Service manual

34 Siemens-Elema AB E382 E380E 061 01 03 01
Description of functions Servo Ventilator 300/300A
2
4 Monitoring
This main block consists of the board
PC 1608 MONITORING including its PC 1588
MICROPROCESSOR MODULE and the
4.7 LOUDSPEAKER.
New versions of PC 1608 MONITORING and
MON-PROM was introduced in production
during 1996 and also as an optional upgrade
on delivered units. The upgrade was called
”SV 300, ALARM SYSTEM ENHANCEMENT KIT 96 -05”.
The new versions was:
– PC 1608E
– MON-PROM V6.00
As the upgrade was optional and not
mandatory, a number of not upgraded
SV 300 are equipped with MON-PROM V5.01
(and PC 1608A, -B, -C or -D). These units
must be equipped with a FAILURE ALARM BOX.
Note – PC 1608E is backwards compatible
and can be equipped with MON-PROM V5.01.
The FAILURE ALARM BOX must be used also on
these units.
The alarm functions of the FAILURE ALARM BOX
are integrated on MON-PROM V6.00/PC 1608E
and the FAILURE ALARM BOX is not used on
SV 300 equipped with MON-PROM V6.00/
PC 1608E (or higher).
For more information about PROM, PC board
and Operating Manual versions, see chapter
”6. Product change history”.
4.1 Monitor/Alarm CPU including
MON-PROM functions
This block includes the board PC 1588 with
a MON-PROM. Some details of the PC 1588
are mentioned in section Microprocessor
module PC 1588 in this chapter. The MON-
PROM functions include the (program control)
digital monitoring of certain parameters and
the activation of alarm functions:
• Front panel indications via the block
2.9 MONITOR DISPLAY
• Audible indications via the block
4.3 SOUND & ALARM CONTROL.
In the following description (4.1.1 – 4.1.8)
alarms are mentioned in groups, each group
associated with corresponding Alarm field
within the Front panel field ”Alarms and
Messages”.
For each Alarm field this description of the
normal (digital control) alarm contains:
• Alarms and Messages - Alarm field
name
• Parameter monitored for alarm, PMA
and corresponding Reference value
• Alarm table
containing conditions for alarm.