GE Industrial Solutions CAR2548TN series - Manual (Page 4)

GE Energy
CAR2548TN series rectifier
Input: 90Vac to 264Vac; Output: -54 Vdc @ 2500W; 3.3Vdc or 5 Vdc @ 1A
April 23, 2013 ©2012 General Electric Company. All rights reserved. Page 4
EMC
Parameter Criteria Standard Level Test
AC input Conducted emissions EN55022, FCC Docket 20780 part 15, subpart J A 0.15 – 30MHz
Radiated emissions** EN55022 A 30 – 10000MHz
Voltage dips EN61000-4-11 A -30%, 10ms
B -60%, 100ms
B -100%, 5sec
Voltage surge EN61000-4-5 A 4kV, 1.2/50µs, common mode
A 2kV, 1.2/50µs, differential mode
immunity Fast transients EN61000-4-4 B 5/50ns, 2kV (common mode)
Enclosure immunity Conducted RF fields EN61000-4-6 A 130dBµV, 0.15-80MHz, 80% AM
Radiated RF fields EN61000-4-3 A 10V/m, 80-1000MHz, 80% AM
ENV 50140 A
ESD EN61000-4-2 B 4kV contact, 8kV air
** Radiated emissions compliance is contingent upon the final system configuration.
Status and Control
Some parameters have two means of monitor/control; A
signal level that represents the analog value being
measured or controlled, or, reading/writing via the i
2 C
port the measured value or the control command.
Unless otherwise noted, control via the signals pins is
‘active’ so long that a firmware based command is not
initiated. Once firmware initiates a command that is also
represented on a signal pin, the firmware takes over and
replaces the hardware based control signal. Firmware
control is maintained until bias power to the processor is
interrupted. Once bias power is removed the processor
resets and the analog signal pin control is ‘active’ until
firmware takes over control.
Details of analog controls are provided in this data sheet
under Signal Definitions. GE Energy will provide separate
application notes on the I2C protocol. Contact your local
GE Energy representative for details.
Signal Definitions
All signals and outputs are referenced to Output return.
These include ‘Vstb return’ and ‘Signal return’.
Input Signals
Voltage programming (Vprog): An analog voltage on this
signal can vary the output voltage from -45Vdc to
-57Vdc. The equation of this signal is:
Vout = 44.3 + (Vprog * 3.33) where Vprog = 0.2 to
3.8Vdc
Load share (Ishare): This is a single wire analog signal
that is generated and acted upon automatically by power
supplies connected in parallel. The Ishare pins should be
tied together for power supplies if active current share
among the power supplies is desired. No resistors or
capacitors should get connected to this pin.
Remote ON/OFF: Controls the main -54Vdc output
voltage presence . This is an open collector, TTL level
control signal. This signal needs to be pulled HI
externally through a resistor. Maximum collector voltage
is 12Vdc and the maximum sink current is 1mA. A Logic
1 (TTL HI level) turns ON the -54Vdc output, while a
Logic 0 (TTL LO level) turns OFF the
-54Vdc output.
A turn OFF command either through this signal (Remote
ON/OFF) or firmware commanded would turn OFF the
12V output.
Enable: This is a short signal pin that controls the
presence of the -54Vdc . This pin should be connected to
‘output return’ on the system side of the output
connector. The purpose of this pin is to ensure that the
output turns ON after engagement of the power blades
and turns OFF prior to disengagement of the power
blades.
Write protect (WP): This signal protects the contents of
the EEPROM from accidental over writing. When left
open the EEPROM is write protected. A LO (TTL
compatible) permits writing to the EEPROM. This signal
is pulled HI internally by the power supply.
Output signals
Output current monitor (Imon): A voltage level
proportional to the delivered output current is present on
this pin. The signal level is 0.2V per amp ± 0.25V.
AC OK: A TTL compatible status signal representing
whether the input voltage is within the anticipated range.
This signal needs to be pulled HI externally through a
resistor. Maximum sink current ≤ 20mA and the max