KEBA PS242 (often written as KEBAPS242) power module I. Product Overview
KEBA PS242 (often written as KEBAPS242) power module I. Product Overview
The KEBA PS242 is a 24V DC system power module specifically designed for the Kemro K2-200/K2-400 series from the Austrian KEBA (Kemba) brand. It is part of the KeConnect I/O accessory power supply unit and is tailored for medium-sized industrial equipment such as injection molding, die-casting, machine tools, and robots. The module is installed using a backplane slot system and is directly integrated into the KEBA controller frame. It provides a stable and isolated 24V DC power supply for the CPU, I/O modules, bus interfaces, and peripheral sensors, serving as the core power supply for the entire control system.
II. Core Functions
Wide-range AC input, universal worldwide
Supports 100–240V AC, 50/60Hz for full voltage range automatic adaptation, compatible with global industrial power grids, no manual adjustment required, suitable for deploying devices in different countries.
Stable 24V DC isolated output
Outputs a 24V DC regulated power supply, providing power to the controller, I/O modules, HMI, sensors, and actuators. The input/output is fully electrically isolated, blocking grid interference, and protecting the control loop safety.
Medium-power continuous power supply
Rated output 24V DC / 2.5A, maximum power 60W, suitable for the overall power supply requirements of small and medium-sized KEBA systems (CPU + 8–12 I/O modules), balancing energy efficiency and load capacity.
Comprehensive protection mechanism
Integrated overvoltage, overload, short circuit, overheating, reverse polarity protection; automatically shuts off the output and locks it during faults, automatically recovers after fault removal, avoiding system damage and reducing downtime risks.
Industrial-grade efficient energy saving
Uses high-frequency switching power supply technology, efficiency ≥ 88%, low energy consumption, low heat generation; natural convection cooling (no fan), avoiding dust accumulation, improving long-term operational reliability.
LED status diagnosis
Equipped with a normal power LED (green) and a fault LED (red): Green constantly on indicates normal output; red lighting indicates overvoltage / overload / short circuit / overheating, quickly locating power supply faults.
Backplane bus integration, plug-and-play
Connects to the controller through the KEBA dedicated K-bus backplane bus, automatically identified, no configuration required; supports hot swapping, can directly replace modules during operation without stopping or powering off.
Adaptation to harsh industrial environments
Strengthened PCB, industrial-grade components, fully sealed dust-proof design, anti-vibration / shock resistance; wide temperature range suitable for workshop high-temperature, high-humidity, and high-dust scenarios, supports 24-hour continuous operation.
III. Technical Specifications (Official Standard Specifications)
Model: PS242 (abbreviated as KEBAPS242)
Belongs to series: Kemro K2-200/K2-400 platform (KeConnect I/O companion)
Input voltage: 100–240V AC, 50/60Hz (wide voltage automatic adaptation)
Output voltage: 24V DC (regulated, accuracy ±1%)
Rated output current: 2.5A (continuous)
Maximum output power: 60W
Isolation method: Input / output electrical isolation (enhanced anti-interference)
Protection functions: Overvoltage, overload, short circuit, overheating, reverse polarity
Efficiency: ≥88%
Cooling method: Natural convection (no fan)
Status indication: Green LED (power normal), red LED (fault)
Communication interface: KEBA K-bus backplane bus
Installation method: Backplane slot installation of K2 series controllers
Operating temperature: 0℃–+55℃
Storage temperature: –40℃–+70℃
Humidity requirement: 10%–95% (no condensation)
Protection grade: IP20 (module front)
Size (width × height × depth): Approximately 62mm × 160mm × 131mm
Weight: Approximately 1800g
Certifications: CE (EMC/LVD), RoHS, UL 508, EN 61131-2
IV. Design Features
System-specific integrated design
Designed specifically for KEBA K2-200/K2-400 series controllers, direct plug-in installation on the backplane, no additional wiring required, simplifies cabinet layout, saves space; perfectly compatible with the K2 series, new and old systems can be directly replaced. Full-process industrial-level testing (high temperature, low temperature, vibration, shock, EMC), MTBF ≥ 500,000 hours, suitable for 24-hour continuous operation scenarios of injection molding, die-casting, machine tools, etc.
Easy maintenance with low failures
LED intuitive diagnosis, quickly determines power supply status; hot-swappable design supports non-stop replacement, shortens maintenance time; fanless structure avoids dust blockage, reduces failure probability.
Strong isolation and anti-interference
Input/output completely isolated, effectively suppresses grid peaks, frequency converter interference, motor start-stop noise, suitable for high electromagnetic interference industrial sites, ensuring system stable operation.
Compact and efficient for small and medium-sized systems
Compared with PS240/A (5A/120W), PS242 is a compact low-power version, the same volume but more power is suitable for small and medium-sized systems, avoiding overloading, improving energy efficiency and reducing costs.
V. Typical application scenarios
Small and medium-sized injection molding machine control system
Power supply for KePlast small injection molding machine controller, I/O module, temperature sensor, pressure sensor, electromagnetic valve coil.
Electrical control system of die-casting equipment
Drive KeControl die-casting machine CPU, bus module, hydraulic valve control module, safety door detection sensor.
Industrial machine tools / processing centers
Power supply for KeMotion small motion controller, servo drive, I/O module, spindle encoder, cooling pump control loop.
KEBA standard automation workstation
Adapt to small workstations with KEBA controller + I/O module, such as robot workstations, packaging lines, hydraulic control systems, etc.
VI. Installation and wiring key points Installation steps
First installation: Power off the controller, align the K2 series backplane slot and push it in smoothly, then lock with the clip;
Replacing the module: Supports hot swapping. Simply pull out the old module and insert the new one. The controller will automatically recognize it, and no restart is required.
Wiring specification
AC input: L (hot wire), N (neutral wire), PE (ground wire) connected to a 100–240V AC power grid, with reliable grounding of the ground wire;
DC output: Positive (+) and negative (-) poles of 24V DC connected to the system's 24V common bus to supply power to the CPU and I/O modules;
Wire diameter selection: AC side 1.0–1.5mm², DC side 1.5–2.5mm². Separate strong and weak current wiring to reduce interference.
VIII. Troubleshooting Guide
Green LED not lit, no output
Check if the AC input voltage is normal and if the wiring is loose;
Confirm if the module is inserted properly and the K-bus bus connection is normal;
Check if it is due to overheating protection shutdown, and restart after power off for cooling.
Red LED lit, abnormal output
Immediately cut off the power supply, check if there is a short circuit on the DC output side or if the load is damaged;
Check if the load current exceeds 2.5A and the total power exceeds 60W;
Confirm if the environmental temperature is too high or if the ventilation is poor.
Unstable output voltage, large fluctuations
Check if the AC input voltage fluctuates too much;
Check if there are frequent start-stop of large-power inductive loads on the DC output side;
Confirm if the system grounding is good, and if the controller and power module are shared ground.
IX. Core Differences from PS240/A
Rated current: PS242 is 2.5A; PS240/A is 5A
Maximum power: PS242 is 60W; PS240/A is 120W
Application scenarios: PS242 is suitable for small and medium-sized systems; PS240/A is suitable for medium and large-sized systems
Weight: PS242 is approximately 1800g; PS240/A is approximately 1950g