Page 346 - Wago_AutomationTechnology_Volume3_2015_US.pdf

750-435
750-435
4 1-Channel Digital Input Module NAMUR, Ex i

344 Proximity switch acc. to DIN EN 60947-5-6

13 14
Status DI
Error DI
Data contacts
E1

DI

A
+

+

V V
750-435
Power jumper contacts
Delivered without miniature WSB markers

The digital input module receives the binary signals from sensors operating in LED indicators:
hazardous environments of Zones 0 and 1. • Green LED (signal on)
NAMUR sensors, optocouplers, mechanical contacts (in conjunction with • Red LED (short circuit, wire breakage)
resistance coupling module, available as an accessory) or other actuating
elements can be connected by means of approved intrinsically safe devices. Field and system levels are electrically isolated.
The WAGO-I/O-SYSTEM 750 must be installed either in Zone 2 or in a
non-hazardous area. Note:
Each sensor is supplied with a short-circuit-protected 8.2 V supply. Only use the digital input module in connection with the 24VDC Ex i Supply
Module!
General information (e.g., installation regulations) on explosion protection is
available in the WAGO-I/O-SYSTEM 750 manuals!

Description Item No. Pack. Technical Data
Unit
1DI NAMUR Ex i 750-435 1 Number of inputs 1
Current consumption, system voltage typ.
(5 VDC) 2.5 mA
Voltage via power jumper contacts 24 V DC (provided via Ex-i supply
U O = max. 27.3 V)
8.2 VDC
Sensor supply V V
Signal current (0) ≤ 1.2 mA
Signal current (1) ≥ 2.1 mA
Input filter 3.0 ms
Switching hysteresis 0.2 mA
Open-circuit voltage 8.2 VDC
Input resistance 1 kΩ
Accessories Item No. Pack. Input pulse duration ≥ 5 ms
Unit Input pulse separation ≥ 3 ms
Resistance coupling module 288-936 15 Short-circuit current ≤ 8.2mA
Miniature WSB Quick marking system Short-circuit monitoring > 6.4mA
plain 248-501 5 Line break monitoring < 0.2 mA
with marking see Section 11 Current consumption, power jumper
contact typ. (24 VDC) 13 mA + load
0.5 W
Power consumption P max.
0.37 W
Power loss P V
Isolation U M = 375 V system/supply
Bit width 2 bits; (1 bit status, 1 bit error: short circuit/
wire break)