Data sheet, Electrical specifications (continued) – GE Industrial Solutions CP2000DC54-PE User Manual

Page 3

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GE

Data Sheet

CP2000DC54-PE series dc-dc converter

Input: -40Vdc to -72Vdc; Outputs: ±54Vdc @ 2000W; 5Vdc @ 4W

August 20, 2013

©2013 General Electric Company. All rights reserved.

Page 3

Electrical Specifications (continued)

Output (continued)

Parameter Min

Typ

Max

Units

Notes

Turn-On

Delay
Rise Time

2

Overshoot

5

500



5

s

ms

%

Monotonic Turn_On after detection of valid DC input voltage.
Measured from 30% to 100% of Vnom.

Restart Shutdown Delay

20

S

Shutdown is delayed during a re-start in order to guarantee restart

of multiple paralleled modules.

Load Step Response

I
V

Response Time


2.0

2

50

%FL

Vdc

ms

I/t slew rate 1A/µs.

Settling time to within regulation requirements.

Overload

3

Current Limit

Shutdown

38.9

43

39

Adc

Vdc


Fold-down.

Default state – hiccup mode

System Start-up

A 20 second shutdown delay is implemented to allow modules to be plugged in one at a time. During this time
fold-down occurs but the module will not shut down below 39Vdc.

Over-voltage

Delayed
Instantaneous
Latchoff

60
65

Vdc
Vdc

200msec delayed shutdown implemented.
Latched shutdown without hiccup.

Three restart attempts are implemented within a one minute window prior to a latched shutdown when Vout

< 65Vdc. Beyond 1 minute the counter restarts

Over-temperature

Warning


Shutdown


Auto-recoverable


20

5


°C


°C


Implemented prior to commencement of an OT shutdown

Below the maximum rating of the device being protected

Temperature hysteresis of approximately 10°C provided between shutdown and restart.

Auxiliary Output

Parameter Min

Typ

Max

Units

Notes

ON when the input voltage is

-26

-72

Vdc

Output Voltage Setpoint

5.2

Vdc

Isolated from the main output to meet POE requirements.
50mA dedicated for powering adjacent PEMs during a fault.

700mA available for external use.

Output Current

0.005

0.75

A

Overall Regulation

-5

+5

%

Ripple and Noise

50

100

25

mVpk-pk

mVrms

20MHz bandwidth. Measured across a 1F tantalum and a
0.1F ceramic capacitor

Over-voltage Clamp

7

Vdc

Over-current Limit

110

175

%FL

Isolation from the main output

2250

Vdc

Isolation from frame ground

50

Vdc

A

1MΩ noise suppression resistor is connected between

Logic_GRD and Frame_GRD.

2

Below -5C the rise time is approximately 5 minutes to protect bulk capacitors in the unit

3

Hiccup performance attempts automatic recovery from an overload shutdown with approximately a 90% off-time duty cycle. The duty cycle

varies periodically in order to guarantee multi-module recovery synchronization. Latchoff can be chosen via software instead of the default

hiccup. Recovery from a latchoff requires ENABLING, or software commanding OFF followed by an ON after a 2 second delay.

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