Chromalox 2104 User Manual

30 Chromalox 2104 Technical Manual
Fuzzy Logic Overshoot Protection
Fuzzy Logic Overshoot Protection (CTRL PAGE,
FL) works to minimize the overshoot that
accompanies standard PID control. The 2104
actively learns the characteristics of the load and
adjusts the PID control algorithm to reduce
overshoot. Overshoot Protection, when combined
with PID constants established by the 2104 tuning
algorithm, produces a response that brings the
process to setpoint with a minimum of overshoot.
Fuzzy Logic overshoot protection is not possible with
ON/OFF type control. It is recommended that Fuzzy
Logic is always enabled.
Control
Operation
(continued)
FF
FF
F
LL
LL
L
OO
OO
O
NN
NN
N
AUX ▲▼
RESET
Ramp to Setpoint
(CTRL PAGE, RRAT = 1 to 9999 degrees/hour or OFF)
The Ramp to Setpoint feature allows the control
setpoint to be ramped to the final value at powerup
or during operation when the setpoint is adjusted.
At powerup, the setpoint is ramped from the current
measured process temperature to the control
setpoint. During operation, the setpoint is ramped
from the current value to the new value. When
enabled, Ramp to Setpoint will begin in any of the
following situations:
•Powerup
•Change of setpoint from front panel
•Change of setpoint from digital communications
•Digital Input or Aux Key used to change
between the local and auxiliary setpoints
•Digital Input or Aux Key used to change
between the local and remote setpoints
•Remote Setpoint is active and the remote device
changes the setpoint faster than the programmed
ramp rate
RRRR
RRRR
RR
AA
AA
A
TT
TT
T
20 20
20 20
20
AUX ▲▼
RESET

Chromalox 2104 Specifications

General

Brand	Chromalox
Model	2104
Category	Temperature Controller
Language	English