Watlow CLS200 - Resetting a Profile; In Case of a Power Failure

CLS200 Series User’s Guide
Chapter 6: Ramp/Soak
130
If the process variable returns within the segment tolerance before the tolerance alarm time elapses,
the profile returns to RUN mode and the tolerance alarm timer resets.
The following occurs if the profile remains out of tolerance for longer than the tolerance alarm time:
• The controller displays the single loop display with the tolerance alarm (a flashing T)
• The global alarm output turns on
Press ALARM ACK to:
• Turn off the global alarm output
• Reset the tolerance alarm timer
• Clear the tolerance alarm
If the process variable does not return within the tolerance, the tolerance alarm will recur after the
tolerance alarm time elapses again.
If the alarm persists you may want to reset the profile.
Resetting a Profile
To reset a profile, follow these steps:
1. In the single loop display, switch to the loop you want to reset.
2. Press the RAMP/SOAK key three times to see the SET MODE parameter.
3. Press the NO key. The following screen will display:
ALARM
01 A SEG01/05 R
SET MODE? RESET
4. Press YES to reset the profile, and then ENTER to confirm your choice.
When you reset a profile, the following happens:
• The profile returns to the ready segment. The setpoint goes to the ready setpoint, and the
event outputs go to the states you specified for the READY EVENT OUTPUT parameter in
the READY SEGMENT EDIT EVENTS submenu (See Ready Segment Edit Events on page
119.)
• The controller shows you the ASSIGN R/S PROFILE screen in case you would like to
assign a different profile to the loop or select NONE to unassign the profile.
In Case of a Power Failure
If the power fails or the controller is otherwise powered down while running a ramp/soak profile, by
default the profile is set to the START mode when power is restored.
If the POWER UP OUTPUT STATUS parameter in the SETUP GLOBAL PARAMETERS menu is set
to MEMORY, then after a power failure the profile will resume operation at the elapsed time of the
segment that was active when the power failure occurred.