6247G/6247C DC Voltage Current Source/Monitor Operation Manual
5.2.4 Source Function
5-26
1. Operation
1. Standby status
Pressing the
STBY
key sets Standby status.
The DUT is surely isolated.
2. HiZ Suspend status
Pressing the
SUSPEND (SHIFT+OPR)
key sets Suspend status. The OPR indicator blinks.
This is the status for the LoZ/HiZ switch OFF with the OPR/STBY relay ON.
Suspend status outputs Vsus voltage in VS status regardless of VS/IS output status.
As the output status is high resistance, it rarely affects the DUT.
The 6247G/6247C operates as follows in Operate status.
VS setting:
Vsus
VS output
IS setting:
Vsus
IS function
IS output
3. LoZ Suspend status
LoZ Suspend status is the same as HiZ Suspend status except that the output status is low resist-
ance.
This status is effective in setting the DUT to low impedance status when the output is OFF.
The output response speed is faster because the limiter range does not change in Operate status.
4. Current limiter in Suspend
Suspend status always sets VS status, and the current limiter setting changes to the values shown
in Figure 5-11, "Concept of Output Status."
Therefore, the HL or LL indicator might illuminate depending on the DUT status.
2. Setting Suspend conditions
1. Setting the suspend voltage
Set selecting
A) SOURCE
and then
2) Suspend V
in the menu.
The source range for the suspend voltage is the same as that for the voltage source function.
However, if the suspend voltage cannot be output in the currently setting source range, the range
switches to the output-enabled range in Operate status.
Some examples for the above explanation are shown below.
Source function
Suspend voltage
Source range
Suspend voltage
range
Source range switching
VS
0 V
5 V
5 V
No
10 V
5 V
50 V
Yes
10 V
50 V
50 V
No
IS
0 V
3
A
5 V
Yes
10 V
300 mA
50 V
Yes
