Features
1. Adopts an integrated design, combining power supply, data acquisition, control, drive, and communication functions.
2. Supports switching control for four AC power channels and two DC power channels.
3. Provides interfaces for temperature and pressure sensors, as well as for sensors outputting analog current and voltage signals.
4. Features a built-in emergency stop input and safety relay control circuit, supporting safety functions such as emergency shutdown, access control interlocking, and over-temperature protection.
5. Includes lighting, status indication, and alarm functions.
6. Integrates multiple standard communication interfaces—including CAN, USB, RS-485, and RS-232—for communication and programmable control.
Introduction
This product is designed specifically for industrial control board applications. It comprehensively covers critical control functions—including power management, motion control, extrusion systems, regulation of environmental parameters (such as temperature and pressure), and safety interlocks—making it suitable for real-time control requirements across a wide range of complex operating conditions.
It is applicable to various industrial, medical, and consumer devices, such as temperature control systems, motor drives, packaging and processing machinery, environmental monitoring equipment, medical temperature control units, 3D printers, smart home appliances, smart lighting, and smart aquariums.
API Documentation

Power Input Interface
| No. | Definition | Description |
| 1 | +24V | Positive power, input voltage range 24V±5% |
| 2 | GND | GND Power ground |
Power Output Interface
| No. | Definition | Description |
| 1 | +12V | 12V power output |
| 2 | GND | Power ground |
| 3 | GND | Power ground |
| 4 | +5V | 5V power output |
AC Power Switch Interface
| No. | Definition | Description |
| 1、2 | HTR_N+、HTR_N- | External AC 220V, N+ input, relay-protected N- output, controllable 220V switch |
| 3、4 | HTR_L-、HTR_L+ | External AC 220V, L+ input, relay-protected L- output, controllable 220V switch |
| 5、7 | OUT2+、OUT2- | External AC 220V, relay-protected output, controllable switch |
| 6、8 | OUT1+、OUT1- | External AC 220V, relay-protected output, controllable switch |
DC Power Switch Interface
| No. | Definition | Description |
| 1、2 | OUT-5、OUT+5 | External power supply, controllable switch |
| 3、4 | OUT-6、OUT+6 | External power supply, controllable switch |
External Power Interface
| No. | Definition | Description |
| 1 | LIGHT+ | On-board 12V power output |
| 2 | LIGHT- | Light control signal |
| 3 | A24_3 | On-board 24V power output |
| 4 | A24_4 | PWM speed/light dimming signal |
| 5、6 | OUT-4、OUT-3 | Controllable 24V output |
| 7 | P24V1_IF1 | External 24V power input |
Temperature Sensor Input Interface
| No. | Definition | Description |
| 1 | AGND | Analog ground (sensor loop ground) |
| 2 | S+ | Positive input of temperature sensor |
| 3 | S- | Negative input of temperature sensor |
Sensor Analog Input Interface 1
| No. | Definition | Description |
| 1 | A15V | 15V power output (for sensor power supply) |
| 2、3 | AGND | Analog ground (signal loop ground) |
| 4 | Sin | Sensor voltage input signal, voltage range 0V-10V |
Sensor Analog Input Interface 2
| No. | Definition | Description |
| 1 | A15V | 15V power output (for sensor power supply) |
| 2、3 | AGND | Analog ground (signal loop ground) |
| 4 | Sin | Sensor current input signal, current range 4mA-20mA |
Key Detection Interface
| No. | Definition | Description |
| 1 | IN-4 | Sensor detection interface |
| 2 | IN+4 | Sensor detection interface |
| 3 | LIGHT_B- | Light key signal |
| 4 | POW_B- | Power key signal |
Three-Color Alarm Lamp Interface
| No. | Definition | Description |
| 1 | 24V | 24V power output |
| 2 | ALM_G | Green alarm lamp control signal |
| 3 | ALM_Y | Yellow alarm lamp control signal |
| 4 | ALM_R | Red alarm lamp control signal |
Door Switch Detection Interface
| No. | Definition | Description |
| 1 | +24V | 24V power output |
| 2 | SW | Door switch signal input (detect door status) |
Emergency Stop Switch Interface
| No. | Definition | Description |
| 1 | SB3_12 | Door Emergency stop 1, controlled by external safety relay |
| 2 | SB3_11 | Door Emergency stop 1 |
| 3 | SB3_2 | Door Emergency stop 2, controlled by external safety relay |
| 4 | SB3_1 | Door Emergency stop 2 |
External Device Interface
| No. | Definition | Description |
| 1 | PUMP_FB | Feedback signal |
| 2 | PUMP_ST_SP | Control signal |
| 3 | PUMP_PWM | Pulse signal |
| 4 | GND | Power ground |
| 5 | PUMP_GND | Peripheral power ground |
| 6 | VCC_24V | 24V power output |
Safety Relay Control Interface
| No. | Definition | Description |
| 1、2、3、4、8、9 | PLZ-A1、PLZ-42、PLZ-13、PLZ-23、PLZ-A2、PLZ-34 | External safety relay |
| 5、6 | PLZ-S11、PLZ-S21 | Connect to external emergency stop switch |
| 10、11 | PLZ-14、PLZ-24 | Peripheral power switch signal protected and controlled by safety relay |
| 12、13 | PLZ-S12 PLZ-S22 | Door switch detection signal protected and controlled by safety relay |
| 14 | PLZ-33 | MCU detects the presence of safety relay |
USB3.0 Interface
| No. | Definition | Description |
| 1 | USB1 | USB communication, Type‑C socket |
Serial Port Interface
| No. | Definition | Description |
| 1 | J1 | RS-232, DB-9 male socket |
RS-485 & CAN Communication Interface
| No. | Definition | Description |
| 1 | 485_B | RS-485 bus receiver inverting input / driver inverting output, input voltage range: -15V to 15V |
| 2 | 485_A | RS-485 bus receiver non-inverting input / driver non-inverting output, input voltage range: -15V to 15V |
| 3 | CANL | CAN bus low-level line |
| 4 | CANH | CAN bus high-level line |
Product Dimension Drawing

ABOUT US
Founded in 2001, KFLY Electronic Tech. (Shanghai) Co., Ltd. is a foreign-invested high-tech enterprise and a Specialized, Refined, Differential and Innovative enterprise. We specialize in the R&D, production and sales of power electronic products, focusing on industrial special power supplies, intelligent control and special lighting sectors, and provide reliable hardware, software products and customized solutions for global customers.
The company’s three core product categories are LED explosion-proof power supplies, intelligent industrial control boards and special lighting products. Widely applied in explosion-proof industrial scenarios, cold chain equipment, water purification and disinfection, industrial automation, laboratory equipment and many other industries, we can offer customized product development services according to customer requirements.
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