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3.6.5 Power Supply OK Signal
Power Supply OK signal (\PS_OK_OUT) indicates power supply output state (ON/OFF).
It is an open collector signal at J1-3, referenced to COM_SELV at J1-11 (Isolated Interface
Common). When a fault condition occurs or power supply output is Off, \PS_OK_OUT level is high,
maximum input voltage is 30V. When no fault condition occurs or power supply output is On,
\PS_OK_OUT level is low with maximum sink current of 10mA.
The \PS_OK_OUT signal can be delayed via Front Panel setting or via communication. The delay
affects \PS_OK_OUT signal OFF -> ON transition only, ON -> OFF is not affected.
This function is used to prevent signal rise before output reaches set value.
PS_OK delay setting:
1. Press SYST Button, SYST (GREEN) LED illuminates. Rotate Voltage encoder until PSO.DL
Appears.
2. Rotate the Current encoder to set the required delay time. Press on the current encoder to
select the desired delay value.
3. The display will blink once to acknowledge the setting.
4. Exit SYST menu by pressing the Back button or the SYST button.
3.6.6 CV/CC Signal
CV/CC_MON signal indicates the power supply operation mode (Constant Voltage / Constant
Current /Constant Power).
CV/CC_MON signal is an open collector output, maximum voltage of 30V, at J1-4, referenced to
COM_SELV at J1-11 (Isolated Interface Common). When the power supply operates in the
Constant Voltage mode, the Constant power mode or OUTPUT OFF, CV/CC_MON signal is high.
When the power supply operates in the Constant Current mode, CV/CC_MON signal output is low
(0-0.6V), with maximum 10mA sink current.
CAUTION
Do not connect CV/CC signal to a voltage source higher than 30VDC. Always connect CV/CC
signal to the voltage source with a series resistor to limit the sink current to less than 10mA.
NOTE
For all rear panel functions and for navigation of all menus refer to the Rear Panel menus in
section 2.4 & section 2.7.
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