YOKOGAWA UT320 Instruction Manual

<Toc> <6. Function Block Diagram and Descriptions>
6-3
IM 05D01D02-41E 1st Edition : May 31,2000-00
■ Function Block Diagram for Heating/Cooling Type
DI1 DI2
Contact input
SP.NO
Target setpoints 1 to 4
SP.NO=0
LOCALREMOTE
Control computationManual operation
AUTO (ON)/MAN (OFF) switching
AUTOMAN
A/M
*1 *1
DO3
DO2DO1
Alarm 1 Alarm 2
Relay
PV input
terminals
, and
12 1311
PV INPUT
Input selection
Unit selection
Input range conversion
Input bias
Input filter
Communication
terminals to
RS485
2723
Heating/cooling
computation
Heating-side
preset output
Heating-side
output limiter
Cooling-side
preset output
Cooling-side
output limiter
OT
Heating-side
output
OUTPUT1 OUTPUT1
1716
Current or pulse
terminals
and
Relay
terminals
, and
2 31
OT
OUTPUT2
/RET
Current or pulse
terminals
and
1514
Cooling-side
output
RET
15 V loop
power supply
Retransmission
output
Current
terminals
and
1514
Alarm function
SP.NO=1 to 4
Target setpoint
ramp-rate function
OUTPUT2
/LPS
*1: If the setup parameter DIS (DI function selection) is set to “4”,
when the contact input 2 is ON (stop state), that controller outputs the preset output value.
Terminal Parameter Function
Analog signal Contact signal Front panel key
Legend

YOKOGAWA UT320 Specifications

General

Brand	YOKOGAWA
Model	UT320
Category	Controller
Language	English