Gap control to prevent the upper and lower devices from being turned on at the same time

If the phase U and X devices in the above figure are turned on at the same time, they short-circuit, causing danger. Using the DG-8000 gap time control function automatically generates the specified dead time as shown in the figure. Even if the frequency or cycle changes, the dead time remains constant. The gap time can be changed even during oscillation. It is also possible to make devices turn on at the same time by specifying a negative value.

Independent control of the time axis and vertical axis

Changing the frequency	Changing the output level
The parameters related to the time axis and those related to the vertical axis are separately controlled. These parameters can be changed manually or by using remote commands.

Support of ORed output on channel 1

Easy generation of PWM signal

The inverter and PPG option enables you to output control signals for the buck chopper, single-phase unipolar, single-phase bipolar, and two three-phase levels. The modulation frequency and modulation degree can be changed even during oscillation. This is convenient for testing inverters because it is possible to obtain output to which pulse width modulation created from the inner sine wave and triangle wave is applied.
	< Configuration example > DG-8000 main unit: 1 DG-801 inverter and PPG option: 1
Note 1: The modulation wave is shown only for this explanation. This wave is not output in a real environment.
When using the PPG function, this generator functions as a signal generator of complicated logic for six channels using predetermined pulse patterns. Waveform patterns can be created using the waveform creation application (which is available free of charge).

Variable control of the PWM signal frequency

The operation pattern option is convenient for continuous operation testing because it enables variable control of the frequency and modulation degree (in the inverter mode only). The patterns for such control are controlled using predetermined arbitrary waveforms. These waveforms can be created using the waveform creation application (which is available free of charge).
	The figure on the left shows an example when a trapezoid wave is used to apply frequency modulation. < Configuration example > DG-8000 main unit: 1 DG-801 inverter and PPG option: 1 DG-802 operation pattern option: 1
Note 1: The modulation wave is shown only for this explanation. This wave is not output in a real environment.
In the inverter mode, faulty patterns during the gap time can be inserted at regular intervals by using the error insertion function.

Application example: continuous operation test of a solenoid and other elements that control an electromagnetic valve

Parallel operation of three generators to support output from 18 channels

The quick synchronization option quickly enables up to three generators to synchronously operate by connecting multiple BNC cables to the rear panel. If one of the generators goes down, the remaining two generators also stop as a fail safe when this function is used.	< Configuration example > DG-8000 main unit: 3 DG-602 quick synchronization option: 3