CP2000AC54PE datasheet(5/8 Pages) LINEAGEPOWER

5 / 8 page

Data Sheet

Compact Power Line

CP2000AC54 Front-End Power Supply

Lineage Power

Status and Control

The rectifier provides three means for

monitor/control: analog, PMBus compliant I

2C, or

RS485 for interfacing to Lineage Power controllers

or battery plants.

Details of analog controls are provided in this data

sheet under Signal Definitions. Lineage Power will

provide separate application notes on PMBus

protocol for users to interface to the CPL rectifiers.

Contact your local Lineage Power 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.

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:

Setpoint 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 10kΩ

resistor inside the rectifier. See graphs below.

An open circuit on this pin reverts the voltage level

back to the original setting.

Module Present Signal:

This signal has dual

functionality. It can be used to alert the system

when a module is inserted. Has a 500

Ω resistor in

series between this signal and Logic GRD. An

external pull-up should not raise the voltage on the

pin above 0.25Vdc. If raised the pin is raised to

5Vdc the write_protect feature of the EEPROM is

enabled.

Protocol Select:

Establishes the communications

mode of the power supply, between analog/I

2C and

RS485 modes. For RS485, connect 750 – 3.92kΩ

pull-down resistor to 54_OUT(-DC).

Enable:

On/Off control when either PMBus

communications or analog functions are utilized as

configured by the Protocol pin. This pin must be

pulled low to turn ON the main output of the power

supply. The power supply will turn OFF if either the

Enable

or the ON/OFF pin is released. The Enable

function does not work with the RS-485 protocol.

This signal is referenced to Logic_GRD.

ON/OFF:

This is a short pin utilized for hot-plug

applications to ensure that the power supply turns

OFF

before the power pins are disengaged. It also

ensures that the power supply turns ON only after

the power pins have been engaged. Must be

connected to 54_OUT (-DC).

Output Signals

Alert #:

PMBus 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

Power Capacity:

A HI on this pin indicates rectifier

configured for 2000W operation; a LO indicates

rectifier configured for 1200W operation.

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