6240B DC Voltage Current Source/Monitor Operation Manual
5.2.5 Source Function
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5.2.5.5
Suspend Function
The 6240B can select from three output statuses; Standby (output relay OFF), Suspend HiZ (output relay
ON and high resistance), and Suspend LoZ (output relay ON and low resistance).
Using this function can reduce unnecessary relay ON/OFF actions, which reduces deterioration of the
throughput due to relay operation time and improves the life spans of the relays.
Therefore, using the suspend function is recommended whenever turning OFF the output to change the
source conditions.
Figure 5-11 below shows a conceptual diagram of output status.
Figure 5-11 Conceptual Diagram of Output Status
6240B
OPR/STBY
LoZ/HiZ
Semicond
uctor relay
image
Vsus
DUT
Vsus:
Output voltage in Suspend status
LoZ/HiZ:
Output resistance switching in Suspend status
OPR/STBY: Operate/Standby switching relay
Output OFF status
Output relay
Output status
Setting current limit value
LoZ
ON
Vsus, low resistance
Vs:
Set current-limiter (I
L
)
Is:
30 digits from the current setting range
HiZ
ON
Vsus, high resistance
300 nA
STBY
OFF
Open
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