Mitsubishi Electric Q64RD User Manual page 78

4 SETUP AND PROCEDURES BEFORE OPERATION
4 - 10
(1) Offset/gain setting
START
Switch to the offset/gain setting
*1
mode.
Make sure that the RUN LED is
flickering
(offset/gain setting mode).
1)
Enter the offset value of the
channel to be adjusted.
Q64RD/Q64RD-G
Platinum RTD
0[ ]
Alternatively, enter the
value using a general
resistor.
Write the temperature set value
equivalent to the input value to the
buffer memory address (118 to 119,122
to 123, 126 to 127, 130 to 131) of the
channel to be adjusted.
Turn on the Offset Setting Request
(Y1, Y3, Y5, Y7) of the channel to
be adjusted.
Confirm that the Offset/Gain Setting
Status Signal (X1, X2, X3, X4) is
off.
Turn off the Offset Setting Request
(Y1, Y3, Y5, Y7).
Turn on the Offset/Gain Setting Status
Signal (X1, X2, X3, X4) and then make
sure that the "measured temperature
value" of the adjusted channel has been
corrected to be the "offset temperature
set value".
2)
Is the
ERROR/ERR. LED lit?
Enter the gain value of the channel
to be adjusted.
Platinum RTD
500[
Alternatively, enter the
value using a general
resistor.
Write the temperature set value
equivalent to the input value to the buffer
memory address (120 to 121,124 to 125,
128 to 129, 132 to 133) of the channel to
be adjusted.
Turn on the Gain Setting Request
(Y2, Y4, Y6, Y8) of the channel to
be adjusted.
Confirm that the Offset/Gain Setting
Status Signal (X1, X2, X3, X4) is off.
Turn off the Gain Setting Request
(Y2, Y4, Y6, Y8).
Turn on the Offset/Gain Setting Status
Signal (X1, X2, X3, X4) and then make
sure that the "measured temperature
value" of the adjusted channel has been
corrected to be the "gain temperature
set value".
Is the
ERROR/ERR. LED lit?
Do you adjust
another channel?
Turn on the User Range Write
Request (YA).
Make sure that the Offset/Gain Setting
Mode Status Flag (XA) is off.
YES
Turn off the User Range Write
1)
Request (YA).
Switch to the normal setting mode.
END
MELSEC-Q
Q64RD/Q64RD-G
]
*2
YES
1) or 2)
NO
YES
1)
NO
*1
4 - 10