206
(c) 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 temperature control module turns CH
Simultaneous temperature rise parameter error status (b9 of
RWr14 to RWr17) to 1 (ON).
To restore CH
Simultaneous temperature rise parameter error status (b9 of RWr14 to RWr17) to 0 (OFF), set the following.
• Set CH
Self-tuning setting (address: 2C0H to 2C3H) to Do not run the ST (0).
To calculate the simultaneous temperature rise parameter, execute self-tuning again after the temperature has dropped.
(d) Stopping of calculation for the simultaneous temperature rise parameter
The optimum simultaneous temperature rise parameter may not be able to be calculated depending on the
characteristics of a controlled object. In addition, when a self-tuning has been completed with an error, the
temperature control module will stop calculation. For the conditions where a self-tuning completes with an
error, refer to the following.
(
(e) How to set the simultaneous temperature rise parameter using self-tuning
1.
Set "Method selection" to "Param write" of the control mode to be used.
"CC IE Field Configuration" window
Select the temperature control module from "List of
stations"
[CC IE Field Configuration]
[Online]
[Parameter Processing of Slave Station]
2.
Select either of the following setting values for "CH
Self tuning setting".
• "2: Starting ST (Simultaneous temperature rise parameter only)"
• "3: Starting ST (PID constant and simultaneous temperature rise parameter)"
OFF
OFF
ON
ON
0
Control status
PID control
Self-tuning
PID control
Temperature control start,
set value (SV) change,
or oscillation detected
CH□ Simultaneous temperature rise gradient data
(address: 2D1H, 2D5H, 2D9H, 2DDH)
and
CH□ Simultaneous temperature rise dead time
(address: 2D2H, 2D6H, 2DAH, 2DEH)
CH□ Simultaneous temperature rise parameter
error status (b9 of RWr14 to RWr17)
CH□ Auto tuning status
(RX20 to RX23)
Controlled by the temperature control module
Содержание NZ2GF2B-60TCRT4
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