Designed for integration into standard K-bus networks, the Beckhoff KL4022 enables high-precision processing of current loop control signals. This terminal converts 12-bit digital values from the automation controller into isolated analog current outputs within the standard 4 to 20 mA range. Its single-ended topology, compact housing, and low conversion latency make it highly suitable for demanding industrial actuator control, valve positioning, and motor drive setpoint configuration.
| Parameter | Value / Rating |
|---|---|
| Manufacturer | Beckhoff Automation |
| Model Number | KL4022 |
| Signal Range | 4 to 20 mA |
| Number of Channels | 2 |
| Resolution | 12-bit |
| Load Impedance | Less than 500 Ohm |
| Conversion Time | approx. 1.5 ms |
| Output Error | Less than +/- 0.1% (relative to full-scale value) |
| Power Supply | 24 V DC via power contacts (or 15 V DC via KL9515 supply terminal) |
| K-Bus Current Consumption | typ. 75 mA |
| Electrical Isolation | 500 V (K-bus / signal voltage) |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Country of Origin | Germany |
| Weight | approx. 80 g |
| Shipping Weight (Calculated) | 0.25 kg |
| Terminal Point | Signal Assignment | Description |
|---|---|---|
| 1 | OUT 1 | Analog Output Channel 1 (+) |
| 5 | 0V (1) | Analog Output Channel 1 ground (-) |
| 2 | OUT 2 | Analog Output Channel 2 (+) |
| 6 | 0V (2) | Analog Output Channel 2 ground (-) |
| 3 | +24 V | Power Contact Connection (+24 V DC) |
| 7 | 0 V | Power Contact Connection (0 V DC) |
| 4 | Shield | Shield contact point (connected to DIN rail) |
| 8 | Shield | Shield contact point (connected to DIN rail) |
The KL4022 utilizes Beckhoff's legacy K-bus backplane communication system. If transitioning to an EtherCAT infrastructure, the direct equivalent is the EL4022. Note that EL-series terminals utilize the E-bus and cannot reside on standard KL-series couplers (e.g., BK9000, BK3120) without active E-bus/K-bus converter couplers.
Since the KL4022 is a single-ended terminal sharing a common internal ground loop, noise injected into the 0 V signal reference on one loop can cause cross-talk or offset drift on the secondary channel. For field installations with significant ground potential differences, isolated signal conditioning barriers must be installed between the KL4022 and the end-actuator to prevent loop degradation.
Ensure that shielding is correctly terminated. Terminal points 4 and 8 are connected to the mounting rail. To guarantee sufficient noise rejection, the standard 35 mm DIN rail must be connected to the central control cabinet ground with low-impedance copper braided strap. Ensure K-bus power contacts are adequately populated with 24 V DC; voltage drops below 18 V DC will cause conversion errors or terminal fault signals within TwinCAT.
CRITICAL WARNING: ELECTRICAL HAZARD
Isolate and lock out all power supplies to the system before inserting or removing K-bus components. Modifying the physical configuration or terminal assembly while the power is active can induce voltage spikes, resulting in damage to the internal bus driver circuitry or physical terminal contacts.
Mount the terminal onto the 35 mm DIN rail (EN 60715) by sliding the terminal's rear slot onto the rail guide until the locking tab audibly clicks.
Align the terminal laterally with the adjacent Bus Terminal block to engage the tongue-and-groove joint and establish continuous electrical contact via the side-mounted gold contacts.
Insert field connection cables into the cage-clamp connectors using an appropriate industrial screwdriver. Release the mechanism to secure wire connection.
Connect the analog loop shielding directly to contacts 4 or 8 to guarantee direct path grounding through the DIN rail structure.
Global Express Shipping
Returns & Warranty
Manufacturer: BECKHOFF
Product No.: KL4022
Country of origin:Germany
Product Type: Analog Output Modules
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
Designed for integration into standard K-bus networks, the Beckhoff KL4022 enables high-precision processing of current loop control signals. This terminal converts 12-bit digital values from the automation controller into isolated analog current outputs within the standard 4 to 20 mA range. Its single-ended topology, compact housing, and low conversion latency make it highly suitable for demanding industrial actuator control, valve positioning, and motor drive setpoint configuration.
| Parameter | Value / Rating |
|---|---|
| Manufacturer | Beckhoff Automation |
| Model Number | KL4022 |
| Signal Range | 4 to 20 mA |
| Number of Channels | 2 |
| Resolution | 12-bit |
| Load Impedance | Less than 500 Ohm |
| Conversion Time | approx. 1.5 ms |
| Output Error | Less than +/- 0.1% (relative to full-scale value) |
| Power Supply | 24 V DC via power contacts (or 15 V DC via KL9515 supply terminal) |
| K-Bus Current Consumption | typ. 75 mA |
| Electrical Isolation | 500 V (K-bus / signal voltage) |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Country of Origin | Germany |
| Weight | approx. 80 g |
| Shipping Weight (Calculated) | 0.25 kg |
| Terminal Point | Signal Assignment | Description |
|---|---|---|
| 1 | OUT 1 | Analog Output Channel 1 (+) |
| 5 | 0V (1) | Analog Output Channel 1 ground (-) |
| 2 | OUT 2 | Analog Output Channel 2 (+) |
| 6 | 0V (2) | Analog Output Channel 2 ground (-) |
| 3 | +24 V | Power Contact Connection (+24 V DC) |
| 7 | 0 V | Power Contact Connection (0 V DC) |
| 4 | Shield | Shield contact point (connected to DIN rail) |
| 8 | Shield | Shield contact point (connected to DIN rail) |
The KL4022 utilizes Beckhoff's legacy K-bus backplane communication system. If transitioning to an EtherCAT infrastructure, the direct equivalent is the EL4022. Note that EL-series terminals utilize the E-bus and cannot reside on standard KL-series couplers (e.g., BK9000, BK3120) without active E-bus/K-bus converter couplers.
Since the KL4022 is a single-ended terminal sharing a common internal ground loop, noise injected into the 0 V signal reference on one loop can cause cross-talk or offset drift on the secondary channel. For field installations with significant ground potential differences, isolated signal conditioning barriers must be installed between the KL4022 and the end-actuator to prevent loop degradation.
Ensure that shielding is correctly terminated. Terminal points 4 and 8 are connected to the mounting rail. To guarantee sufficient noise rejection, the standard 35 mm DIN rail must be connected to the central control cabinet ground with low-impedance copper braided strap. Ensure K-bus power contacts are adequately populated with 24 V DC; voltage drops below 18 V DC will cause conversion errors or terminal fault signals within TwinCAT.
CRITICAL WARNING: ELECTRICAL HAZARD
Isolate and lock out all power supplies to the system before inserting or removing K-bus components. Modifying the physical configuration or terminal assembly while the power is active can induce voltage spikes, resulting in damage to the internal bus driver circuitry or physical terminal contacts.
Mount the terminal onto the 35 mm DIN rail (EN 60715) by sliding the terminal's rear slot onto the rail guide until the locking tab audibly clicks.
Align the terminal laterally with the adjacent Bus Terminal block to engage the tongue-and-groove joint and establish continuous electrical contact via the side-mounted gold contacts.
Insert field connection cables into the cage-clamp connectors using an appropriate industrial screwdriver. Release the mechanism to secure wire connection.
Connect the analog loop shielding directly to contacts 4 or 8 to guarantee direct path grounding through the DIN rail structure.
| Product Image | Model Number / Title | Condition | Availability | Action |
|---|---|---|---|---|
|
ABB 3BSE008546R2 AO820-eA S800 Analog Output Module | Original New | In Stock | View Details |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
Replacing a 1756-L73 does not automatically mean upgrading its firmware. This guide compares v19.013, v21.011 and v31.011, focusing on project compatibility, HMI communications, legacy networks and...
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Integrate Allen-Bradley CompactLogix, Caterpillar ATS, and generators into DeltaV DCS over Modbus RTU. Covers ProSoft MVI69-MCM, Miille DIN266 gateways.
ONS instruction fires but the OTE coil never latches in Studio 5000 because the one-shot is only true for one scan. Use OTL/OTU or seal-in logic instead.
Configure Allen-Bradley Kinetix 5500 servo drives on EtherNet/IP. Covers CIP Sync, IEEE 1588 V2 timing, Stratix selection, DLR topology, and HMI.
A moving-average filter is the sliding-window smoother most instrument engineers drop into DCS and PLC analog paths. Here is how the window works, how N and sample time set lag, and when a...
