3
2
1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
App
Index
Output ON/OFF and Zero Source
(See section 5.12 for the procedure)
There are three output modes: OFF, ON, or zero source.
OFF:
The output is disconnected, and source action and measurement action
are stopped.
ON:
The output is connected, and the GS820 is running in normal mode.
Source action and measurement action are enabled.
Zero source: The output is connected, but the GS820 generates 0 V (during voltage
source (VS)) or 0 A (during current source (IS)). Source action and
measurement action are stopped.
Output ON
Output OFF
Generate zero
ON
ON
ON
OFF
OFF
OFF
OUTPUT
ZERO
ZERO
ZERO
ZERO
OUTPUT
ZERO
OUTPUT
ZERO
OUTPUT
OUTPUT
OUTPUT
The GS820 can also be controlled using OUTPUT IN and ZERO IN of the input terminal
for synchronous operation (SYNC IN) on the rear panel.
Output ON
Output OFF
Generate zero
ON
ON
ON
OFF
OFF
OFF
OUTPUT
ZERO
OUTPUT
ZERO
OUTPUT
ZERO
OUTPUT
OUTPUT
ZERO
ZERO
OUTPUT
ZERO
Zero Source Function
In addition to the generation of zero voltage or current, the zero source function of the
GS820 allows the voltage applied to the load or the current supply to be limited at an
extremely low level by setting the current or voltage limiter to the minimum setting (high
impedance setting for zero voltage or low impedance setting for zero current). Using this
function rather than turning the output OFF avoids the problems of output relay chattering
and contact life and also allows the operating time of turning the output ON and OFF to
be reduced.
DUT
Output relay:
Remains ON
DUT
Output relay:
Remains ON
Zero generation of voltage
• Low impedance: Current limiter is set to the
normal value
• High impedance: Current limiter setting is 10 nA
Zero generation of current
• Low impedance: Voltage limiter setting is 1 mV
• High impedance: Voltage limiter is set to the
normal value
2.3 Source
2-11
IM 765601-01E
Explanation of Functions
