Watlow EZ-ZONE
®
PM PID Controller
•
24
•
Chapter 3 Keys and Displays
Responding to a Displayed Message
An active message will cause the display to toggle be-
tween the normal settings and the active message in
the upper display and
[Attn]
in the lower display.
Your response will depend on the message and the
controller settings. Some messages, such as Ramping
and Tuning, indicate that a process is underway. If
the message was generated by a latched alarm and
the condition no longer exists or if an alarm has si-
lencing enabled it can be silenced simply by pushing
the Infinity
ˆ
key. Alternatively, use the method be-
low to view all and then clear.
Push the Advance Key to display
[ignr]
in the up-
per display and the message source (such as
[al;h1]
)
in the lower display.Use the Up
¿
or Down
¯
keys
to scroll through possible responses, such as Clear
[`CLr]
or Silence
[`SiL]
. Then push the Advance
‰
or Infinity
ˆ
key to execute the action. See the Home
Page for further information on the Attention Codes.
Display
Parameter Name
Description
Range
Appears If
[Attn]
Attention
An active message will cause
the display to toggle between
the normal settings and the
active message in the upper
display and
[Attn]
in the
lower display.
Your response will depend on
the message and the control-
ler settings. Some messages,
such as Ramping and Tun-
ing, indicate that a process is
underway. If the message was
generated by a latched alarm
or limit condition, the message
can be cleared when the con-
dition no longer exists. If an
alarm has silencing enabled, it
can be silenced.
Push the Advance Key to dis-
play
[ignr]
in the upper dis-
play and the message source
(such as
[Li;h1]
) in the lower
display.
Use the Up
¿
or Down
¯
keys
to scroll through possible re-
sponses, such as Clear
[`CLr]
or Silence
[`SiL]
. Then push
the Advance
‰
or Infinity
ˆ
key to execute the action.
Alternatively, rather than
scrolling through all messages
simply push the Infinity
ˆ
button to generate a clear.
[AL;L1] [AL;L2] [AL;L3]
[AL;L4]
Alarm Low 1 to 4
[AL;h1] [AL;h2] [AL;h3]
[AL;h4]
Alarm High 1 to 4
[AL;E1] [AL;E2] [AL;E3]
[AL;E4]
Alarm Error 1 to 4
[Er;i1]
Error Input 1
[tUn1]
Tuning 1
[`rP1]
Ramping 1
[LP;o1]
Loop Open Error 1
[LP;r1]
Loop Reversed Error 1
an alarm or error message is
active.
