ITech IT7900P Series User Manual page 128

Power Amplification
Analog signals can be input through the analog input interface and power
amplification function can be realized. The operation method is as follows:
Connecting the analog interface, different interface function are different, please
refer to pins description as above.
Voltage and current monitoring
Through the analog interface, the existing output voltage/current can be
monitored. Connect a digital voltmeter or oscilloscope between pin 54
(V_Monitor), pin 6 (I_Monitor) and ground wire 4 (GND) of the analog interface.
The -10V ~ 10V voltage reading corresponds to the power voltage and current
output between negative full range and positive full scale (For AC, 0 to 10V
corresponds to 0 to full scale). The wiring diagram is shown in the figure below.
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System-Related Functions
126