Mitsubishi Electric MELSEC iQ-R Series User Manual page 250

CH1 Derivative time (D) setting
Set the derivative time (D) to execute the PID control.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Derivative time (D) setting
CH Derivative time (D) setting (in the Q compatible mode)
■Setting range
The setting range is 0 to 3600 (0 to 3600s).
■P control or PI control
Set 0. For details on control methods, refer to the following:
Page 18 Control Method
■Default value
The default value is 60 (60s).
CH1 Alert set value 1
According to a selected alert mode of Alert 1, set the temperature at which CH1 Alert 1 (Un\G401, b8) turns ON.
For 'CH1 Alert definition' (Un\G401), refer to the following:
Page 230 CH1 Alert definition
For details on the alert function, refer to the following:
Page 72 Alert Function
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Alert set value 1
CH Alert set value 1 (in the Q compatible mode)
■Alert mode
Set the alert mode of Alert 1 in the following buffer memory area. The alert mode of Alert 1 corresponds to 'CH1 Alert set
value 1' (Un\G434).
• 'CH1 Alert 1 mode setting' (Un\G533)
■Setting range
The setting range differs depending on the setting of the following buffer memory area. (Each full scale differs.)
• 'CH1 Input range' (Un\G501) ( Page 254 CH1 Input range)
The setting range also depends on the alert mode to be set.
Alert mode
No alert
Upper limit input alert, lower limit input alert
Upper limit deviation alert, lower limit deviation
alert, upper limit deviation alert (set value (SV)
used), lower limit deviation alert (set value (SV)
used)
Upper/lower limit deviation alert, within-range alert,
upper/lower limit deviation alert (set value (SV)
used), within-range alert (set value (SV) used)
When a value out of the setting range is set in this area, an out of setting range error (error code: 1950H) occurs and the
following operations will be executed:
• 'Error flag' (X2) turns ON.
• An error code is stored in 'Latest error code' (Un\G0).
APPX
248
Appendix 3 Buffer Memory Areas
CH1
433
37
CH1
434
38
Setting range of Alert set value
0
Temperature measuring range of the input range
(-(Full scale)) to Full scale
0 to Full scale
CH2 CH3
633 833
69 101
CH2 CH3
634 834
70 102
Remarks

Same as with standby
Same as with standby and standby (second time)
Same as with standby and standby (second time)
CH4
1033
133
CH4
1034
134