Page 350 - Wago_AutomationTechnology_Volume3_2015_US.pdf

750-439
750-439
4 8-Channel Digital Input Module NAMUR, Ex i

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

Status 13 14 15 16 Status
Error Error
DI 1 ... DI 4 DI 5 ... DI 8
E1 E2 E5 E6 Data contacts

DI 1 + DI 2 DI 5 ... DI 6
0V 0V 0V 0V A
--
0 V 0 V
0V 0V 0V 0V

0 V 0 V
E3 E4 E7 E8

DI 3 + DI 4 DI 7 ... DI 8
750-439
Power jumper contacts
Delivered without miniature WSB markers

The 750-439 Digital Input Module records binary signals from sensors LED displays:
operating in hazardous environments of Zones 0 and 1, permitting channel-by- • Green LED (signal ON)
channel short-circuit and wire-break diagnostics. NAMUR sensors, • Red LED (short-circuit)
optocouplers, mechanical contacts (LED diagnostics can be turned off via • Red flashing LED (wire-break)
control byte) or other actuating elements can be connected via intrinsically safe
devices. Note: The digital input module must only be operated via Ex i 24VDC power
The WAGO-I/O-SYSTEM 750 must be installed either in Zone 2 or in a supply!
non-hazardous area. Each sensor is supplied with a short-circuit-protected
voltage of 8.2V. General information (e.g., installation regulations) on explosion protection is
available in the WAGO-I/O-SYSTEM 750 manuals!
Field and system levels are electrically isolated.

Description Item No. Pack. Technical Data
Unit
8DI NAMUR Ex i 750-439 1 Number of inputs 8
Current consumption, system voltage typ.
(5 VDC) 56 mA
Voltage via power jumper contacts 24 VDC (provided via Ex i power supply
V O = max. 27.3 V)
Sensor supply V V = 8.2 V (± 0.2 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
Miniature WSB Quick marking system Short-circuit current ≤ 8.2 mA (± 0.2 mA)
plain 248-501 5 Short-circuit monitoring > 6.4 mA
with marking see Section 11 Line break monitoring < 0.3 mA
Current consumption, power jumper
contact typ. (24 VDC) 11 mA + load
1.2 W
Power consumption P max.
0.54 W
Power loss P V
Isolation (peak value) U M = 375 V system/supply
Bit width 16 bits (status)