ero electronic LFS-mA Manuel De Service page 34

Deviation alarm Deviation alarm Deviation alarm Deviation alarm Deviation alarm
Operative mode : High or low programmable. Operative mode Operative mode
Operative mode Operative mode
Threshold Threshold Threshold : programmable from - 500 to +500 Threshold Threshold
units.
Hysteresis Hysteresis
Hysteresis Hysteresis : programmable from 0.1 % to 10.0 % of Hysteresis
the input span or 1 LDS.
SERIAL COMMUNICATION INTERFACE SERIAL COMMUNICATION INTERFACE SERIAL COMMUNICATION INTERFACE SERIAL COMMUNICATION INTERFACE SERIAL COMMUNICATION INTERFACE
Type Type
Type Type: RS-485 Type
Protocol type Protocol type: MODBUS, JBUS, ERO polling/ Protocol type Protocol type Protocol type
selecting.
Baud rate Baud rate
Baud rate Baud rate: programmable from 600 to 19200 Baud rate
BAUD.
Byte format Byte format Byte format: 7 or 8 bit programmable. Byte format Byte format
Parity Parity Parity: even, odd or none programmable. Parity Parity
Stop bit Stop bit Stop bit : one. Stop bit Stop bit
Address Address
Address Address : Address
- from 1 to 95 for ERO protocol
- from 1 to 255 for all the other protocols
Output voltage levels Output voltage levels Output voltage levels: according to EIA Output voltage levels Output voltage levels
standard.
LFSMA-1-B.pmd 31
MAINTENANCE MAINTENANCE MAINTENANCE MAINTENANCE 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 ) remove all deposit of dust
2
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
- Isopropil Alcohol (pure or denatured)
[(CH ) CHOH] or
3 2
- Water (H O)
2
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.
GB GB GB GB GB 31
29/05/2006, 9.23
H OH] or
2 5