YOKOGAWA TC10 Engineering Manual Download Page 6

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Yokogawa Electric Corporation - TC10 - ENGINEERING MANUAL - PAG. 6

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 first start up the instrument will use a “default”
parameter 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 configure the parameters to
suit your application (e.g.: input type, Control
strategy, alarms, etc.).

To change these parameters you need to enter the
“Configuration mode”.

5.2 INSTRUMENT BEHAVIOUR AT

POWER ON

At power ON the instrument can start in one of the following
mode depending on its configuration:

Auto mode

–

The upper display shows the measured value;

–

The lower display shows the Set point value;

–

The decimal figure of the less significant digit of the lower
display is OFF;

–

The instrument is performing the standard closed loop control.

Manual mode

(OPLO)

–

The upper display shows the measured value;

–

The lower display shows the power output [preceded by

(for heating) or

(for cooling)]. The MAN LED is lit;

–

The instrument does not perform Automatic control;

–

The control output is equal to 0% and can be manually
modified by

and

buttons.

Stand by mode

(St.bY)

–

The upper display shows the measured value;

–

The lower display shows alternately the set point value and
the message

St.bY

;

–

The instrument performs no control (the control outputs
are OFF);

–

The instrument is working as an indicator.

We define all the above described conditions as
“

Standard Display

”.

5.3 HOW TO ENTER THE

“CONFIGURATION MODES”

Note:

The TC10 is equipped with two different “configuration”
methods:

The “code” configuration method;

The “complete” configuration method.

The “

code

” configuration method is really fast but modifies

only the most common configuration parameters.
The “

complete

” configuration method allows to take

advantage of all instrument features, giving more capabilities
it requires more actions and time.
Note that you can take advantage by both methods because if
you use the code configuration and then you enter in the
complete configuration, all selections made by code are still valid.
In both cases the instrument have one complete parameter set.
We call this set “configuration parameter set” (or
“configuration parameters”).
When code configuration method is used all the parameters
not modified by the code will maintain their default values.
In both cases the access to the configuration parameters is
protected by a password (a specific password for each method).

Note:

The instrument will show only the parameters consis-
tent with the specific hardware and in accordance with
the value assigned to the previous parameters
(e.g.: if you set an output as “not used” the instrument
will mask all other parameters related to this output).

5.3.1 “Code” configuration procedure

The controller configuration (Input type, Control mode, etc.)
can be made entering two 4-digit codes.
Before to enter into code configuration we suggest you to
prepare the two codes according to the tables that follow.

Notes: 1.

During the Code configuration procedure there is
no timeout.

To leave, at any time, the Configuration session

without saving

the settings made, press the

button.

To enter into code configuration proceed as follows:

Push the

button for more than 3 seconds.

The upper display will show

PASS

(flashing) while the