Datasheet

750-418, 750-421 / 753-418, 753-421
1
164
2-Channel Digital Input Module 24 V DC
2- to 3-conductor connection; high-side switching; diagnostics
Fig. 750 Series/Technical data see page 24/Delivered without miniature WSB markers
750/753 Series marking see pages 10 ... 11 / 12 ... 13
DI 2
Data contacts
Error DI 2
24 V
V
V
2
Error DI 1
Status DI 1
DI 1
V
V 1
0 V
Status DI 2
Power jumper contacts
01
03
+ +
— —
13
14
C
D
B
A
02 04
750-421
— +
A
DI 2 DI 1
Status
0 V
24 V
Error
10nF
V
V
1
DI
24 V
0 V
V
V
2U
V
10nF 10nF 270pF
10nF
750-418
1
2
3
4
5
6
7
8
The digital input module receives control signals from the field side and supplies
a short-circuit proof voltage to the sensors. The module transfers the control
signals and other information via fieldbus coupler to a supervisory control.
Each input module has a noise-rejection filter.
Each sensor can be supplied separately. A short circuit to ground is indicated
as an error/fieldbus failure and a message is sent to the supervisory control.
After the error has been eliminated the 750-418 Input Module will require an
acknowledgement (performed by the operator via control). The 750-421 Input
Module will acknowledge automatically.
An optocoupler is used for electrical isolation between the bus and the field
side.
Description
Item No.
Pack.
Unit
2DI 24V DC 3.0ms, diagnostics,
acknowledgement
750-418 1
2DI 24V DC 3.0ms, diagnostics 750-421 1
2DI 24V DC 3.0ms, diagnostics,
acknowledgement (without connector)
753-418 1
2DI 24V DC 3.0ms, diagnostics (without
connector)
753-421 1
Accessories
Item No.
Pack.
Unit
753 Series Connectors 753-110 25
Coding elements 753-150 100
Miniature WSB Quick marking system
plain 248-501 5
with marking see pages 352 ... 353
Approvals
Also see "Approvals Overview" in Section 1
Conformity marking 1
Shipbuilding ABS, BV, DNV, GL, KR, LR*, NKK*, PRS*, RINA*
*753 Series, pending
r UL 508
r ANSI/ISA 12.12.01 Class I, Div. 2, Grp. ABCD, T4
4 IEC 60079-0, -15 BR-Ex nA II T4
4 EN 60079-0, -15
EN 61241-0, -1
I M2 / II 3 GD Ex nA IIC T4
Technical Data
Number of inputs 2
No. of outputs 2 for transmitter supply
Current consumption (internal) < 12 mA
Voltage via power jumper contacts 24 V DC (-25 % ... +30 %)
Signal voltage (0) -3 V ... +5 V DC
Signal voltage (1) 15 V ... 30 V DC
Input filter 3.0 ms
Input current (typ.) 3.7 mA
Short-circuit current 1.5 A, undulating because of thermal
overload protection
Sensor supply V
V
DC24 V
Max. output current 0.5 A
Isolation 500 V system/supply
Internal bit width 4 bits in; 4 bits out (750-418 / 753-418)
4 bits in (750-421 / 753-421)
Wire connection CAGE CLAMP
®
Cross sections 0.08 mm² ... 2.5 mm² / AWG 28 ... 14
Stripped lengths, 750/753 Series 8 ... 9 mm / 0.33 in
9 ... 10 mm / 0.37 in
Width 12 mm
Weight 51 g
EMC: 1 - immunity to interference acc. to EN 61000-6-2 (2005)
EMC: 1 - emission of interference acc. to EN 61000-6-4 (2007)
EMC: marine applications
- immunity to interference acc. to Germanischer Lloyd (2003)
EMC: marine applications
- emission of interference acc. to Germanischer Lloyd (2003)
WAGO Kontakttechnik GmbH & Co. KG
Subject to design changes 18.05.2012
Postfach 2880 - D-32385 Minden
Hansastr. 27 - D-32423 Minden
Phone: [phone] E-Mail: [e-mail]
Fax: [phone] www.wago.com