6241A/6242 DC Voltage Current Source/Monitor Operation Manual
5.2.4 Source Function
5-26
1. Operation
1. Standby status
Press STBY to set Standby status.
Securely isolates the DUT.
2. HiZ Suspended status
Press SUSPEND (SHIFT, OPR) to set Suspended status. OPR indicator blinks. This is the sta-
tus for LoZ/HiZ switch OFF with OPR/STBY relay ON.
Suspend status outputs Vsus voltage in Vs status regardless of Vs/Is output status.
Since the output is the high resistance status, it rarely affects the DUT.
Operation is as follows during Operate ON.
Vs setting: Vsus → Vs output
Is setting: Vsus → Is function → Is output
3. LoZ Suspended Status
Same status as HiZ Suspend except the output is in low resistance status.
Effective to set the DUT in low impedance when the output is OFF.
The output response-speed is faster because limiter range does not change in Operate ON.
4. Current-limiter in Suspend
Suspend always sets Vs status, and the current-limiter setting changes to the values shown in
Figure 5-11, “Concept of Output Status.”
Therefore, HL or LL indicator might illuminate depending on the load status.
2. Setting Suspend Conditions
1. Sets suspend voltage
Select and set “A) SOURCE” → “2) Suspend V” on the Menu screen.
The voltage range of Suspend voltage is the same as that for the voltage source function.
However, if the Suspend voltage is a value that cannot be set in the source-voltage range, then
the new range is set, and the range change occurs even in Operation.
Some examples for the above explanation are shown below.
(Values separated by a slash (/) are values for 6241A/6242, respectively.)
Source function Sets suspend voltage Source range
Suspend
voltage range
Changing source range
Vs 0 V 300 mV 300 mV No
10 V/5 V 3 V 30 V/6 V Yes
10 V/5 V 30 V/6 V 30 V/6 V No
Is 0 V 3 mA 300 mV Yes
10 V/5 V 500 mA 30 V/6 V Yes
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