Page 56 - Glass Machinery Plants & Accessories no. 3/2017

FOREHEARTH SOLUTIONS
B ORMIOLI LUIGI'S
Glass Service
REBUILD
Glass Service’s custom-
er Bormioli Luigi had to rebuild
the control system board for a
forehearth and distributor for its
new furnace in Parma.
The main specifications of the
board required were the follow-
ing:
t $POUSPMMFE BSFBT
- one distributor;
- five forehearths;
- 34 controlled temperature
zones;
- five controlled cooling
zones;
- four coupled fans (one
stand-by) controlled in
pressure loop by electronic
glass machinery plants & accessories 3/2017
54
t 'VMM SFEVOEBODZ JODMVEJOH
inverter;
* 0 $16T QPXFS TVQQMZ
t 4*- GPS TBGFUZ JTTVFT
t TFWFO MPDBM UPVDI TDSFFO JOUFS- the safety plant device (back
face;
t POF 4$"%" &UIFSOFU DPOOFD-
UJPO UP UIF MPDBM J'*9 4$"%"
software.
THE CONTROL SYSTEM
The control system is made
up of four different logic control
boards:
$POUSPM TFDUJPO " NBOBHJOH
the complete plant tempera-
ture control and function logic; t
4XJUDIJOH CPBSE NBOBHJOH
the switch from control board
" BOE #
$POUSPM TFDUJPO # UIF TBNF PG
configuration of control board
"
4*- TBGFUZ CPBSE NBOBHJOH
fire, flame injection, etc.).
$POUSPM TFDUJPO " BOE # NBLF
up a complete redundancy con-
trol system with redundancy of
QPXFS TVQQMZ $16T * 0 CPBSE
$POUSPM TFDUJPO " BOE # CPUI
JODMVEF UIF GPMMPXJOH )$
controller configurations:
t UISFF * 0 SBDLT XJUI TMPUT
t UISFF QPXFS TVQQMJFT
t POF $16
BOBMPHVF JOQVUT N"
thermocouple;
t BOBMPHVF PVUQVUT N"
t EJHJUBM PVUQVUT
t EJHJUBM JOQVUT
This configuration is installed
JO FBDI DPOUSPMMFS TFDUJPO " BOE
B, so that the total value of con-
USPMMFS )$ JOTUBMMFE JT UXJDF
the above reported list.
THE SIL2 SAFETY BOARD
5IF 4*- TBGFUZ CPBSE JODMVEFT
UIF GPMMPXJOH )$ DPOUSPMMFS
configurations:
t POF * 0 SBDL XJUI TMPUT
t POF QPXFS TVQQMZ
t POF $16 4*-
t BOBMPHVF JOQVUT
t EJHJUBM PVUQVUT
t EJHJUBM JOQVUT
$POUSPM TFDUJPO " BOE # BSF
supplied with complete redun-
dancy I/O included and the
PQFSBUPS DBO TXJUDI GSPN " UP #
according to plant conditions.
"MM QBSBNFUFS TFUUJOHT TVDI BT
SP, loop configuration, alarm
threshold, OP are aligned in the
boot controller section.
COMBUSTION SYSTEM
SERVOMOTORS
The local combustion sys-
tem servomotors are Honeywell
)FSDVMJOF XJUI UISFF TUFQ
controllers and back-forward
configuration by means of dou-
CMF 0IN QPUFOUJPNFUFST
&BDI QPUFOUJPNFUFS JT DPO-