Ventilator Control and Drive Theory of Operation
1 - 28 0070-10-0683 AS3000™ Service Manual
1.5.3 Battery
The sealed lead-acid battery is maintenance free, and has a maximum recharge time of 8
hours when fully discharged. The run time is at least 45 minutes with a fully charged battery.
To prevent unintended loss of battery operation, the recommended replacement period is
every 3 years.
1.5.4 Power Supply
The power supply provides power to the machine and relevant controls.
8. APE Auxiliary Power Enable
9. CHAR_SIGNAL Charge Status, No connection
10. /MUTE Mute, No connection
Power Switch, J5
PIN NAME FUNCTION
1. GND Ground
2. NC No Connection
3. PWON Power On Enable, Low active
Test Point definitions
DESIGNATOR NAME FUNCTION
T1 24V 24V DC Input
T2 PWBUS Power Bus
T3 A12V Analogue 12V
T4 P12V Power 12V
T5 +5V Logic Power 5V
T6 5V/4.8V Power 5V/4.8V
T7 BAT+ Battery Input +
T8 30V 30V for charger
T9 PWAUX Power Auxiliary
T10 CHARGE Charge Status
T11 5VAUX 5V Auxiliary
T12 VRs Charger Feedback
Led Designation
DESIGNATOR LED COLOR STATUS FUNCTION
DS1 GREEN 24V DC available
DS2 GREEN Power Bus On
DS3 GREEN Charge
Power Control, J2 (Continued)
PIN NAME FUNCTION
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