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Specification & Description
| Specification | Description |
|---|---|
| Part Number | VAA-4EA-KF-ZE/R |
| Manufacturer | Pepperl + Fuchs |
| Series | VAA |
| Type | Interface Sensor |
| Operating Voltage Range | 26.5 to 31.6 V |
| Operating Current | ≤110 mA |
| Inputs | 4 inputs (PNP) |
| Outputs | 4 relay outputs |
| Output Load Capacity | Up to 8 A (per module) |
| AS-Interface Specification | V2.0 |
| Required Master Specification | ≥ V2.0 |
| UL File Number | E87056 |
| Input Type | 4 inputs for 2- or 3-wire sensors (PNP), DC |
| Output Type | 4 relay outputs with safe isolation according to EN 50178 (250 V AC) |
| Contact Loading | 2 A/30 V DC per output, 2 A/250 V AC per output |
| Life Span | Mechanical: 30 x 10^6 switching cycles, Electrical: varies with load and conditions |
| Programming Profile | S-7.F |
| IO Code | 7 |
| ID Code | F |
| Data Bits | Input/output configuration via AS-Interface |
| Parameter Bits | Programmable via AS-i, including communication monitoring |
| Ambient Operating Temperature | -25 ... 70 °C (-13 ... 158 °F) |
| Storage Temperature | -25 ... 85 °C (-13 ... 185 °F) |
| Degree of Protection | IP20 |
| Connection | Removable coded terminals, Power Rail |
| Mounting | DIN mounting rail |
| Mass | 170 g |
| Compliance with Standards and Directives | Conforms to EN 60529 for degree of protection |
The Pepperl + Fuchs VAA-4EA-KF-ZE/R is a high-performance interface sensor module that forms part of the VAA series, designed to facilitate seamless integration into AS-Interface systems. This module is equipped with four inputs (PNP) and four relay outputs, making it a versatile solution for a wide range of industrial automation applications.
Crafted with precision, the module boasts a compact housing that includes removable, coded terminals for straightforward installation and maintenance. The unit's slim 40 mm profile ensures it occupies minimal space within a control cabinet, allowing for efficient use of space.
The VAA-4EA-KF-ZE/R operates within a voltage range of 26.5 to 31.6 V and maintains an operating current of ≤110 mA. It features a robust design that can handle relay output loads up to 8 A per module, providing reliable performance even in demanding environments.
For ease of use, the module includes a Power Rail connection for AS-Interface communication and a dedicated addressing jack for device configuration. The module's functionality is further enhanced by its communication monitoring capabilities, which ensure safety by turning off outputs in the event of a communication interruption.
The interface sensor module is also equipped with LED indicators for bus, inputs, and outputs, offering at-a-glance diagnostic information to users. These indicators help in quick troubleshooting and monitoring of the system's operational status.
Designed to meet the requirements of modern industrial settings, the Pepperl + Fuchs VAA-4EA-KF-ZE/R module is a reliable and efficient choice for those seeking to optimise their automation systems with high-quality interface sensors.
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Frequently Asked Questions
What are the electrical specifications of this interface sensor?
The interface sensor operates at a rated voltage of 26.5 to 31.6 V from AS-Interface and has a rated operating current of ≤ 110 mA.
Can this module be used with both 2- and 3-wire sensors?
Yes, the module has 4 inputs that can be used with either 2- or 3-wire sensors (PNP), with an external power supply.
What type of outputs does this module have?
The module is equipped with 4 relay outputs, each capable of handling 2 A/30 V DC or 2 A/250 V AC per output.
How does the module indicate its operating status?
The module has dual-LED indicators for power and fault (PWR/FAULT), as well as additional LED indicators for each input and output to show their switching states.
What is the function of the AS-Interface certificate included with this module?
The AS-Interface certificate ensures that the module complies with the AS-Interface network standard specifications, allowing for seamless integration into AS-Interface systems.
How is the module mounted in a cabinet?
The module is designed for easy installation by snapping onto a 35mm DIN Rail per EN 50022, with an integrated Power Rail for the AS-Interface signal transmission.
What is the purpose of the addressing jack on the module?
The addressing jack is used for address configuration, allowing for easy setup and integration of the module into an AS-Interface network.
What are the ambient operating temperature ranges for this module?
The module can operate within an ambient temperature range of -25 to 70 °C (-13 to 158 °F), with a storage temperature range of -25 to 85 °C (-13 to 185 °F).
What level of protection does the module offer?
The module has a degree of protection rated at IP20, indicating it is protected against solid objects larger than 12.5 mm but not against water.
How can the outputs be de-energised in the event of a communication failure?
The module features an integrated watchdog that de-energises the outputs if communication on the AS-Interface cable is interrupted for more than 80 ms. This function can be disabled by changing the parameter bit P0.
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