Watlow MLS - Manual (Page 90)

78 MLS User’s Guide
Setup
Heat/Cool Control PB
Use this menu to set the Proportional Band.
NOTE
The MLS internally represents the proportional band
(PB) as a gain value. When you edit the PB, you'll see
the values change in predefined steps--small steps for
narrow PB values and large steps for wide PB values.
The controller calculates the default PB for each input type according to
the following equation:
Heat/Cool Control TI
Use this menu to set the Integral term, or Reset.
Selectable range: 0-6000 seconds.
Heat/Cool Control TD
Use this menu to set the derivative constant.
Selectable range: 0-255 seconds.
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
01 HEAT CONTROL
PB? 50
º F
Default PB =
(High Range - Low Range)
Gain
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
01 HEAT CONTROL
TI ? 180 SEC/R
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
15 HEAT CONTROL
TD ? 0 SEC