31
Program Hold
The program may be put on hold (suspended) by any of
three conditions. The lower display shows the type of hold
condition or
OFF
:
H–bACK
–
hysteresis action, the process variable
has deviated beyond hysteresis value.
OPErAt
–
pressed or placed in hold mode by
a logic input .
MN–HLd
–
the instrument has been switched to
manual control mode.
OFF
–
hold function is off.
Press the
switch to change the hold state.
If a logic input has been assigned to the Start/Hold Profile
function, i.e.
P–Strt
has been selected (see
Section 4.10 of
the Programming Guide
), the
switch is disabled.
Reset the Profile
This frame is omitted if a logic input has been assigned to
the Profile Reset function, i.e.
P–rSEt
has been selected
– see
Section 4.10 of the Programming Guide.
no
is displayed on entry to this parameter. When the
switch is pressed to reset the profile the display changes to
YES
then reverts to
no
. If the profile is reset and a hold
condition does not exist (see next parameter) the profile
returns to the beginning of the program and continues to
run. If in a hold condition the profile being performed
is
stopped
and the local set point takes the value of the first
level of the selected profile.
Press the
switch to reset the profile, or advance to the
next parameter.
Continued on next page.
…8.2
Profile States Page
8
PROFILE OPERATION…
HOLd
From top of page 30
OFF
H–bACK
OPErAt
no
rESEt
MN–HLd
