LG Industrial Systems G3F-DA4I, Руководство пользователя

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Chapter 2. SPECIFICATIONS
2 - 13
2.7.1 Notes on Setting Offset/ Gain Value
1) Don't make D/A conversion processing on test mode.
D/A conversion processing on test mode allows D/A conversion of every channel to be stopped and
external device not to be controlled regularly.
If test mode is changed to normal mode, D/A conversion restarts with new offset/gain value.
2) Offset/ gain setting has to be set in the range of below.
a) Voltage output range of 10 V is applicable to -10
～
0
～
10 V
b) Voltage output range of 5 V is applicable to -5V
～
0
～
5 V
c) Voltage output range of 20 mA is applicable to 4
～
12 mA.
The setting exceeding the above range doesn't keep accuracy from being within the range of the
performance specification.
3) When offset/gain select switch is located on "Set" position, set value of offset/gain is stored.
When offset/gain select switch is located on "offset" or "gain" position, the end of test mode allows
offset/gain value to remain previous value.
4) Change the channel setting offset/ gain value after offset/gain select switch is located on "Set" position.
If channel change is made on offset/gain select switch of "offset" or "gain” position, and set offset/gain
select switch is set on "Set" position on the other channel, offset/gain value is stored on first channel
which would be changed.
REMARK
1) When gain value of channel 3 is changed from 10 to 5 Volts, and offset/gain select switch is
located on "gain" position, channel change to 4 allows gain value to be like next.
(1)Gain value of channel 3 : 5 Votls is output.
(2)Gain value of channel 4 : Previous value is output.
-When offset /gain select switch is set to "Set" position, gain value is stored as 5 Volts on
channel 3 and previous value remains on channel 4.
5) When the range exceeds possible offset/gain setting range, "RUN" LED flickers at high speed (interval
time: 0.1 sec). When LED display writes Err 4 and "RUN" LED display flickers at high speed, readjust
offset/gain within possible offset/gain setting range, offset/gain value is operated regularly and LED display
indicates test mode.