CAR1248TN_14 Datasheet, PDF (6/8 Pages) Lineage Power Corporation – Universal input with PFC Constant power characteristic 3 front panel LEDs: 1-input;2-output; 3 - fault

GE
CAR1248TN series rectifier
Input: 90Vac to 264Vac; Output: -54Vdc @ 1200W
Vprog [06]; Reads back the hardware configured analog
voltage program value via i2c.
The value of Vprog can range from 2.1V to 2.8V.
Example: set the output to 44Vdc. From the equation
determine that Vprog = 2.2. The 10bit D/A is set for the range
of 0 – 5Vdc, therefore with a resolution of 1024 bits each bit is
0.00488V. So the corresponding value to enter is 2.2/0.00488 =
451 decimal. This corresponds to 01C3h. The data should be
sent across the bus as LSB [C3] followed by MSB [01].
OT trip[07] and OT recover[08]; Configures the OT shutdown
and recovery levels. The default values are;
OT trip: 120C corresponds to 1.03/0.005 = D3h
OT recover: 110C that corresponds to 1.26/0.00488 = 0102h
Example: Change the recovery temperature to 100C. In the
look up table above the corresponding level is 1.54. Divide by
the conversion ration, 1.54/0.00488 = 315 dec. Converting to
its hex equivalent yields 013B hex. The data should be sent
across the bus as LSB [3B] followed by MSB [01].
DC_OK_HI[09] and DC_OK_LO[0A]: Changes the DC_OK signal
comparator level. The default values are;
DC_OK_HI: 0221h, corresponding to 55.6V
DC_OK_LO: 0201h, corresponding to 52.4V
Example: Change the upper level of comparison to 55V.
Determine the corresponding register value setting; 55/0.102
= 539dec. This is equivalent to 021Bh. The data should be
sent across the bus as LSB [1B] followed by MSB [02].
STATUS [0B]: All read backs are two bytes and so read back
two bytes but ignore the MSB.
Firmware [0C]: Reads back the latest firmware revision.
MCUeeprom [0D – 7C]: 125 bytes of information may be
stored in the EEPROM section of the micro controller starting
from register location 0Dh. Each byte of data needs to be
stored into its specific register location, one byte at a time.
External EEPROM
A separate EEPROM, with its own i2c address and with
write_protect capability, provides 128 bytes of memory. This is
a standard i2c compliant generic EEPROM with a single byte
for its memory location. Standard i2c command structure
applies.
The following FRU_ID information is stored in this EEPROM
Start
Location
00h
07h
08h
0Ch
0Dh
1Eh
1Fh
Length
7
1
4
1
17
1
1
Value
20h
20h
20h
Description
Serial number, ascii
space
Date code [YYWW] ascii
space
Code CAR1248TNBXXZ01A ascii
space
Revision
LEDs
Three LEDs are located on the front faceplate. The AC_OK LED
provides visual indication of the INPUT signal function. When
the LED is ON GREEN the power supply input is within normal
design limits.
When the DC_OK LED is GREEN the DC output is present.
When the FAULT_LED is RED then a fault condition exists and
the power supply may not provide output power. The table
below further defines these states:
Alarm Table
LED Indicator
Monitoring Signals
Test Condition
AC OK
DC OK
FAULT
FAULT
DC OK
AC OK
1 Normal Operation
Green
Green
OFF
High
High
High
2 Low or NO INPUT
OFF
OFF
OFF
High
Low
Low
3 OVP
Green
OFF
Red
Low
Low
High
4 Over Current
Green
OFF
Red
High
Low
High
5 Over Temp Fault
Green
OFF
Red
Low
Low
High
Note: Test condition #2 has 2 modules working in parallel. One module is running and the other has no AC.
TEMP OK
High
High
High
High
Low
November 20, 2012
©2012 General Electric Company. All rights reserved.
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