Instruction manual
ITEM TE550
S.p.A.
14.1
- DESCRIPTION OF THE SIGNALS ON THE OPTIONAL BOARDS 50200 OR 50189
52
ELECTRODES END
LIFE CLEAR
This input clears the ELECTRODES END LIFE ALARM output and it is
active closed on the common COM1.
53
DRESSING CLEAR
This input clears the DRESSING ALARM output and it is active closed on
the common COM1.
54
WELD/NO WELD
Input for enabling/disabling the weld. The command changes depending
on how the WELD-NO WELD parameter was programmed in the
FEATURES MENU.
This input is active when closed on the common COM1.
55
ERROR RESET
This input is to be used to delete displayed error messages and it is
active closed on the common COM1.
56
GND
Ground.
57
COM2
To be connected with COM2 present on card TE550.
Connected to
GND conforming to regulation EN60204.
58
59
VE/PRE
VE/PRE
VE inputs for measuring the secondary voltage. It works only with the
optional boards item 50200 and 50097.
PRE inputs for measuring the optional external pressure sensor. It works
only with the optional board 50189. To these inputs, it must be applied a
signal 4-20mA having a range 0-10bar.
60
61
DRESSING ALARM
This output warns that the dressing pre-alarm weld spots number has
been attained.
62
63
ELECTRODES END
LIFE ALARM
This output warns that the electrodes end life pre-alarm weld spots
number has been attained.
Before turning on the TE550 control unit with the supplementary
expansion card, code 50200, check that the ELECTRODES END LIFE
CLEAR input (Pin 52) is NOT active.
Otherwise the control unit does not recognize card 50200.
NOTES:
Components “
F2
” and “
F4
”, located on the control unit connector's side, are delay fuses,
which cannot be reset and that withstand a max current of 3.5 A each. If the ON warning light
does not turn on, check the state of the foregoing components.
The fuses used are “
LITTELFUSE
” 47303.5 Tecna article, Code 21954.
Component “
BC
” stands for the two-position PROG - RUN key lock installed on the control
unit's front panel, traced as code “
RS
” 321054 or as a Tecna article, Code 21955.
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