PSM-SERIES PROGRAMMABLE POWER SUPPLY 
USER MANUAL 
 
  
 
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Firstly, remove the external test unit, such as battery, from the 
instrument, adjust the voltage down or raise up the OVP level, 
then clear the OVP.   
z  Programming Over Current Protection, OCP 
Set OCP level and the protection circuit of the OCP status. 
1)  Input the value of the Over Voltage protection limit value and set 
the OCP status.   
2)  Confirm the function of OCP (Over Current Protection): 
Adjust the output current up near to OCP level to confirm the 
OCP function, when the OCP circuit is triggered, the OCP loop 
will drop the output current near to zero, now, the OCP indicator 
will be blinking. 
3) Clear the OCP function: 
Firstly, remove the external test unit, such as battery, from the 
instrument, adjust the output current down or raise up the OCP 
level, then clear the OCP. 
z  Storing and Recalling Operating: 
1)  The storing setting function including the store of the Output 
range, Output voltage value, Output current value, Over Voltage 
protection level, Over Current protection level, Over Voltage 
protection status, Over Current protection status and the Delay 
time. 
PSM-SERIES PROGRAMMABLE POWER SUPPLY 
USER MANUAL 
 
  
 
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2)  Store the present setting status to the memory bank: 
Press [SHIFT][STORE], set the panel operation to Storing setting 
selection, input the memory address by using number key (When 
want to correct the input value due to error key-in, can use wheel 
knob to clear the error value and re-input the value), then press 
[ENTER] to complete the change of store, and the panel will 
display “DONE” message. 
3)  Recall the setting status from the memory bank: 
Press [SHIFT][RECALL], set the panel operation to Recall 
setting, use the number key to recall the desired memory address 
(When want to correct the input value due to error key-in, can 
use wheel knob to clear the error value and re-input the value), 
then press [ENTER] to complete the change, and the panel will 
display “DONE” message. 
z  Auto Running Operation 
The function must be used together with the DELAY setting which 
is defined as the operation delay time of next running operation. The 
Delay function is workable only under Auto Running operation. 
1)  Delay time setting: 
Press [DELAY] to set the panel operation to Delay time setting 
selection.