Using the External Shutdown Function
Defining the Polarity of the External Shutdown Signal
1.Turn the
PrO OUP is displayed on the output voltage display.
2.Turn the rotary Adjust/Enter control until PrO SD is displayed.
3.Press the rotary Adjust/Enter control to display SD 0 (shutdown on logic 0) or SD1 (shutdown on logic 1).
4.Press the rotary Adjust/Enter control to commit the desired polarity setting.
For example: If you set the shutdown logic to 1 (SD1) and apply a
logic high (greater than 1.2 Vdc) to pin J3.12 relative to pin J3.6 on
the ISOL connector, the power supply will shut down. Conversely, if 3 you set the shutdown logic to 0 (SD0), the power supply will only
operate when you have a logic high (greater than 1.2 Vdc) to pin J3.2 relative to pin J3.6.
Important: There is an internal pullup resistor inside the shutdown circuit so the shutdown polarity should be set to 0 if it is not being used.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:POLarity
