Watlow MLS - Manual (Page 97)

Setup
MLS User’s Guide 85
Heat/Cool Output Limit
Use this menu to limit the maximum PID control output for a loop's heat
and cool outputs. This limit may be continuous, or it may be in effect for
a specified number of seconds (see Output Limit Time on the next
page). If you choose a timed limit, the output limit restarts when the
controller powers up and when the output goes from Manual to
Automatic control (via the front panel, when the controller changes
jobs, or from ANASOFT.) The output limit only affects loops under
automatic control. It does not affect loops under manual control.
Selectable range: 0-100%
Heat/Cool Output Limit Time
Use this menu to set a time limit for the output limit.
Selectable values: 1-999 seconds, or CONT (continuous).
Heat/Cool Output Override
Use this menu to set an output override percentage. (You can configure a
digital input for the output override in the Setup Global Parameters main
menu.) If the current loop is in Automatic mode and a sensor failure
occurs, the loop switches to the output override percentage, manual
mode. If you change the polarity of the override output to the active
state--for instance, by flipping a "kill switch" you have set up--every
loop switches to the output override percentage you set here.
Selectable range: 0-100%
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
01 HEAT OUTPUT
LIMIT ? 100%
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
04 HEAT OUTPUT
LIMIT TIME ? CONT
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
03 SENSOR FAIL
HT OUTPUT ? 0%