Input Range Setting - Mitsubishi Electric MELSEC-Q series User Manual

4.2

Input Range Setting

An input range can be selected for each channel depending on the CT to be connected.
Select a factory default range normally. If the slope of I/O conversion characteristics is changed, select a user range
and configure the offset/gain setting.
● Select an input range depending on the CT to be connected. In case of excessive input, safety problems such as heat
generation may occur.
● If a set input value is not supported by the CT to be connected, and Operating condition setting request (Y9) is turned on
then off, an input signal error may occur.
If an input signal error occurs, check if the input range setting is supported by the connected CT. If the input range setting
is incorrect, reset the setting.
For details on the input signal error detection function, refer to the following.
• Input Signal Error Detection Function (
(1) Setting procedure
1.
Set values to CH Input range setting (Un\G150 to Un\G157) depending on the CT to be
connected.
Factory default range
User range
2.
Turn on then off Operating condition setting request (Y9).
(2) When using a user range
• Set 0010
connected.
• Configure the offset/gain setting. For the offset/gain setting, refer to
• One offset value and one gain value are saved in the CT input value as the user range setting for each
channel. When connecting a new CT to a channel where a user range was set with a different CT before,
configure the offset/gain setting again.
34
Input range
0 to 5AAC
0 to 50AAC
0 to 100AAC
0 to 200AAC
0 to 400AAC
0 to 600AAC
0 to 5AAC
0 to 50AAC
0 to 100AAC
0 to 200AAC
0 to 400AAC
0 to 600AAC
to 0015 to CH Input range setting (Un\G150 to Un\G157) depending on the CT to be
H H
Page 42, Section 4.6)
Setting value
0000
H
0001
H
0002
H
0003
H
0004
H
0005
H
0010
H
0011
H
0012
H
0013
H
0014
H
0015
H
Page 148, Section 8.5.