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(d) When the simultaneous temperature rise parameter cannot be calculated
The simultaneous temperature rise parameter cannot be calculated under the following conditions:
• When the maximum gradient is not determined
• When the saturation time for output is short
The Q64TCN turns CH AT simultaneous temperature rise parameter calculation error status (b1 of Un\G573,
Un\G605, Un\G637, Un\G669) to 1 (ON).
Control status
CH Auto tuning instruction
(Yn4 to Yn7)
CH Simultaneous temperature rise gradient data
(Un\G731, Un\G747, Un\G763, Un\G779)
and
CH Simultaneous temperature rise dead time
(Un\G732, Un\G748, Un\G764, Un\G780)
CH AT simultaneous temperature rise parameter
calculation error status
(b1 of Un\G573, Un\G605, Un\G637, Un\G669)
CH Auto tuning status
(Xn4 to Xn7)
Executed in a sequence program
Executed by the Q64TCN
OFF
PID control Auto tuning PID control
OFF
OFF
ON
ON
ON
0