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MELSEC-A
4 SETUP AND PREPARATION BEFORE OPERATION
4.5 Offset/Gain Setting
When changing the I/O conversion characteristics, follow the procedure below.
Power OFF
Adjust other channels?
Correct the gain value to a
normal value.
Does the "RUN" LED flicker
at intervals of 0.5s?
Move the SELECT/SET switch to "SET". Release
your hand after making sure that the "RUN" LED has
turned on .
Using the "UP/DOWN switch", set to the voltage
which will be the gain value.
Change the lit offset/gain adjusting LEDs with the
SELECT/SET switch, and make sure that the LED of
the channel whose offset/gain will be set and the
"GAIN" LED are lit.
Correct the offset value to a
normal value.
Does the "RUN" LED flicker
at intervals of 0.5s?
Move the SELECT/SET switch to "SET". Release
your hand after making sure that the "RUN" LED has
turned on .
Every time the SELECT/SET switch is moved to
"SELECT", the offset/gain adjusting LEDs lit change
as shown below.
Make sure that the "RUN" LED is off.
Power ON
Set the mode select switch as indicated below.
Ver. 1 remote device station: "1" or "2"
Ver. 2 remote device station: "4" or "5"
RUN
SELECT
On
SET
START
1 2 4 8 OFFSETGAIN
A
CH1 offset value setting
CH1 gain value setting
CH2 offset value setting
CH2 gain value setting
CH3 offset value setting
CH3 gain value setting
CH4 offset value setting
CH4 gain value setting
CH5 offset value setting
CH5 gain value setting
CH6 offset value setting
CH6 gain value setting
CH7 offset value setting
CH7 gain value setting
CH8 offset value setting
CH8 gain value setting
On
Off
B
YES
NO
B
RUN
SELECT
On
SET
YES
NO
C
NO
A
END
C
Using the "UP/DOWN switch", set to the voltage
which will be the offset value.
If the "RUN" LED is not lit, E PRON may have failed. For details, refer to Section 3.5.2.
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