Yokogawa Electric Corporation - TC10-L - ENGINEERING MANUAL - PAG. 5
5. CONFIGURATION PROCEDURE
5.1 INTRODUCTION
When the instrument is powered, it starts immediately
to work according to the parameters values loaded in its
memory.
The instrument behaviour and its performance are governed
by the value of the stored parameters.
At the fi rst start up the instrument will use a “default” param-
eter set (factory parameter set); this set is a generic one
(e.g. a TC J input is programmed).
WARNING!
Before connecting the output actuators, we
recommend to confi gure the parameters to
suit your application (e.g.: input type, Control
strategy, alarms, etc.).
To change these parameters you need to enter the “Confi gu-
ration mode”.
5.2 INSTRUMENT BEHAVIOUR AT POWER
ON
At power ON the instrument can operate in two different
mode according to the value assigned to [34] r.md param-
eter [34] r.md equal to 0
(Limit output is de-energized at power on in any cases.)
The output relay is always de-energized (opened) at power-
on,even if PV does not exceed SP(A). The output (OUT)
display lamp is lit. If thePV does not exceed SP, after the
confi rming operation, output relay will be energized (closed)
and the output (OUT) display lamp turns off .
SP
HYS
PV
(A)
(B)
(C)
(A)
(B)
(D)
EXCEEDED
LAMP
OUT
LAMP
lit
off
OUTPUT
RELAY
confirmation
(accepted)
confirmation
(not accepted)
lit
off
Energized
De-energized
OFF
OFF
OFF
Lit
OFF
Lit
OFF
ON
OFF
Lit
OFF
Power
ON
OFF
[34] r.md equal to 1(Limit output is de-energized at power on
in any cases.)The state of output relay is energized (closed)
and the output (OUT) display lamp turns off if the PV does
not exceed SP at power-on.
SP
HYS
PV
(A)
(B)
(D)
(C)
EXCEEDED
LAMP
OUT
LAMP
lit
off
OUTPUT
RELAY
confirmation
(accepted)
lit
off
Energized
De-energized
OFF
OFF
OFF
Lit
ON
OFF
Lit
OFF
Power
ON
OFF
OFF
ON
OFF
5.3 HOW TO ENTER THE
“CONFIGURATION MODES”
The confi guration procedure allows to take advantage of all
instrument features.
The instrument have one complete parameter set.
We call this set “confi guration parameter set” (or
“confi guration parameters”).
The access to the confi guration parameters is protected by a
password.
5.3.1 Complete confi guration procedure
The confi guration parameters are collected in various
groups. Every group defi nes all parameters related with a
specifi c function (e.g.: control, alarms, output functions).
1.
Push the
button for more than 3 seconds. The upper
display will show
PASS
while the lower display will show
0
.
2.
Using
and
buttons set the programmed password.
Notes: 1.
The factory default password for confi guration
parameters is equal to 30.
3.
Push the
button
If the password is correct the display will show the acronym
of the fi rst parameter group preceded by the symbol:
]
.
In other words the upper display will show:
]inp
(group of the
Input parameters
).
The instrument is in confi guration mode.
5.4 HOW TO EXIT THE “CONFIGURATION
MODE”
Push
button for more than 3 seconds, the instrument will
come back to the “standard display”.
5.5 KEYBOARD FUNCTIONS DURING
PARAMETER CHANGING
A short press allows to exit from the current parameter
group and select a new parameter group.
A long press allows you to close the confi guration
parameter procedure (the instrument will come back
to the “standard display”).
When the upper display is showing a group and the
lower display is blank, this key allows to enter in the
selected group.
When the upper display is showing a parameter and
