Wait - Omron E5AR-T User Manual

Section 5 Functions and Operations
● SP Tracking

■ Wait

5-32
The operation is as follows:
(1) Switch from Program SP to
Fixed SP in segment N.
(2) The mode changes to Fixed SP.
(3) Return to Program SP from
Fixed SP in segment N+1.
• If the Operation at Reset
parameter is set to
control, the timer will not start
when the Run/Reset parameter is changed to "Run" in Fixed SP or
Remote SP Mode.
• When the SP Tracking parameter
is set to "ON," the program SP is
held after the mode is changed
from Program SP to Fixed SP and
until the Fixed SP is changed.
The SP is not tracked when the
mode is changed from another
mode into either Program SP or
Remote SP.
• The diagram on the right shows
SP tracking when the mode is
changed from Program SP to
Fixed SP.
• If at the end of a program segment the difference (deviation)
between the PV and the present set point (program SP) is not within
a preset range, the program can be set to not continue. This is
called the "wait" operation and the preset range is called the "wait
band."
• If the PV enters the wait band during wait operation, the program will
immediately move to the next segment.
• There are two types of wait operation: "Wait at Segment End" and
"Always wait," which can be selected by setting the Wait Mode
parameter. The wait operation can be enabled and disabled for each
segment.
• Upper and lower limits can be set for the wait band and these can be
set for each program. The wait operation will be disabled if the Wait
Band parameter is set to 0.
SP
PSP FSP
FSP PSP
PSP FSP
FSP changed.
stop
Segment N
SP
PSP
PSP FSP
PSP
SP
FSP
PSP FSP
PSP
Segment N+1 Time
FSP
Time
With SP tracking
FSP
Time
Without SP tracking