YOKOGAWA UT550 User Manual

<Toc> < 6. Function Block Diagram and Descriptions >
6-3
IM 05D01C02-41E 3rd Edition: May 31, 2006-00
■ Function Block Diagram for Single-loop Heating/Cooling Control
RMS=COMRMS=RSP
SPN
R/L
Alarm function
OT1
A/M
Heating-side
output
OUTPUT1 OUTPUT1
OT1
Cooling-side
output
* Unavailable when heating-side output is current output or pulse.
OUTPUT2 OUTPUT2
Heating/cooling computation
S/R
1716
49 5048
4746
OUTPUT1 OUTPUT3
RT2 RT1
1716
1514
DO7DO4DO3DO2DO1
Alarm
1
Alarm
2
Alarm
3
Alarm
4
FAIL
output
ON in
normal
condition
RS485 DI3 DI4 DI5 DI6 DI1 DI2 DI8INPUT1 INPUT3
STOP(ON)/RUN(OFF) switching
Heating-side output limiter Cooling-side output limiter
Cooling-side
preset output
Heating-side
preset output
PV input terminals
, and
Remote input
terminals and
Communication
terminals to
12 1311
2221
2723
Contact input
Input selection
10-seg. linearizer approx./bias
Analog input filter
Square root extraction
Unit selection
Analog input bias
Analog input range conversion
Input selection
Analog input filter
Square root extraction
Unit selection
Analog input bias
Analog input range conversion
Target
setpoint
selection
REMOTE(ON)/LOCAL(OFF) switching
CommunicationAux. Input
LOCALREMOTE
AUTO(ON)/MAN(OFF) switching
AUTOMAN
PV input filter
PV input bias
Remote setting filter
Ratio/bias calculation
Target setpoint ramp-rate function
Control computationManual operation
Target setpoints 1 to 8
Current or
pulse terminals
and
Relay
terminals
, and
Current orpulse
terminals
and
Relay
terminals
, and
Current*
terminals
and
Current
terminals
and
2 31
15V loop
power supply
Retransmission
output
Terminal Parameter Function
Analog Signal Contact Signal Front Panel Key
Legend

YOKOGAWA UT550 Specifications

General

Brand	YOKOGAWA
Model	UT550
Category	Controller
Language	English