2AI 4-20mA, S.-E., S.C.Protec. 750-473 1 Current consumption typ. (internal) 100 mA
2AI 4-20mA, S.-E., S. C. Protec., 60 Hz 750-473/005-000 1 Signal current 0 - 20mA (750-470)
4 - 20mA (750-473)
Input voltage non-linear, overload protected
V = 1.2 V + 100 Ω x I meas.
Input resistance (typ.) < 160 Ω / 20 mA
Resolution 12 bits
Conversion time (typ.) 80 ms
Measuring error (25 °C) < ± 0.1 % of the full scale value
Temperature coefficient < ± 0.01 % / K of the full scale value
Accessories Item No. Pack. Isolation 500 V field/system
Unit Bit width 2 x 16 bits data
Miniature WSB Quick marking system 2 x 8 bits control/status (optional)
plain 248-501 5 Input filter 50Hz (750-470, 750-473)
with marking see Section 11 60Hz (750-470/005-000,
750-473/005-000)
Noise rejection at sampling frequency < -100 dB
Noise rejection above sampling frequency < -40 dB
Approvals Wire connection CAGE CLAMP ®
Cross sections 0.08 mm² ... 2.5 mm² / AWG 28 ... 14
Conformity marking 1 Strip lengths 8 ... 9 mm / 0.33 in
Korea Certification Width 12 mm
Marine applications (versions upon request) ABS, BV, DNV, GL, KR, LR, NKK, PRS, RINA Weight 55.5 g
r UL 508 EMC immunity of interference acc. to EN 61000-6-2, marine applications
r ANSI/ISA 12.12.01 Class I, Div. 2, Grp. ABCD, T4 EMC emission of interference acc. to EN 61000-6-3, marine applications
4 TÜV 07 ATEX 554086 X I M2 Ex d I Mb,
II 3 G Ex nA IIC T4 Gc,
II 3 D Ex tc IIIC T135°C Dc
Permissible ambient temperature 0 °C ... +60 °C
IECEx TUN 09.0001 X Ex d I Mb,
Ex nA IIC T4 Gc,
Ex tc IIIC T135°C Dc
Permissible ambient temperature 0 °C ... +60 °C