GE Data Sheet
CP2500AC54TE CPL Hi
h Efficienc
Rectifier
Input: 100-120/200-277 Vac; Default Output: ±54 Vdc @ 2500W; 5 Vdc @ 4W
June 18, 2014 ©2012 General Electric Company. All rights reserved. Page 5
Service Life 10 Years 25°C ambient, full load excluding fans.
Status and Control
The Rectifier provides two means for monitor/control: analog or
I2C.
Details of analog controls are provided in this data sheet under
Signal Definitions. GE Energy will provide separate application
notes on the I2C protocol for users to interface to the CPL
RECTIFIERs. Contact your local GE Energy representative for
details.
Hot Plug
When rapidly extracting and reinserting modules care should
be taken to allow for discharging the internal bias supply so
that a predictable restart could be achieved. The way to ensure
that the circuit sufficiently discharges is to observe the spinning
of the fans after an extraction. The unit should not be
reinserted until the fans stop spinning.
Without bleeding down internal bias the module may
remember its last assigned address and may not configure
itself properly if reinserted into another slot.
Control Definitions
All signals are referenced to Logic_GRD unless otherwise noted.
See the Signal Definitions Table at the end of this document for
further description of all the signals.
Input Signals
Margining: Set point of the Rectifier can be changed via this
input pin. Programming can be either a voltage source or a
resistance divider. The margining pin is connected to 3.3Vdc via
a 10k resistor inside the Rectifier. See graphs below.
An open circuit on this pin reverts the voltage level back to the
original setting.
Software commanded margining overrides the hardware set
point indefinitely or until the default setting is reinstated for
example if input power and bias power have been removed
from the module.
Module Present Signal: This signal has dual functionality. It can be
used to alert the system when a module is inserted. A 500 resistor
is present in series between this signal and Logic_GRD. An external
pull-up should not raise the voltage on the pin above 0.25Vdc.
Above 1Vdc, the write_protect feature of the EEPROM is enabled.
Protocol Select: Establishes the communications mode of the
rectifier, between analog/I2C and RS485 modes. For RS485, connect
10k pull-down resistor to 54_OUT(-DC).
Enable: On/Off control when I2C communications are utilized as
configured by the Protocol pin. This pin must be pulled low to turn
ON the rectifier. The rectifier will turn OFF if either the Enable or the
ON/OFF pin is released. This signal is referenced to Logic_GRD.
ON/OFF: This is a short pin utilized for hot-plug applications to
ensure that the rectifier turns OFF before the power pins are
disengaged. It also ensures that the rectifier turns ON only after the
power pins have been engaged. Must be connected to V_OUT (-DC).
Output Signals
Power_OK: This signal is HI when the main output is present and
goes LO when the main output is not present.
I_limit: This signal is HI when the main output is not in current limit
and goes LO when current limit has activated.
Alert #: I2C interrupt signal.
Fault: This signal goes LO for any failure that requires Rectifier
replacement. Some of these faults may be due to:
Fan failure
Over-temperature condition
Over-temperature shutdown
Over-voltage shutdown
Internal Rectifier Fault
Output
Setpoint
(Vdc)
-58
-46
0.1
3.3Vdc
10k
Vcontrol
Vprogram
-44
0