Mitsubishi Electric MELSEC iQ-R Series User Manual page 68

■Procedure for executing the sensor correction (two-point correction) (when using a program)
Configure the setting by the following procedure:
1.
Shift the mode to the setting mode. (Turn from ON to OFF 'Setting/operation mode command' (Y1).) ( Page 164
Setting/operation mode command)
2.
Set 'CH1 Stop mode setting' (Un\G503) to Monitor (1). ( Page 260 CH1 Stop mode setting)
3.
Set 'CH1 Sensor correction function selection' (Un\G564) to Sensor two-point correction (1). ( Page 311 CH1 Sensor
correction function selection)
4.
Input the correction offset value.
Enter the value using devices such as a thermocouple, platinum resistance thermometer, and standard DC voltage generator,
or based on a general resistance value.
5.
Set the temperature process value (PV) corresponding to the input for 'CH1 Sensor two-point correction offset value
(corrected value)' (Un\G569). ( Page 314 CH1 Sensor two-point correction offset value (corrected value))
6.
Set 'CH1 Sensor two-point correction offset latch request' (Un\G566) to Latch request (1). ( Page 312 CH1 Sensor
two-point correction offset latch request)
7.
Check that 'CH1 Sensor two-point correction offset latch completion' (Un\G419) becomes Latch completed (1). (
Page 243 CH1 Sensor two-point correction offset latch completion)
When the latch is completed, the temperature process value (PV) is stored in 'CH1 Sensor two-point correction offset value
(measured value)' (Un\G568). ( Page 313 CH1 Sensor two-point correction offset value (measured value))
8.
Set 'CH1 Sensor two-point correction offset latch request' (Un\G566) to No request (0). ( Page 312 CH1 Sensor two-
point correction offset latch request)
9.
Input the correction gain value.
Enter the value using devices such as a thermocouple, platinum resistance thermometer, and standard DC voltage generator,
or based on a general resistance value.
10.
Set the temperature process value (PV) corresponding to the input for 'CH1 Sensor two-point correction gain value
(corrected value)' (Un\G571). ( Page 315 CH1 Sensor two-point correction gain value (corrected value))
11.
Set 'CH1 Sensor two-point correction gain latch request' (Un\G567) to Latch request (1). ( Page 313 CH1 Sensor
two-point correction gain latch request)
12.
Check that 'CH1 Sensor two-point correction gain latch completion' (Un\G420) becomes Latch completed (1). (
Page 243 CH1 Sensor two-point correction gain latch completion)
When the latch is completed, the temperature process value (PV) is stored in 'CH1 Sensor two-point correction gain value
(measured value)' (Un\G570). ( Page 314 CH1 Sensor two-point correction gain value (measured value))
13.
Set 'CH1 Sensor two-point correction gain latch request' (Un\G567) to No request (0). ( Page 313 CH1 Sensor two-
point correction gain latch request)
14.
Turn from OFF to ON 'Setting change command' (YB). ( Page 166 Setting change command)
15.
Check that 'Setting change completion flag' (XB) is ON. ( Page 162 Setting change completion flag)
16.
Turn from ON to OFF 'Setting change command' (YB). ( Page 166 Setting change command)
17.
Shift the mode to the operation mode. (Turn from OFF to ON 'Setting/operation mode command' (Y1).) ( Page 164
Setting/operation mode command)
18.
Check that the ERR LED is OFF.
When the ERR LED cannot be turned OFF, retry the setting from Step 4 or 9.
• When a CH Sensor two-point correction setting error (error code: 1AH) occurs during the sensor
twopoint correction, correctly configure the setting for the sensor two-point correction. (The value set for the
sensor two-point correction when an error occurred is not written to the temperature control module.)
• To use the value set for the sensor two-point correction even after the power is turned OFF and ON or the
CPU module is reset and the reset is cleared, turn from OFF to ON 'Setting value backup command' (Y8).
1 FUNCTIONS
66
1.19 Sensor Correction Function