BEKA BA577E-SS, Руководство пользователя

Страница: 24 / 38

24
5.5.28 Security code: CodE
Access to the instrument configuration menu may be
protected by a four digit alphanumeric security code
which must be entered to gain access. New
instruments are configured with the default security
code
0000
which allows unrestricted access to all
configuration functions.
To enter a new security code select
CodE
from the
configuration menu and press
(
which will cause
the Timer to display
0000
with one digit flashing. The
flashing digit may be adjusted using the
*
and
&
push button, when set as required operating the
(
button will transfer control to the next digit.
When the new security code has been entered press
)
to return to the
CodE
prompt. The revised security
code will be activated when the Timer is returned to
the display mode.
Please contact BEKA associates sales department if
the security code is lost.
5.5.29 Reset configuration to Timer factory
defaults:
r5Et dEF
When the BA577E-SS is configured as a Timer this
function resets the instrument to the Timer factory
defaults shown in sections 5.5
To reset the configuration select
r5Et dEF
from the
configuration menu and press
(
. The BA577E-SS
will display
0000
with the first digit flashing which is a
request to confirm the instruction by entering
5urE
.
Using the
*
or
&
button set the first flashing digit
to
5
and press
(
to transfer control to the second
digit which should be set to
u
. When
5urE
has been
entered pressing the
)
button will reset all the
configuration functions and return the instrument to
the display mode.
Note:
r5Et dEF
does not reset the grand total to
zero.
6. TIMER APPLICATION EXAMPLES
This section illustrates two common applications for
the BA577E-SS when configured as a Timer.
6.1 Measuring the time that a contact is
closed.
In this example a BA577E-SS is required to display
the time that a process area contact is closed. The
display is required in hours and minutes and is to be
reset to zero by an external push button, not by the
instrument front panel push buttons. The operator is
required to zero the grand total by operating the
)
+
*
buttons simultaneously. No security codes
are required to protect access to the configuration
menu or to the grand total reset. When power is
restored after a supply interruption the Timer is to
resume normal operation without manual
intervention.
Figure 11 shows BA577E-SS wiring for this example.
Fig 11 Wiring for displaying time a contact is closed
The required instrument configurations for this
example are shown below.
Function Display Setting
Access code
CodE 0000
Function
FunCtion ELAP5E
Input
inPut ContACt
Terminals 3 & 4 linked to energise input
debounce
dEbounCE dEFAuLt
Display 2
di5P-2 oFF
Start stop
5tAr5toP ControL 2
Units
unit5 12 : 00
Set time
5Et t 9999 : 99 : 99
Direction of count
up or dn up
Power fail
p-fail continue
Local total reset
r5Et . EnbL oFF
Local grand total reset
Clr Gtot on