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Appendix K: Power Supply Test Procedure
For 1.25A FAST Power Supply
Equipment:
AC Voltmeter, DC voltmeter, ammeter, variable voltage AC supply, power resistor (18 ohm 50 W for 1.25 A charging brick).
Method
1.
Plug power supply into variable voltage AC supply with AC voltmeter connected across AC supply. Connect resistive load across output of power supply,
with DC ammeter connected in series to measure current supplied to load. Connect DC voltmeter across resistive load and ammeter, so ammeter voltage drop
is included in voltage reading.
2.
Set AC supply voltage for 90 VAC.
Failure if
DC output voltage < 20 VDC or > 24 VDC; DC output current <1.0 A or > 1.45 A.
3.
Set AC supply voltage for 240 VAC.
Failure if
DC output voltage < 20 VDC or > 24 VDC; DC output current <1.0 A or > 1.45 A.
4.
Disconnect power supply from AC supply. Set AC supply voltage for 60 VAC. Reconnect power supply to AC supply.
Failure if
output current isn’t zero (power supply should shut down)
For 600mA SLOW Power Supply
Equipment:
AC Voltmeter, DC voltmeter, ammeter, variable voltage AC supply, power resistor (37 ohm 25 W for 600 mA power supply).
Method
1.
Plug power supply into variable voltage AC supply with AC voltmeter connected across AC supply. Connect resistive load across output of power supply,
with DC ammeter connected in series to measure current supplied to load. Connect DC voltmeter across resistive load and ammeter, so ammeter voltage drop
is included in voltage reading.
2.
Set AC supply voltage for 90 VAC.
Failure if
DC output voltage < 20 VDC or > 24 VDC; DC output current <1.0 A or > 1.45 A.
3.
Set AC supply voltage for 240 VAC.
Failure if
DC output voltage < 20 VDC or > 24 VDC; DC output current <1.0 A or > 1.45 A.
4.
Disconnect power supply from AC supply. Set AC supply voltage for 60 VAC. Reconnect power supply to AC supply.
Failure if
output current isn’t zero (power supply should shut down)
Summary of Contents for Roomba Discovery
Page 32: ...32 Charging Accessories Battery Power Supply Home Base Rapid Charger...
Page 41: ...41 Roomba Accessories Virtual Wall Remote Filters Bristle Brush Flexible Brush Side Brush...
Page 47: ...47 Appendices...
Page 82: ...82 Appendix N User Interface User Interface POWER Light...
Page 83: ...83 User Interface STATUS Light User Interface DIRT Detect...
