The front panel consists of an LCD screen and a multi-function button interface optimized for fast parameter adjustments. zk-5kx_voltage-converter.pdf - eleneasy.com
: The built-in LCD displays real-time data including input/output voltage, current, power, capacity (Ah), and operating time. Typical Use Cases Bench Power Supplies
| LED Pattern | Error | Manual’s Remedy | |-------------|-------|----------------| | 1 long, 1 short | Over-current | Check motor winding resistance, reduce load, verify supply | | 1 long, 2 short | Over-voltage | Reduce input voltage or use regenerative clamp | | 1 long, 3 short | Under-voltage | Increase supply voltage above minimum threshold | | 1 long, 4 short | Thermal shutdown | Improve ventilation, reduce current, check ambient temp | | Continuous fast blink | Control signal noise | Use shielded cable, add ferrite bead, check grounding |
The ZK-5KX is a fully programmable, digitally controlled buck-boost converter module, often branded under the WUZHI label and available through major retailers like AliExpress, Amazon, and Newegg. Its primary function is to take a DC input voltage and provide a regulated output voltage that can be either lower (buck) or higher (boost) than the input, within its specified limits. This "laboratory power supply" is a powerful and compact tool for the workbench. Zk-5kx Manual
Before diving into software configuration, the Zk-5kx Manual emphasizes a thorough hardware inspection.
Prevents battery voltage from flowing back into the module. You do not need to install an extra diode when charging batteries.
Statistical threshold (0–999.9Ah). Automatically turns off output when reached if enabled. Maximum Running Time The front panel consists of an LCD screen
The Zk-5kx is a workhorse driver that outperforms its price tag. Once you understand that the manual was written by engineers for engineers, you realize that every cryptic note actually matters.
Key takeaway from the Zk-5kx Manual: Always perform a "dry boot" (power on without the battery connected for 10 seconds) if the device fails to start on the first attempt.
Turns off the converter if the input voltage drops below a set threshold. OVP/OCP: Over-voltage and over-current protection. OPP: Over-power protection (typically capped at 82W). Its primary function is to take a DC
Shows input/output voltage (V), current (A), power (W), capacity (Ah), and running time (h). Terminals:
The user interface consists of a power input terminal block, an output terminal block, a rotary encoder with a push switch (labeled ), and a secondary button (labeled U/I ). The bright LCD display provides all operational feedback.
The module defaults to Constant Voltage (CV) mode, meaning it will try to maintain a constant output voltage. To adjust it:
Improper wiring can destroy the internal buck-boost controller. Follow these wiring steps strictly.