Zk-pp2k Manual (Proven)

This usually happens when driving an inductive load (like a large motor) without a flyback diode, causing back-EMF to interference with the chip.

Set to 0.010 (10ms High Level Signal). Negative Pulse Width: Set to 0.010 (10ms Low Level Signal).

Understanding the hardware limits ensures safe and accurate operation. DC 3.3V to 30V Frequency Range: 1Hz to 150kHz Frequency Accuracy: ~2% accuracy across all ranges Duty Cycle Range: 0% to 100% Output Current: Driving capacity around 30mA Pulse Count Range: 1 to 9999, or infinite Delay Time Range: 0.000s to 9999s 🕹️ Device Layout and Interface

The ZK-PP2K features two distinct modes. To switch between them, . PWM Mode (Standard) Identification: The screen displays a "%" symbol. Zk-pp2k Manual

| Problem | Likely Cause | Solution (Zk-pp2k Manual Fix) | | :--- | :--- | :--- | | | Input voltage too low (<6V) or polarity reversed. | Check DC source. Use a multimeter on IN+ and IN-. | | Output voltage flickers | Input voltage is too close to output voltage. | Buck converters need 1.5V headroom. Input must be > Output + 1.5V. | | Module gets scorching hot | Current > 5A without a fan. | Reduce load or mount a 12V cooling fan onto the heat sink. | | Can't set current limit | Load is not drawing enough current. | Short the output wires briefly (dangerous) OR use a 0.1 Ohm resistor. The module needs a load to sense current. | | Battery charges too slowly | Wire resistance is too high. | Use thicker AWG wires for output. The ZK-PP2K is limiting due to voltage drop in the wires. | | "Err" on display | Over-temperature or Short circuit. | Check load for shorts. Let the device cool down. |

: A 2-pin JST-XH connector that accepts an external dry contact button to duplicate the on-board ON/STOP function.

Use the FREQ+ / FREQ- and DUTY+ / DUTY- buttons to adjust values. This usually happens when driving an inductive load

The ZK-PP2K is a digitally controlled . This means the output voltage must always be lower than the input voltage. It features a rotary encoder for navigation and a 0.96-inch OLED display.

Adjust the frequency (Hz) to match your application (e.g., 20kHz for motor control to avoid audible whine).

Once enrolled, using the Zk-pp2k is simple: Understanding the hardware limits ensures safe and accurate

Adjust DUTY+ / DUTY- until it reads 060% . Execution: Tap ON to rotate the motor.

The ZK-PP2K's versatility comes from its two distinct operating modes. One should select the mode based on the task's requirements.

A very specific topic!

Time elapsed before the first pulse fires. Pulse Count: Total number of cycles executed per trigger. 🚀 Step-by-Step Programming Guide Follow these steps to configure your ZK-PP2K. Setting Up PWM Mode Connect power (3.3V–30V) to VIN+ and VIN- .