7-56
Chapter 7. PARAMETER SETUP
●
●
C
6
6
(PV display)
This selects PV display in the basic display state. You can select
between numerical display or no display at all. The setting of this
parameter does not influence PV-related input processing, PID
operation, event output, auxiliary output and alarm display.
Also, to eliminate PV alarm display or PV alarm event output, select
the thermocouple range by the input range to short-circuit the input
terminals.
●
●
C
7
2
(cold junction compensation)
0: Compensated internally
1: Compensated externally
• This selects how thermocouple cold junctions are to be compen-
sated.
• When set to 1, carry out 0°C compensation by an ice box, for
example.
●
●
C
7
4
(voltage time-proportional output system)
0: Input ON again enabled within time-proportional cycle
1: Input ON again disabled within time-proportional cycle
• This selects whether or not to turn output ON again if output is
OFF and the results of PID calculation have changed during the
time-proportional cycle (cycle time).
• The figure below shows each of these differences.
OFF
ON
20 %
50 %
40 %
OFF
ON
20 %
50 %
40 %
Setting=0
Setting=1
Cycle time
Cycle time
Cycle time
Cycle time
PID operation result
PID operation result
