YOKOGAWA UT350, Instruction Manual

Page: 35 / 82

<Toc> <3. Operations>
3-1
IM 05D01D02-41E
3. Operations
This chapter describes key entries for operating the controller. For operations using
external contact inputs, see “1.5 Terminal Wiring Diagrams.” If you cannot remem-
ber how to carry out an operation during setting, press the
S E T / E N T
key for more than 3
seconds. This brings you to the display (operating display) that appears at power-
on.
NOTE
Do not use the instrument generating strong magnetic field such as radio equipment and
the like near the controller. This may cause the fluctuation of the PV value.
3.1 Monitoring-purpose Operating Displays
Available during Operation
The monitoring-purpose operating displays available during operation are roughly classi-
fied into two groups depending on the types of controller. One group is operating displays
for a standard controller and the other group is operating displays for a heating/cooling
controller.
■
Operating Displays for a Standard Controller
●
SP Display
The PV input value appears on the PV display.
The target setpoint (1.SP) appears on the Setpoint display.
●
OUT Display
The PV input value appears on the PV display.
The control output value (OUT) appears on the Setpoint display.
Operating Displays
P V
MAN
A / M
S P
AL1 2 3
SP 2 3 4
S E T / E N T
P V
MAN
A / M
S P
AL1 2 3
SP 2 3 4
S E T / E N T
Target
Setpoint
SET/ENT
key
Output
value
SP display
(allows the target
setpoint to be changed)
OUT display
(allows the control
output value to be changed)
Power-on
Output-value
symbol “o”
1st Edition : May 31,2000-00