Carbolite nanodac - Manual (Page 35)

nanodac™
33
MC27 –EN–1.04
Programmer Display Mode (cont.)
PROGRAM DETAILS (Cont.)
HOLDBACK
Holdback pauses the program (freezes the Programmer setpoint (PSP) and the time remaining
parameters) if the difference between the Process value (PV) and the PSP exceeds a user-specified
amount (Holdback value). The program remains paused until the PV returns to within the specified
deviation.
In ramp or step segments, holdback indicates that the PV is lagging the SP by more than the specified
amount and that the program is waiting for the process to catch up. In a dwell segment, holdback is used
to guarantee that a work piece stays at set-point within a specified tolerance for the specified dwell
duration.
Figure 1.4.9e Holdback
SEGMENT CONFIGURATION
Figure 1.4.9f Segment configuration
Segment Number Select the relevant segment for configuration.
Segment Name Enter a segment name of up to 20 characters. This name will be truncated on the
display page if it, together with the program name, are too long to fit the width of
the display area.
Progrm name (Segment name)
Segment Number
Segment Name
Type
Ch1TSP
Ch1 Time
Ch1 Holdback
Ch1 Holdback Val
Ch1 PVEvent
Ch1 PVEvent Val
Ch1 User Val
Ch2TSP
Ch2 Time
Ch2 User Val
Program Edit
1
Heat init
Ramp
43.358 °C
00:10:30
High
5.0 °C
Abs High
58 °C
40.0
19.5 °C
00:01:00
33.00
Event 1
Event 2
Holdback applied
Holdback
applied
Holdback
released
Holdback released
Holdback value
PV
PSP