Service manual

46 Siemens-Elema AB E382 E380E 061 01 03 01
Description of functions Servo Ventilator 300/300A
2
4.5.1 Supply voltage
PMA = Internal supply voltages.
Reference values as shown in the following Alarm table.
Alarm table:
1
The signal POWER_FAILURE.H will activate functions to open the SAFETY VALVE and EXPIRATORY
VALVE
and close the INSPIRATORY VALVES.
2
If the +5 V alarm limit is exceeded; only the Backup alarm system, generating an inter-
mittent audible alarm, is activated. ”Alarms and messages text” and/or flashing LEDs will
not be given on the front panel. All front panel LEDs, indications and displays, will be
turned off.
If any of the +15 V, -15 V or +24 V alarm limits are exceeded; the normal (digital control)
alarm (see 4.1.8 Technical, PMA 5) and the Backup alarm system, generating an inter-
mittent audible alarm, are activated. ”Alarms and messages text” and/or flashing LEDs
will be given on the front panel.
Restart the ventilator.
4.5.2 Airway pressure
PMA: P
I
= Insp. pressure; signal from main block 12 INSPIRATORY PRESSURE),
P
E
= Exp. pressure; signal from main block 13 EXPIRATORY PRESSURE).
Reference value P
max
= Preset Upper pressure limit (on Front panel).
Alarm table:
noitidnocmralAkrameR
P
I
P>
xam
Hmc6+
2
O ro
P
E
P>
xam
Hmc6+
2
O
foynaybdesuacneposyatsevlavytefaSehtsagnolsA
setarenegmetsysmralapukcaBeht,snoitidnoceseht
.mralaelbiduasuounitnoc
ylppuS
egatlov
timilmralAnoitidnocmralAkrameR
V5+
V51+
V51–
V42+
± %5
± %01
± %01
V5.81<,V33>
sitimilmralaynafI
langiseht,dedeecxe
REWOP _ ERULIAF . H si
.detavitca
langisehtfI
REWOP _ ERULIAF . H si
eromgniruddetavitcayltnatsnoc
spotsrotalitneveht,s1naht
gnitarepo
1
detavitcasimraladna
2
.