Preliminary Hardware Settings - ero electronic LFS Manuel De Service

PRELIMINARY HARDWARE PRELIMINARY HARDWARE PRELIMINARY HARDWARE PRELIMINARY HARDWARE PRELIMINARY HARDWARE
SETTINGS SETTINGS SETTINGS SETTINGS SETTINGS
1) Remove the instrument from its case.
2) It is necessary to set J106 according to the
desired input type as shown in the following figure.
INPUT J106
TYPE 1-2 3-4 5-6 7-8
TC-RTD open close open open
60 mV open close open open
5 V close open close open
10 V open open close open
20 mA open open open close
NOTE NOTE : the not used jumper can be positioned on NOTE NOTE NOTE
pin 7-9
2 4 6 8 10
V101
J106
1 3 5 7 9
Fig. 14
3) Select the output 1 contact : NO (standard) or
NC by setting J102 according to the following
table:
Contact NO (standard)
J102 1 - 2 2 - 3
LFS-1-CC.P65 9
OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT OPEN INPUT CIRCUIT
This instrument is able to identify the open circuit
for TC and RTD inputs.
The open input circuit condition for RTD input is
shown by an "overrange" indication.
For TC input, it is possible to select overrange
indication (standard) or underrange indication set-
ting the CH101 and SH101 according to the follow-
ing table:
9-10
Overrange (STD) CH101 = close SH101 = open
open
Underrange CH101 = open SH101 = close
open
open
Both pads are located on the soldering side of the
CPU card
open
close
SH101
Fig. 15
J102
NC
GB GB
GB GB GB 9
13/07/2004, 14:40
CH101