American Power Conversion MX28B200 user manual Rectifiers, Pscu

Rated Output Power (per Rectifier)	2800 W (45ºC)
Efficiency	91% Typical

6.3. Controls and Indicators

Rectifiers

Input Healthy LED	AC power present.
Output Healthy LED	DC output voltage within operating range (-39.5
	to –59.5 VDC).
Output Current LED	On when rectifier is supplying current.
Thermal Control LED	On when one of three internal sensors is above
	90ºC
Current Limit LED	On when rectifier is in current limit.
	.
Overvolts LED	On when rectifier is above 57 Volts. (Must be
	powered down to reset)
Overtemp LED	On when one of three internal sensors is above
	130ºC. Power Conversion is inhibited.
Fan fail LED	On when Fan is running too slow.
Standby LED	On when the unit is in the standby mode. No
	output power is produced. Rectifier is still
	active
+V Test Point	Rectifier Voltage can be measured with a
	voltmeter between COM and +V.
COM Test Point	Negative reference for both +V and +I
+I Test Point	Rectifier Current can be measured with a
	voltmeter between COM and +I.
Float / Boost/Equalize Switch	Used to Control voltage on systems without a
	PSCU
Float Trim Pot	The float pot is used to adjust the default float
Page 48	MX28B200/400 –48 VDC User’s Manual (990-9133)