Watlow Controls 8LS, User Manual

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98 8LS User’s Guide
Appendix A: Ramp Soak
Setting Segment Tolerance
Use this menu to set a positive or negative tolerance value for each
segment. this value is displayed in the engineering units of the process
and is a deviation from the setpoint.
• If you enter a positive tolerance, the process is out of tolerance when
the PV goes above the setpoint plus the tolerance.
•
If you enter a negative tolerance, the process goes out of tolerance
when the PV goes below the setpoint minus the tolerance.
Selectable Values:
-99 to +99, or Off (no tolerance).
Ending a Profile
Use this menu to make a segment the last one in the profile.
Selectable Values: No or Yes.
Repeating a Profile
Use this menu to set the number of times you want a profile to repeat or
cycle.
Selectable Values: 1-99, or C (continuous cycling).
Positive Tolerance Value Negative Tolerance Value
PV out of tolerance
PV within tolerance
Setpoint
PV out of tolerance
PV within tolerance
Setpoint
1 2 3 4 5 6 7 8
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUTPUT%
A SEG 01
TOL? OFF
1 2 3 4 5 6 7 8
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUTPUT%
A SEG 01
LAST? NO
1 2 3 4 5 6 7 8
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUTPUT%
A
CYCLE? 1