Filter
Top Products
Remote Operation 71
Example 2: VSET 1,20
Now output 1 is in the high range programmed to 20 V and 2A.
Example 3: VSET 1,5; ISET 1,3
Output 1 is now in the low range programmed to 5 V and 3A.
Example 4: VSET 1,10
Now output 1 is in the high range and the current is automatically scaled back from 3 A to the lower current limit of
2.06 A. The output is operating in the same range as that of Example 2.
Example 5: VSET 1,20; ISET 1,3
The ISET command will cause the voltage to be scaled back to the low range limit of 7.07 V and the output will operate
within the boundaries of the low range as in Example 3.
NOTE When the range is automatically switched, as in examples 4 and 5, the "coupled parameter'' bit (CP) in
the status register (see Table 5-5) is set to indicate that range switching occurred.
Output On/Off
The OUT command disables/enables an output channel of the power supply. It will not disturb any other programmed
function nor will it reset the protection circuits. You can control individual outputs with the OUT command as shown
below. For example, to disable output channel 1 send the following:
OUT 1,0
To enable output channel 1 send the following command
OUT 1,1
You can find out the present state of output 1 by sending the query:
OUT? 1
and addressing the supply to talk. The response from the supply is either a "0" to indicate output 1 is off or a "1'' to
indicate that the output is on. When disabled, the output behaves as if it were programmed to zero volts and minimum
current.
Overvoltage (OV) Protection
The programmable OV is a protection feature which can be set by the operator to protect the load against excessive
voltage. When the actual voltage exceeds the programmed overvoltage setting for a given output channel, the OV is
tripped. The OV circuit will fire the SCR crowbar which shorts across the output and the output assumes a low
impedance state.
For example, to program the OV of output channel 1 to 9.5 V send the following command:
OVSET 1,9.5
To find out the OV setting for output channel 1 send the following query and address the supply to talk:
OVSET? 1