External Simulation Test Function; Remote Measurement Function - ITech IT7622 User Manual

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3.16 External Simulation Test Function

3.17 Remote Measurement Function

power supply will be triggered once.

Software: if the trigger command is received by the power supply from the
communication interface in the valid software trigger mode, the power
supply will be triggered once.

Bus: if the bus trigger command is received by the power supply in the valid
bus trigger mode, the power supply will be triggered once.

External: if one trigger signal is connected to the pin 9 of the Analog
Interface terminal on the rear panel, the power supply will be triggered
once.
The rear panel of the power supply is equipped with a DB-9 simulation interface
used for controlling the on-load voltage. The adjustable voltage can be
connected to the simulation interface to simulate the output from 0 to the full
range, thus adjusting the output voltage.
Press [Shift]+[Setup] (Menu) to enter the [System Setup] interface. Select
Ext-Ctrl and set it in the ON state. Exit the menu. Then
LCD screen. Press [M1] on the front panel to exit the external simulation
function.
DB-9 terminal is defined as follows.
If the tested instrument consumes large current, a large voltage drop will be
detected in connection line between tested instrument and power supply
terminal. To ensure measurement accuracy, a remote sense measurement
terminal is provided at power supply rear panel to compensate voltage drop lost
in wire.
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Pin Name
Pin 1 V-MON
Pin 2 Vexter
Pin 3 ONOFF_STATE
Pin 4 FAIL
Pin 5 GND
Pin 6 I-MON
Pin 7 GND3
Pin 8 ON/OFF
Pin 9 EXT TRIG
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Basic Operations
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Instruction
Voltage output signal.
External reference input.
ON/OFF state output.
System FAIL state signal
output.
Digital grounding.
Current output signal.
External simulation
grounding.
ON/OFF control signal
input.
External trigger control
signal input.
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