ZK-PP2K signal generator is a device that provides electrical signals at a variety of frequencies, square waves, pulse, and output levels. It supports dual-mode: PWM mode and PULSE mode. It supports high current output and can be directly connected to the motor. It is used as a signal source or excitation source for testing. Widely used in production practice and technology.

2. Features:
1>.Dual-mode: PWM mode and PULSE mode
2>.LCD high definition display
3>. Support frequency adjustment
4>. Support duty cycle adjustment
5>. High precision detection
6>. Support power-down memory function
7>.1-Channel signal output
8>. Support reverse protection
9>. Support enabled/disabled output
10>. Direct drive LED/Motor/solenoid valve

3.Parameters:
1>.Product name: ZK-PP2K PWM Signal Generator
2>.Model: ZK-PP2K
3>.Work voltage:DC 3.3V-30V
4>.Frequency range:1Hz~150KHz
5>.Frequency accuracy:2%
6>.Duty cycle range:0.00%-100%
7>.Output Current:8A(Max)
8>.Number of pulses:1~9999 or Infinite
9>.Delay time:0.000s~9999s
10>.Pulse width:0.000s~9999s
11>.Time accuracy:1ms
12>.Output amplitude:Same to input voltage
13>.Work Temperature:-20℃~85℃
14>.Work Humidity:0%~95%RH
15>.Size:79*43*26mm

4. Work Mode:
1>.PWM Mode: Frequency, Duty cycle
1.1>. It is PWM mode when displaying ‘%’.
1.2>. The factory default mode is PWM mode.
1.3>. Button FREQ+ and FREQ- are used to set output frequency. Users can short press by set value in the minimum unit or keep press to the continuous setting. The frequency range is 1Hz to 150KHz.
1.4>. Button DUTY+ and DUTY- are used to set the output duty cycle for frequency. Users can short press by set value in the minimum unit or keep press to the continuous setting. The duty cycle range is 0.00% to 100%.
1.5>.Short press button ‘ON’ to enabled or disable the output. It is enabled output when displaying the symbol ‘OUT’ on left. It is disabled output if no display symbol ‘OUT’ and module will output 0V.
1.6>. The default factory frequency is 1KHz and the duty cycle is 50%.
1.7>. Switch work mode: Keep pressing the button ‘SET’ for about 6 seconds. Then it is entered into PULSE mode if the symbol ‘%’ disappears on right.
2>.PULSE Mode: Pulse width, Delay, Pulse number
2.1>. It is PWM mode without the display symbol ‘%’.
2.2>. Button P+ and P- are used to set time for positive pulse width. Displayed on the first line.Set time range is 0.000s~9999s.
2.3>. Button N+ and N- are used to set time for negative pulse width time. Displayed on the second line.Set time range is 0.000s~9999s.
2.4>.Short press button ‘ON’ to enabled or disable the output. It is enabled output when displaying the symbol ‘OUT’ on left. It is disabled output if no display symbol ‘OUT’ and module will output 0V.
2.5>. The default factory positive pulse width is 0.5 seconds, and the negative pulse width is 0.5 seconds.
2.6>. Long press button ‘SET’ for 2 seconds to enter into set the number of pulses and delay time. The screen will display the symbol ‘SET’ in the lower left corner. Note: Once in this mode, the output will be disabled and the output pulse will be cleared.
2.7>. Button P+ and P- are used to set delay time.Set time range is 0.000s~9999s.
2.8>. Button N+ and N- are used to set the number of pulses. Set range is 1~9999 or Infinite.
2.9>. The factory default delay time is 0 seconds, and the number of pulses is infinite (display ‘—-’).
2.10>. Automatic return to pulse interface by pressing button ‘SET’ for 2 seconds.
2.11>. Short press button ‘ON’ after set delay time and then start output the set number of pulses.
2.12>. It will automatically output 0V if the number of pulses is sent. The output will be disabled and clear pulse numbers if press the button ‘ON’ during output.
2.13>. The number of set pulses is output each time when module power on and then stop output or press button ‘ON’ to restart.

5.Practical application:
1>.PWM output 20KHz,60% : Select PWM mode.Set frequency to 20.00 and duty cycle to 060%.
2>.Output turn ON 0.6s,OFF 0.2s,infinite loop : Select PULSE mode.Set positive pulse width to 0.600 and negative pulse width to 0.200.Delay time to 0.000.Number of pulses to ‘—-’.
3>.Delay 5s after power ON or press the ‘ON’ button. Then output turns ON 0.6s, OFF 0.2s, infinite loop: Select PULSE mode. Set positive pulse width to 0.600 and negative pulse width to 0.200.Delay time to 5.000.A number of pulses to ‘—-’.
4>.Delay 5s after power ON or press the ‘ON’ button. Then output 10ms high-level signal,10ms low-level signal, cycle 100 times: Select PULSE mode. Set positive pulse width to 0.010 and negative pulse width to 0.010.Delay time to 5.000.A number of pulses to 0100.
5>.Delay 5s after power ON. Then keep output: Select PULSE mode. Set positive pulse width more than 0(any value) and negative pulse width to 0.000.Delay time to 10.00.A number of pulses to ‘—-’.

6. Use steps:
1>. Connect to the power supply.
2>. Select work mode as the following manual.
3>. Short or long-press button ‘FREQ+’ or ‘FREQ-’ to set parameter.
4>. Short or long-press button ‘DUTY+’ or ‘DUTY-’ to set parameter.
5>. Connect to load.

7. Application:
1>. Square wave signal generator, generating square wave signal for experimental development
2>. Used to generate a square wave signal that controls the motor driver
3>. Generate adjustable pulses for use by the MCU
4>.Dimmer
5>.Speed governor

8. Note:
1>. It’s 1-channel signal output signals.
2>. Its maximum output current is 8A. Therefore it can directly drive high-power devices such motor.
3>. Please read the user manual and description before use.

9. Package:
1>.1pcs ZK-PP2K PWM Signal Generator