Service manual

30 Siemens-Elema AB E382 E380E 061 01 03 01
Description of functions Servo Ventilator 300/300A
2
Control unit – Control section
The Control section consists of the main
blocks 3 – 7 which are described below.
A ”mother” board, PC 1617 CONTROL
INTERCONNECTION
, provides signal connections
via connectors (but no electronic functions).
3 Computer interface
The ventilator can be equipped with the
board PC 1587 COMPUTER INTERFACE to provide
the interface functions described below.
If these interface functions are not needed,
the board PC 1665 COMPUTER INTERFACE DUMMY
can be mounted instead of PC 1587.
The PC 1665-function is described in section
3A COMPUTER INTERFACE DUMMY that can be
found after section 3.9 LED INDICATORS.
The board PC 1587 COMPUTER INTERFACE was
replaced during the mandatory upgrades:
– SV 300, Upgrade 1995-09 (US market)
– SV 300, Upgrade 1995-10 (Rest of World)
As the board PC 1587D was included in
these mandatory upgrades, all SV 300/300A
must be equipped with PC 1587D (or higher).
The main block COMPUTER INTERFACE consists
of the board PC 1587 COMPUTER INTERFACE
which includes one microprocessor and a
COM-PROM. The COM-PROM is divided in two
PROM modules
There are five connectors (N80 – N84) on
PC 1587.
Only accessories, supplies or auxiliary
equipment listed in Siemens-Elema catalogs
(”Products and accessories” Order No.
90 34 562 E323E and ”Spare and exchange
parts” Order No. 90 34 570 E323E) must be
connected to or used in conjunction with the
ventilator.
Warning: Use of accessories and auxiliary
equipment other than those specified in
these catalogs may degrade safety and
performance of the ventilator.
N80
N81
N82
N83
N84
300-A15X