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Controls and indicators – American Power Conversion MX28B200 User Manual

Page 54

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Page 48 MX28B200/400 –48 VDC User’s Manual (990-9133)

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