7.10.5
Integral time adjustment
The integral time should be adjusted for the quickest settling time without caus-
ing instability. As a general rule, the optimum integral time is about 80% of the
period of the natural oscillation of the system.
7.11
Operating Parameters
The operator of the controller has access to setup constants. The correct values
are important for the safety of the system.
The operating parameters menu is indicated by,
PAR
Operating parameters menu
Press “SET” to enter the menu.
7.11.1
HL and LL
These parameters set the high and low set-point limits of the system. These pa-
rameters should not be set beyond the safe operating temperature limits of the
system.
From the “
PAR
” menu press “SET”.
HL
High level set-point
Press “SET” to adjust the high level set-point or press “EXIT” to access the low
level set-point.
S
Access high level set-point value
H= 800
Adjust the high level set-point
D
Decrement the high level set-point
H= 400
New high level set-point
When the desired high level set-point value is reached, press “SET” to accept
the new value and access the low level set-point.
S
LL
Low level set-point
Press “SET” to adjust the low level set-point or press “EXIT” to access the dec-
imal place setting.
31
7 Controller Operation
Operating Parameters
