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Alan Bradley 1734-IB4D

Whether it is a new customer or an existing one, they can solve the problem of signal interference by using the high-quality Rayon Automation's Alan Bradley 1734-IB4D four-channel isolated DC digital input module. The input signals of each channel do not share with each other, which can effectively avoid cross-interference between channels and grounding loop issues. Relyon Automation offers products with highly competitive prices and excellent quality. We welcome you to obtain more resources and discounts through us.

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Product Description

Relyon Automation, as a professional supplier, Alan Bradley 1734-IB4D is a highly competitive digital input module in the POINT I/O™ series. It integrates break detection and short circuit diagnosis functions, and by integrating it into your control architecture, it can enhance the availability of the system.

Core advantage

Channel-level isolation
The ordinary 1734-IB8 module has 8 channels that usually share a common terminal. However, the 4 channels of IB4D can each have their own circuits, and they can also be separated from the system backplane. Alan Bradley 1734-IB4D can completely eliminate the ground loop problem.
2. Anti-interference and anti-interference crosstalk capabilities
Near strong electromagnetic interference sources such as frequency converters and large motors, long cables are highly prone to pick up high-frequency noise. With physical isolation, they will not spread to other channels and system backplanes, significantly enhancing the overall robustness of the control system.
3. Wiring Flexibility and Compatibility
Because each channel is completely independent and there is no common terminal limit, under the isolation mechanism, it can connect to DC signals of different voltage levels, and the wiring flexibility is extremely high.

Parameters

Parameter	Specification
Model	Alan Bradley 1734-IB4D
Module Type	4 points
Voltage Category	24V DC
Mechanical Key Position	Position 4
Operating Voltage Range	10…28.8V DC
Input Current (Typical Value)	2.5 mA @ 24V DC
On-state Voltage	≥ 10V DC
Off-state Voltage	≤ 5V DC
On-state Current	≥ 1.5 mA
Off-state Current	≤ 0.5 mA
Channel-to-Channel Isolation Voltage	500V AC
System Isolation Voltage	500V AC
On-state Delay	1.0 ms (nominal)
Off-state Delay	1.5 ms (nominal)
Operating Temperature	0…60°C (32…140°F)
Storage Temperature	-40…85°C (-40…185°F)
Relative Humidity	5…95% (no condensation)
Certification	UL, CSA, CE, ATEX, IECEx (explosion-proof certification)

FAQ：

1. Why is the indicator light flashing red?
The Allen Bradley 1734-IB4D continuously monitors input impedance and has detected a channel-level fault. You need to check for issues such as a loss of side-power, a broken sensor wire, or a short circuit. Any detected anomaly in the current path will trigger a diagnostic alarm.
2. Does it support NPN or PNP sensors?
As a Sink (sinking-type) input module, it is designed to receive signals from PNP (high-side switching) sensors.
3. How can I prevent the distributed I/O system from going offline?

Systematic protection should be implemented across four key dimensions: physical cabling, network architecture, power conditioning, and software configuration. Employ a star or ring redundancy architecture; provide independent, localized power supplies for remote stations—equipped with filtering and isolation devices—to prevent inductive load surges from causing module resets; and appropriately adjust communication watchdog timeout thresholds to enhance fault tolerance.

Welcome to contact us and buy our durable Alan Bradley 1734-IB4D!