Operation
535 User's Manual
Chapter 2, Controller Operation
9
535
MANUAL
DISPLAY
RUN
ACK
MENU
FAST
OUT
1
ALM
1
BEFORE
AFTER
535
MANUAL
DISPLAY
RUN
ACK
MENU
FAST
OUT
1
Figure 2.2
Before and After Acknowledging
an Alarm
2. If the code is correct, CORRECT appears in the 3rd display. The display
will clear after two seconds, allowing full access.
4. If code is incorrect, INCORRECT appears in the 3rd display. This will dis-
appear after two seconds, and a new security code can then be entered.
5. The controller will revert back to full security lock after one minute of key
inactivity.
To display control output value
1. Toggle
DISPLAY
key until the 2nd display shows OUT followed by the output
percentage. This value is the PID output.
•
In duplex applications, this value does not directly refer to the output
signal (refer to the Chapter 7 section on Duplex Control for details.)
•
For on/off outputs, the output value shown is either ON or OFF.
•
For duplex applications with two on/off outputs, the OUT tag is not shown.
In this case, the status of both outputs is shown in the following man-
ner: 1:ON 2:OFF (1 and 2 are the respective outputs).
To display the active PID set
1. Press
MENU
to reach Tuning Mode.
2. In
TUNING
Mode, press
MENU
to reach the correct Menu parameter.
3. The active PID set will have an asterisk (*) on both sides of the value.
ALARM OPERATION
Alarms may be used in systems to provide warnings of unsafe conditions. All
535 operators must know how the alarms are configured, the consequences of
acknowledging an alarm and how to react to alarm conditions.
Alarm Indication
•
lit icons
ALM 1
and/or
ALM 2
•
lit
ACK
key
•
displayed alarm message
Acknowledgable alarms meet the first two of these conditions.
Non-acknowledgable alarms only meet the first condition (only icon is lit).
