Manual Function; Serial Link - ero electronic LFS Manuel De Service

MANUAL FUNCTION

MANUAL FUNCTION MANUAL FUNCTION MANUAL FUNCTION MANUAL FUNCTION
The MANUAL mode function can be accessed
(only if enabled by P26=On) by depressing the
MAN pushbutton for more than 1 sec.
The command is accepted and executed only if
the display is in "Normal Display Mode".
When in MANUAL mode the LED's MAN
annunciator will light up while the lower display
shows the power output values.
The value of OUT 1 is shown in the two most
significant digit field while the value of OUT 2 (if
present) is shown in the two less significant digit
field.
The decimal point between the two values will be
flashing to indicate instrument in manual mode.
Note: A graphic symbol " " is used for
OUT1 = 100
A graphic symbol " " is used for
OUT2 = 100
The power output can be modified by using
and pushbuttons.
By depressing, for more than 1 second, MAN
pushbutton the device returns in AUTO mode.
The transfer from AUTO to MANUAL and
viceversa is bumpless (this function is not
provided if integral action is excluded).
If transfer from AUTO to MANUAL is performed
during the first part of SMART algorithm (TUNE)
when returning in AUTO the device will be forced
automatically in the second part of the SMART
algorithm (ADAPTIVE).
At power up the device will be in the AUTO mode
or as it was left prior to power shut down
depending on P33 configuration selection.
Note Note: When start up occurs in Manual mode the Note Note Note
power output (OUT1 - OUT2) is set to 0.
LFS-1-CC.P65 21

SERIAL LINK

SERIAL LINK SERIAL LINK SERIAL LINK SERIAL LINK
The device can be connected to a host computer
by a serial link.
The host can put the device in LOCAL (functions
and parameters are controlled via keyboard) or in
REMOTE (functions and parameters are
controlled via serial link).
The REMOTE status is signalled by the decimal
point (labelled REM) at the right hand of the LSD
of the upper display.
This instrument allows to modify the operative
and configuration parameters, via serial link.
The necessary conditions to implement this
function are the following:
1) Serial parameters from SEr1 to SEr4 should be
properly configured using the standard front
keyboard procedure
2) Device must be in the OPERATING mode
During the downloading configuration the device
goes in open loop with all output in OFF state.
At the end of configuration procedure, the device
performs an automatic reset and then returns to
close loop control.
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13/07/2004, 14:40