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Check similar products or call us on +44 20 4570 3439 for assistance
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | KFD2-SR2-2.W.SM |
| Alternative Part Number | KFD2SR22WSM |
| Manufacturer | Pepperl + Fuchs |
| Signal Type | Digital Input |
| Supply Voltage | 20 ... 30 V DC |
| Power Consumption | ≤ 1.5 W |
| Input Connection | Input I: terminals 1+, 2+, 3-; Input II: terminals 4+, 5+, 6- |
| Output Connection | Output I: terminals 7, 8, 9; Output II: terminals 10, 11, 12 |
| Relay | 2 changeover contacts |
| Contact Loading | 253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load |
| Minimum Switch Current | 2 mA / 24 V DC |
| Energised/De-energised Delay | Approx. 20 ms / Approx. 20 ms |
| Mechanical Life | 10^7 switching cycles |
| Frequency Range | ≤ 2 kHz |
| Ambient Temperature | -20 ... 60 °C (-4 ... 140 °F) |
| Degree of Protection | IP20 |
| Dimensions | 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in), housing type B2 |
| Mounting | On 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Directive Conformity | Electromagnetic compatibility Directive 2004/108/EC EN 61326-1:2006, Low voltage Directive 2006/95/EC EN 61010-1:2010 |
| Electromagnetic Compatibility | NE 21:2006 |
| Degree of Protection | IEC 60529:2001 |
The Pepperl + Fuchs KFD2-SR2-2.W.SM is a versatile and reliable 2-channel signal conditioner designed for monitoring standstill and rotational direction in a variety of industrial applications. This unit operates with a 24 V DC supply and is compatible with PNP/push-pull, dry contacts, or NAMUR inputs, providing flexibility for integration into existing systems.
Featuring selectable frequency trip values, the KFD2-SR2-2.W.SM can be tailored to specific operational requirements, ensuring precise monitoring and control. The device is equipped with two relay contact outputs, which can be programmed to respond to different operational states, including standstill and rotation direction.
The KFD2-SR2-2.W.SM includes a start-up override function, which can be set to either 5 or 20 seconds, allowing for a smooth transition during system start-up. The unit's mode of operation can be easily selected using the front-mounted DIP switches, making it simple to configure for different scenarios.
Designed to meet the demands of industrial environments, the KFD2-SR2-2.W.SM operates within an ambient temperature range of -20 to 60°C and is housed in a robust enclosure with an IP20 degree of protection. Its compact dimensions allow for convenient mounting on a 35 mm DIN rail, facilitating easy installation and maintenance.
With its combination of functionality, ease of use, and durable construction, the Pepperl + Fuchs KFD2-SR2-2.W.SM is an excellent choice for engineers and technicians looking to enhance the safety and efficiency of their machinery and processes.
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Frequently Asked Questions
What is the purpose of the KFD2-SR2-2.W.SM?
The KFD2-SR2-2.W.SM is a signal conditioner used for standstill and rotational direction monitoring. It accepts input frequency pulses and triggers an output when the frequency drops below a selected value. It can also determine rotation direction and has a start-up override feature.
How can I program the device?
Programming can be done via DIP switches that are accessible on the front of the device. These switches allow you to set the trip values for frequency and select the mode of operation, including standstill monitoring with start-up override or rotation direction monitoring.
What type of inputs does the device accept?
The device accepts PNP/push-pull, dry contacts, or NAMUR inputs for monitoring frequency pulses.
What are the power requirements for this device?
The device requires a 24 V DC supply with a power consumption of less than or equal to 1.5 W.
What type of outputs does the device provide?
The device provides two relay contact outputs, which can be configured for various monitoring and control applications.
Can the device detect the direction of rotation?
Yes, the device can detect the direction of rotation by using a 90° phase difference between pulse input signals, with a minimum overlapping of 125 µs.
What is the frequency range the device can handle?
The device can handle a frequency range of up to 2 kHz, with selectable trip values for standstill monitoring.
What is the ambient temperature range for the device?
The device can operate within an ambient temperature range of -20 to 60 °C (-4 to 140 °F).
How is the device mounted?
The device is designed to be mounted on a 35 mm DIN mounting rail according to EN 60715:2001.
What is the degree of protection for the device?
The device has a degree of protection of IP20, suitable for indoor use where it is not exposed to water or dust.
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