ero electronic LFS, User Manual

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28 GB
- The instrument is set for one output only and an
UNDERRANGE is detected, the OUT 1 turns
ON (if reverse action) or OFF (if direct action).
- The instrument is set for heating/cooling action
and an UNDERRANGE is detected, OUT 1 turns
ON and OUT 3 turns OFF.
When P41 is equal to 0 (standard effect) and the
servomotor control output is configured, the
following conditions may occur:
- The instrument detects an OVERRANGE and a
reverse action is assigned to the servomotor out-
put, the OUT 1 (
s
) turns OFF while OUT 2 (
t
)
turns ON.
- The instrument detects an OVERRANGE and a
direct action is assigned to the servomotor
output, the OUT 1 (
s
) turns ON while OUT 2
(
t
) turns OFF.
- The instrument detects an UNDERRANGE and a
reverse action is assigned to the servomotor out-
put, the OUT 1 (
s
) turns ON while OUT 2 (
t
) turns
OFF.
- The instrument detects an UNDERRANGE and
a direct action is assigned to the servomotor
output, the OUT 1 (
s
) turns OFF while OUT 2
(
t
) turns ON.
The sensor leads break can be signalled as:
- for TC/mV input :
OVERRANGE or
UNDERRANGE selected by
a solder jumper
- for mA/V input : UNDERRANGE
Note: On the mA/V input the leads break can be
detected only when the range selected has a zero
elevation (4/20 mA or 1/5 V or 2/10 V)
ERROR MESSAGES
The instrument performs same self-diagnostic
algorithm.
When an error is detected, the instrument shows
on the lower display the “Err” indication while the
upper display shows the code of the detected
error.
ERROR LIST
SEr Serial interface parameter error
100 Write EEPROM error.
150 CPU error.
200 Tentative to write on protected
memory.
201 - 2xx Configuration parameter error. The
two less significant digit’s shown the
number of the wrong parameter (ex.
209 Err show an Error on P9
parameter)
NOTE: When a configuration
parameter error is detected, it is
sufficient to repeat the configuration
procedure of the specify parameter.
299 Error in control outputs selection
301 Error on calibration of the selected
input
302 Feedback potentiometer calibration
error
NOTE: When an error 302 is
detected, push contemporarily the
s
and
t
pushbuttons for loading the
default feedback potentiometer
calibration values then repeat the
feedback potentiometer calibration.
307 RJ input calibration error
400 Control parameters error
NOTE: If error 400 is detected, push
contemporarily the
s
and
t
LFS-servo-1-02.p65 1/14/02, 3:44 PM 28