YOKOGAWA UP35A, User Manual

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8-6
IM 05P02D41-01EN
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Single-loop Position Proportional Control Function Block Diagram
SP limiter
PV input
PV
Input type
Input unit
Input range/scale
PV input bias
PV input filter BS
FL
CNT ALG
SPH, SPL
UNIT
IN
RH, RL SDP SH, SL
Equipped as standard
Control computation
Manual operation
Input error preset output
Preset output
AUTO
When sensor burnout occurs
Normal
MAN
RUN RESET
Output limiter
EPO
OH, OL
PO
Signal comparison
Feedback input
Direct/reverse signal
Valve position sliding
resistor or current
Motor-operated valve
Relay output
VALV
FBIN
M
Equipped as standard Equipped as standard
Current Current
OUT RET
HYS
DB
OUT retransmission output
O1RS
RET retransmission output
RTS
In Estimating-type position proportional control, the limiter function
does not work on output operation.
The reverse-signal relay turns on when being limited by low limit.
The direct-signal relay turns on when being limited by high limit.
H relay
( key)
L relay
( key)
In Manual operation, the relay turns on while the
or key is pressed. Output limiter does not work.
Terminal Parameter Function
Analog signal Contact signal Front panel key
Legend
PV display SP display
Input ladder calculation program (signal goes to the control computation as is when without ladder program). For ladder program, see the LL50A Parameter Setting Software User’s Manual.
Position Proportional Computation Output cannot be calculated by ladder program.
RS-485, Ethernet, PROFIBUS-DP, DeviceNet, CC-Link
Com.
Program pattern
Local target setpoint Reset
TSP S.PID
PTNO.
TIME TM.RT
L.PID
LSP
SSP
LOC
RUN
RST
RESET/RUN switch
DI45 DI44 DI43 DI42 DI41 DI2 DI1 DI3
Contact inputs
Start of program operation
when DI changes from OFF to ON.
Stop of program operation
when DI changes from OFF to ON.
Start of local-mode operation
when DI changes from OFF to ON.
Program pattern
selection
(Select a
number during a
RESET state.)
RST
A/M
LOC
RUN
AL3 AL2 AL1
PV event 1 PV event 2
Alarm 1 Alarm 2
Time event 1 Time event 2 Time event 3 Time event 4
DO13 DO12 DO11 DO14 DO15
PV event, Time event, Alarm
(For Standard model) DO11 to
DO15 are equipped
when suffix code: Type 2 = 1.
(UP35A)
Output ladder calculation program (signal goes to the output as is when without ladder program). For ladder program, see the LL50A Parameter Setting Software User’s Manual.
(For Detailed model) DI41 to DI45 are equipped
when optional suffix code /X4. (UP35A)
(For Standard model) DI41 to DI45 are equipped
when suffix code: Type 2 = 1. (UP35A)
LPS
24 V loop
power supply
For optional suffix code /L4
(For Detailed model) DO11 to
DO15 are equipped
when optional suffix code /Y1.
(UP35A)
Analog input bias
Analog input filter
A.BS
A.FL
8.1 Control Function Block Diagrams