YOKOGAWA UT55A User Manual

17-23
IM 05P01C31-01EN
Installation and Wiring
17
The following table shows the initial status for each control mode and control type.
Controlmodeandcontroltype AL1terminal AL2terminal AL3terminal
Single-loop Control
Single-loop Heating/cooling Control
Single-loop Position Proportional Control
Single-loop Two-position Two-level
Control
LoopControlwith
PVSwitching
Heating/coolingLoopControlwithPV
Switching
Position Proportional Loop Control with
PVSwitching
LoopControlwithPVAuto-selector
Heating/coolingLoopControlwithPV
Auto-selector
Position Proportional Loop Control with
PVAuto-selector
LoopControlwithPV-holdFunction
Heating/coolingLoopControlwithPV-
hold Function
Position Proportional Loop Control with
PV-holdFunction
Alarm 1
(PVhighlimit)
Alarm 2
(PVlowlimit)
Alarm 3
(PVhighlimit)
Cascade Primary-loop Control
Loop Control for Backup
Heating/cooling Loop Control for Backup
Position Proportional Loop Control for
Backup
Alarm 1
(PVhighlimit)
Alarm 2
(PV
lowlimit)
FAIL
Cascade Secondary-loop Control
Cascade Secondary-loop Heating/cooling
Control
Cascade Secondary-loop Position
Proportional Control
Alarm 1
(PVhighlimit)
Alarm 2
(PVlowlimit)
Tracking switch (to
Loop-1 controller)
Cascade Control
Cascade Heating/cooling Control
Cascade Position Proportional Control
Alarm 1
(Loop-1PVhigh
limit)
Alarm 2
(Loop-1PVlow
limit)
Alarm 3
(Loop-1PVhigh
limit)
Whenthesuffixcode:Type2=1,3,5,or6,thefollowingfunctionisassignedtoDO21to
DO25. However, alarms 5 to 8 are not displayed for the factory default.
DO21:Alarm4
(PVlowlimit)
DO22:Alarm5(PVhighlimit)
DO23:Alarm6(PVlowlimit)
DO24:Alarm7(PVhighlimit)
DO25:Alarm8(PVlowlimit)
17.4.8 RetransmissionOutputWiring
Whenretransmissionoutputisnotusedforretransmissionoutput,itcanbeusedfor15V
DC loop power supply.
The current output range can be changed.
206
205
208
207
512
511
Class D grounding
(grounding resistance
of 100 Ω or less)
OUT
terminals
RET
terminals
OUT2
terminals
Shield
–
+
Receiver
(Recorder etc.)
Receiving resistor:
600 Ω or less
17.4 Wiring

YOKOGAWA UT55A Specifications

General

Brand	YOKOGAWA
Model	UT55A
Category	Temperature Controller
Language	English