Offset/Gain Setting - Mitsubishi MELSEC-Q Series User Manual

4
SETUP AND PROCEDURES BEFORE OPERATION
4.6

Offset/Gain Setting

Execute offset/gain settings in the following procedure.
When the factory shipped setting is used, offset/gain setting is not necessary.
If the utility package is installed, execute the offset/gain setting according to the procedure
in Section 5.6.2.
(1) Setting procedure
Check the disconnection
state monitor flag (Un\G49),
and identify the channel for
the disconnection. Then
review the wiring of the
channel and turn YF from
ON to OFF.
4
- 9 4.6 Offset/Gain Setting
START
With the intelligent function module swich setting,
set the input type setting value to a type for executing
error compensation. In the cold junction temperature
compensation setting, set it to "with cold junction
temperature compensation". *1
2)
Switch to the offset/gain setting mode. *2
Check that "RUN" LED is flashing to indicate the
offset/gain setting mode.
1)
Set the conversion enable/disable setting (Un\G0)
of the channel for executing the offset/gain setting
to "enable" and turnY9 from ON to OFF. *3
YES Is the disconnection state
monitor signal (XC) ON?
NO
Enter the value, to be used as a offset value in the
termocouple or standard DC voltage generator, to
channel for adjusting.
Set the offset setting channel in the offset/gain
setting mode (Offset specification)(Un\G26). Set the
offset/gain setting mode (Gain specification)
(Un\G27) to "0".
Write the temperature setting value (digital)
equivalent to the analog input value to the CH offset
temperature setting value (Un\G28)*4 of the channel
to be adjusted.
Turn ON the channel change request (YB).
Confirm that the channel change completion flag
(XB) is turned ON.
Turn OFF the channel change request (YB).
Enter the value, to be used as gain value in the
termocouple or standard DC voltage generator, to
channel for adjusting.
Set the gain setting channel in the offset/gain setting
mode (Gain specification)(Un\G27). Set the offset/gain
setting mode (Offset specification)(Un\G26) to "0".
Write the temperature setting value (digital)
equivalent to the analog input value to the CH gain
temperature setting value (Un\G29)*4 of the channel
to be adjusted.
Turn ON the channel change request (YB).
Confirm that the channel change completion flag
(XB) is turned ON.
Turn OFF the channel change request (YB).
Do you want to adjust other channels?
NO
Turn ON the user range write request (YA).
Confirm that the offset/gain setting mode status flag
(XA) is turned OFF.
Turn OFF the user range write request (YA).
Is the "ERR." LED on?
NO
Switch to normal mode.
FINISH
YES
1)
YES
2)