YOKOGAWA F3CU04-0S User Manual

C1-9
IM 34M06H62-02E 2nd Edition : June 2008-00
Table C1.7 Parameters Related to Two-input Changeover Control
Data Position Number
Symbol Description Unit Data Range
Default
Value
Attribute Stored
See
Also
Loop1 Loop2 Loop3 Loop4
101 301 501 701 PVIN Input process value
Industrial
unit
-5 to 105% of (SL to SH) — RO —
C3
102 302 502 702 PV Process value
Industrial
unit
-5 to 105% of (PRL to PRH) — RO —
303 703 CSP Control set point
Industrial
unit
PRL to PRH — RO — C4
304 704 HOUT Control output %
OL to OH: for single output
0 to OH: for heating/cooling
output
— RO —
C2
C7.1
305 705 COUT Cooling control output %
0 to OL: for heating/cooling
output
— RO —
321 721 RUN/STP Run/stop selection None 0: Stop; 1: Run 0 RW —
C7.1
322 722 A/M/C
Automatic/manual/
cascade selection
None 0: Automatic, 1: Manual 0 RW —
C7.2
C7.4
323 723 INSEL Input selection None 0: Input 1, 1: Input 2 0 RW —
C3.11
324 724 RMT/LOC
Remote/local
selection
None
0: Local
1: Remote
0 RW —
C7.3
125 325 525 725 EXPV/PV
External/normal input
selection
None
0: Normal input
1: External input
0 RW — C3.12
326 726
EXOUT/
OUT
External/normal
output selection
None
0: Normal output
1: External output
0 RW —
C2.6
328 728 SPNO SP number selection None
1 to 4 1 RW — C4.1
131 331 531 731 EXPV External input
Industrial
unit
-5 to 105% of (SL to SH) SL RW — C3.12
333 733 RSP Remote set point
Industrial
unit
PRL to PRH PRL RW —
C4.2
334 734 MOUT Manual output %
OL to OH: for single output
0 to OH: for heating/cooling
output
0 RW —
C7.2
C7.4
335 735 MOUTC Manual cooling output % 0 to OL 0 RW —
336 736 EXOUT External output % -5.0 to 105.0% 0 RW —
C2.6
361 761 SELMD
Two-input changeover
mode
None
0: Automatic changeover
using temperature range
1: Automatic changeover
using upper limit
2: Manual changeover using
input selection
0 RW 
C3.11
362 762 SELH
Two-input changeover
upper limit
Industrial
unit
PRL to PRH if SELL < SELH.
If SELL  SELH, changeover
occurs with respect to SELH.
PRL+
1
RW 
363 763 SELL
Two-input changeover
lower limit
PRL RW 
In two-input changeover control mode, loops 1 and 2, or loops 3 and 4 form a pair; the
even-numbered loop (loop 2 or 4) takes control and the input process value switches
between the input process values of the odd-numbered loop and the even-numbered loop.
For the odd-numbered loop, only the PV-related functions are used.
For the even-numbered loop, the PV-related functions switch between the input process
value of the odd-numbered loop and the even-numbered loop. Changeover is performed
manually (using operation control parameters) or automatically (by specifying higher/lower
temperature ranges). When changeover is based on temperature ranges, the
odd-numbered loop covers the lower temperature range while the even-numbered loop
covers the higher temperature range.
For details on individual functional blocks, see Sections C3, "PV-related Functions," C4,
"SP-related Functions," C6, "Control and Computation Function," and C2, "Output-related
Functions."
TIP
The two-input changeover control mode uses two sets of PV processing functions, and is useful
especially for switching between two control targets according to the operating status, or switching
between two types of sensors according to the monitored temperature.

YOKOGAWA F3CU04-0S Specifications

General

Brand	YOKOGAWA
Model	F3CU04-0S
Category	Control Unit
Language	English