GE Industrial Solutions Naos Raptor 50A - Manual (Page 9)

Data Sheet
October 31, 2011 Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
LINEAGE POWER 9
performance of the module can be achieved by using
the Tunable Loop feature described later in this data
sheet.
Safety Considerations
For safety agency approval the power module must
be installed in compliance with the spacing and
separation requirements of the end-use safety agency
standards, i.e., UL 60950-1, CSA C22.2 No. 60950-1-
03, and VDE 0850:2001-12 (EN60950-1) Licensed.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power
module has extra-low voltage (ELV) outputs when all
inputs are ELV.
The input to these units is to be provided with a fast-
acting fuse with a maximum rating of 30 A in the
positive input lead
.
Feature Descriptions
Enable (Remote On/Off)
The Naos Raptor 50A power modules feature an
Enable with positive logic pin for remote On/Off
operation. If not using the Enable pin, leave the pin
open (the module will be ON, except for the -49 option
and the -432 modules where leaving the pin open will
cause the module to remain OFF). The Enable signal
(V
Enable
) is referenced to ground.
During a Logic High on the Enable pin, the module
remains ON. During Logic-Low, the module is turned
OFF.
100K
GND
ENABLE
ON/OFF
5V MODULE
2K
47K
2.2K
47K
2K
2.2K
Figure 23. Remote On/Off Implementation. The
100K resistor is absent in the -49 option and -432
modules.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current
limiting continuously. At the point of current-limit
inception, the unit enters hiccup mode. The unit
operates normally once the output current is brought
back into its specified range. The typical average
output current during hiccup is 10% of I
o,max
.