Honeywell DCP552 Mark II - Manual (Page 73)

5-27
■ Mode transition operations
Mode transitions are performed using the following operations.
Although “Operation end” is not an operation, it is described here as a factor in
mode transitions.
● RUN
Switches from the READY, HOLD, FAST and READY FAST modes to the RUN
mode. To go from the READY mode or READY FAST to the RUN mode using
keys, external switches or transmission, the DCP552 must be in basic display
status.
● HOLD
Switches from the RUN and FAST modes to the HOLD mode. During constant
value control the HOLD mode cannot be invoked.
● RESET
Switches from the RUN, HOLD, FAST, END and READY FAST modes to the
READY mode.
In program operation, the reset involves returning the program to the first segment.
● ADV
Brings the program forward by one segment in the READY, RUN, HOLD, FAST
and READY FAST modes. ADV (advance) operation is not available in the
constant value control mode.
● FAST
The FAST mode is invoked from the RUN, HOLD, READY and READY FAST
modes. During constant value control the FAST mode cannot be invoked.
● AUTO
Switches from the MANUAL mode to AUTO mode.
● MANUAL
Switches from the AUTO mode to MANUAL mode.
The basic display status shows PV and the output value (%) during this transition.
Switching from AUTO to MANUAL using external switches or transmission
invokes the basic display status even when the parameter setting status or
programmer setting status are in use.
● Operation end
Operation ends when all progress of program settings including cycle and pattern
links reach the end in the RUN, FAST and READY FAST program operation
modes or during an ADV operation. By making a setup selection, it is possible to
set READY or END as the state of the controller when the program reaches its
end.
Note, however, that when an operation ends in the READY FAST mode, it always
ends in the READY mode. In constant value control mode, operation end is not
available.
Chapter 5. FUNCTIONS