YOKOGAWA UP55A User Manual

1-5
IM 05P02C41-01EN
Introduction to Functions
1
1.3ControlFunctions
Control mode schematic diagram Description
Loop control
with
PV auto-selector
PV1
PV2
(RSP)
PV3
(AIN2)
PV4
(AIN4)
OUT
PID
SELECT
“Loop control with PV auto-selector” automatically
selects or calculates the max. value, the min.
value, the average, or difference (of PV1 and PV2)
of two to four PV inputs.
Remote input (RSP) terminal and auxiliary analog
input terminal are required for the inputs 2, 3, and 4.
► 8.1.5LoopControlwithPVAuto-selector,
Heating/cooling Loop Control with PV Auto-
selector, and Position Proportional Loop
Control with PV Auto-selector
PID Control
PID control is a general control using the PID control-related parameters.
► 8.2.1PIDControl
Alarms
Retransmission
output
Electric
furnace
UP55A
4-20 mA DC
Thyristor
SCR
Recorder
TC
Heating/cooling Control
Heating/cooling control is available only for Heating/cooling type.
In Heating/cooling control, the controller outputs the result of control computation after
splitting it into heating-purpose and cooling-purpose signals.
► 8.2.3Heating/coolingControl
UP55A
Cooling (relay signal)
Heating
(4-20 mA DC signal)
TC
Heating unit
Cooling
water
PV
Thyristor
SCR

YOKOGAWA UP55A Specifications

General

Brand	YOKOGAWA
Model	UP55A
Category	Controller
Language	English