Watlow MLS-PM, User Manual

Page: 66 / 144

Using the MLS
MLS User’s Guide 53
If only one output is enabled (heat or cool, but not both), Single Loop
display looks like this:
Navigating in Single Loop Display
From the single loop display,
• Press the Back key once to get back to Bar Graph display.
• Press Enter twice to get to the Single Loop Scanning display. (The
Single Loop Scanning display shows information for each loop in
sequence. Data for each loop displays for one second.)
• Press Back, Yes, or No to return to the Single Loop display.
Interpreting Alarm Display
If an alarm occurs, the alarm interrupts any other display and switches
to the alarm display, as shown in the next figure. If the MLS is in Bar
Graph display, it switches to Bar Graph Alarm display. If it is in Single
Loop display, it switches to Single Loop Alarm display.
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
02 160
º
F 0
180 AUTO 100
Control Status
Output Percentage
Heat
Output Percentage
Cool
Engineering Units
Process Variable
Setpoint
Loop Number
or Name
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
01 08
AAAA MAMA
Loop Number
or Name
Alarm Symbols Loop Status
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
02 180
º
F
LP 180 AUTO 0
Engineering Units
Output Percentage
Setpoint
Alarm Symbols
Loop number
or Name
Process Variable