Description
The KS4004 analog output terminal is designed to generate highly accurate analog signals within the range of 0 to 10 V. Engineered as part of the Beckhoff KS series, this 4-channel module features a pluggable wiring level that permits swift replacement during maintenance without disconnecting active field wiring. The terminal processes electrical signals with a resolution of 12 bits and transfers them, electrically isolated, to the process level. The power required to operate the module is drawn directly from the K-bus, eliminating the need for separate external power contacts.
This single-ended output terminal is optimized for compact control cabinets where high-density analog output signals and quick-disassembly capabilities are critical. With built-in short-circuit protection and an exceptionally low output error margin, the KS4004 guarantees stable command signal delivery to actuator drives, control valves, and other analog-driven field devices in complex process environments.
Features
- Four analog output channels with a 0 to 10 V signal range.
- Pluggable connection level for easy installation and tool-free module swap-outs.
- Internal power supply driven directly via the Beckhoff K-bus interface.
- Short-circuit proof outputs designed to handle loads greater than 5 kOhm.
- High-accuracy performance with a relative output error of less than +/-0.1 % of the full-scale value.
- No address or hardware configuration required prior to deployment.
Applications
- Industrial positioning systems and actuator control loops.
- Variable frequency drive (VFD) speed reference signaling.
- HVAC dampers and climate control system modulation.
- Standard machine building and process plant automation.
Technical Specifications
Manufacturer
| BECKHOFF |
Part Number / Model
| KS4004 |
Technology
| Single-ended |
Number of Outputs
| 4 |
Power Supply
| Via the K-bus |
Signal Voltage
| 0 to 10 V |
Load
| > 5 kOhm (short-circuit proof) |
Output Error
| < +/-0.1 % (relative to end value) |
Resolution
| 12 bit |
Conversion Time
| Approx. 2 ms |
Electrical Isolation
| 500 V (K-bus/signal voltage) |
Current Consumption K-Bus
| Typ. 85 mA |
Current Consumption Power Contacts
| None (no power contacts) |
Bit Width in Process Image
| Output: 4 x 16 bit data (optional 4 x 8 bit control/status) |
Operating Temperature
| 0 to +55 degC |
Storage Temperature
| -25 to +85 degC |
Relative Humidity
| 95 %, no condensation |
Vibration and Shock Resistance
| Conforms to EN 60068-2-6 / EN 60068-2-27 |
EMC Immunity and Emission
| Conforms to EN 61000-6-2 / EN 61000-6-4 |
Protection Rating
| IP20 (variable installation position) |
Design
| Terminal housing with pluggable wiring level |
Material
| Polycarbonate |
Installation
| 35 mm DIN rail (conforming to EN 60715) with lock |
Dimensions (L x W x H)
| 6.8 cm x 1.2 cm x 10.0 cm |
Weight
| 0.085 kg |
Connections and Interfaces
| Connection Property |
Specification |
Wiring Method
| Spring actuation by screwdriver |
Solid Wire Cross-Section
| 0.08 to 1.5 mm² (AWG 28 to 16) |
Stranded Wire Cross-Section
| 0.08 to 1.5 mm² (AWG 28 to 16) |
Fine-Wire Cross-Section
| 0.14 to 1.5 mm² (AWG 26 to 16) |
Stripping Length
| 9 to 10 mm |
Installation Guidelines
- Mount the module vertically or horizontally on a standard 35 mm DIN rail conforming to EN 60715. Ensure the locking slide mechanism snaps securely into place.
- To prevent electromagnetic interference on sensitive 0-10 V analog lines, use shielded cables and connect the shield to a low-resistance ground terminal near the entry point of the control panel.
- Ensure that no field wiring is connected when plugging or unplugging the terminal wiring level to avoid transient electrical spikes.
Compliance and Certifications
- CE
- UL
- ATEX: II 3 G Ex nA IIC T4 Gc