A4RM24150 5/98 REV A

Page 3

Output Specifications

Rectifier Failure Alarm (RFA)

Problems occurring because of an unacceptable relation-

ship between the output power and load conditions will

cause a Rectifier Failure Alarm (RFA). This alarm consists

of a red LED and a flashing green OK LED. Conditions

which may lead to an RFA are:

Low Current - Output current has decreased to below

5% of its rated value.

Unit Shutdown - Any shutdown occurrence due to

overvoltage, external shutdown command, unacceptable

ambient temperature conditions or low AC input voltage.

Fan Malfunction - The fan has stopped operating or is

not providing the airflow needed to cool the unit.

Over Temperature - The ambient temperature has

exceeded 50°C.

High Voltage Shutdown (HVSD)

When internal shutdown occurs, the unit may be re-

started by a local switch or by a remote signal.

Surge Protection

The unit will withstand lightning and input surges of

6000V/3000A.

Under Voltage Protection

operation is automatically inhibited.

PROTECTION, ALARM AND CONTROL SYSTEMS

Parameter

Conditions

Min

Typ

Max

Units

Voltage Adjustment Range

float voltage

24

28

equalize voltage

24

30

Regulation

0-100% load within

specified input voltage and frequency range

± 0.5

%

Load Current

within a 10 - 100% rating

±10

%

Hold-Up Time

nominal AC line

>16

mS

Filtering

Voice band

<32

dBrnc

Wide band noise

@ 20MHz

<350

mV p-p

ENVIRONMENTAL

Temperature

Operating

-0

+50

°C

+32

122

°F

Storage

-50

+85

°C

-58

185

°F

Humidity

non-condensing

0

95

%

Altitude

0

7000

ft.

0

2133

m

Heat Dissipation

@27V

2440

Btu/hr

Audible Noise

5 ft. from any vertical surface

<55

dBa