ero electronic TMS - Special Function; Maintenance

24
GBGB
GBGB
GB
HEATER BREAK DOWN ALARMHEATER BREAK DOWN ALARM
HEATER BREAK DOWN ALARMHEATER BREAK DOWN ALARM
HEATER BREAK DOWN ALARM
This alarm allows to verify, continuously, the
current consumed by the load driven by the main
output and to generate an alarm condition when
this current is lower than a programmable
threshold.
ResolutionResolution
ResolutionResolution
Resolution: 1 digit.
Alarm hysteresisAlarm hysteresis
Alarm hysteresisAlarm hysteresis
Alarm hysteresis: 1 % of the selected range.
Alarm indicationAlarm indication
Alarm indicationAlarm indication
Alarm indication: ’AL2 HB" LED flash when the
alarm is in ON condition.
SPECIAL FUNCTIONSPECIAL FUNCTION
SPECIAL FUNCTIONSPECIAL FUNCTION
SPECIAL FUNCTION
Output power OFFOutput power OFF
Output power OFFOutput power OFF
Output power OFF
This function allows to turn OFF manually the
output signal and to inhibit the control algorithm
and the alarm functions.
In this way the controlled element is turned OFF
and the instrument operate as an indicator.
When the control restart, the instrument operates
as follows:
- the integral action will be set to 0.
- the soft start function and alarm masking will be
reactivated.
LAMP TESTLAMP TEST
LAMP TESTLAMP TEST
LAMP TEST
This function allows to verify the correct LED
operativity.
MAINTENANCEMAINTENANCE
MAINTENANCEMAINTENANCE
MAINTENANCE
1) REMOVE POWER FROM THE POWER
SUPPLY TERMINALS AND FROM RELAY
OUTPUT TERMINALS
2) Remove the instrument from case.
3) Using a vacuum cleaner or a compressed air
jet (max. 3 kg/cm
2
) remove all deposit of dust
and dirt which may be present on the louvers
and on the internal circuits trying to be careful
for not damage the electronic components.
4) To clean external plastic or rubber parts use
only a cloth moistened with:
- Ethyl Alcohol (pure or denatured) [C
2
H
5
OH]
or
- Isopropil Alcohol (pure or denatured)
[(CH
3
)
2
CHOH] or
- Water (H
2
O)
5) Verify that there are no loose terminals.
6) Before re-inserting the instrument in its case,
be sure that it is perfectly dry.
7) re-insert the instrument and turn it ON.