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Installation ManualInstallation Manual

RM848/RM648 48V RectifierRM848/RM648 48V Rectifier

Revision 1.2Revision 1.2

Manufactured by Enatel LtdManufactured by Enatel Ltd

PO Box 22-333PO Box 22-333

321 Tuam St321 Tuam St

ChristchurchChristchurch

New ZealandNew Zealand

Ph: +64 3 366 4550Ph: +64 3 366 4550

Fax: +64 3 366 0884Fax: +64 3 366 0884

EmailEmail

sales@enatel.netsales@enatel.net

http://www.enatel.nethttp://www.enatel.net

Principles Principles

of of

Operation .............................................................................................................. Operation ..............................................................................................................

1.11.1

Introduction .........................................................................................Introduction .........................................................................................

.................................. ..................................

1.21.2

Indicators ..................................................................................................................Indicators ..................................................................................................................

............ ............

1.31.3

Power and Power and

Current Current

Limit ...................................................................................................... Limit ......................................................................................................

1.41.4

Output Over-Voltage Shut DownOutput Over-Voltage Shut Down

......................................................................................................................................

....................... .......................

1.51.5

Input Input

Over/Under Over/Under

Voltage Voltage

Shut Shut

Down Down

......................................................................................................................

....................... .......................

1.61.6

Rectifier Soft Rectifier Soft

Start and Start and

Inrush Inrush

Current Current

....................................................................................................................

....................... .......................

1.71.7

Over TOver T

emperature emperature

Turn Turn

Down/Shutdown ..............................Down/Shutdown ..............................

.............................................. ..............................................

1.81.8

Reverse Reverse

Polarity Polarity

Protection Protection

................................................................................................................................

.................................. 5.................................. 5

1.91.9

Active Active

Load Load

Share .................................Share .................................

............................................................................................................................................

......... 5......... 5

1.101.10

Fan Fan

Cooling .............................................................................Cooling .............................................................................

............................................. 5............................................. 5

1.111.11

Serial Alarm Serial Alarm

and and

Control IControl I

nterface ........nterface ........

......................................................................................................................................

............ ............

1.11.11.11.1

Voltage Voltage

Control ...................................................Control ...................................................

......................................................... 5......................................................... 5

1.11.21.11.2

Rectifier Alarm Rectifier Alarm

states .................................................................................................. states ..................................................................................................

1.11.31.11.3

Rectifier Rectifier

Shutdown Shutdown

................................................................................................................

.............................................. ..............................................

1.121.12

Post-mate Post-mate

Connection ................Connection ................

......................................................................................................................................

....................... 6....................... 6

1.131.13

Interface Interface

- -

Rear Rear

Connector Connector

..................................................................................................................................

.................................. ..................................

Installation Installation

..............................................................................................................................

.................................................................... 7.................................................................... 7

2.12.1

General General

Warnings Warnings

......................................................................................................................................

............................................. .............................................

2.22.2

Rectifier Rectifier

Shelf ..........................................................................Shelf ..........................................................................

............................................. 7............................................. 7

2.32.3

AC Supply AC Supply

Surge Protection Surge Protection

............................................................................................................................

.................................. ..................................

2.42.4

Ventilation ...........................................................................................Ventilation ...........................................................................................

.................................. ..................................

2.52.5

Rectifier Rectifier

Addressing ....................................................................................................Addressing ....................................................................................................

......... 7......... 7

2.62.6

Commissioning the Commissioning the

Rectifier ................................................................................................ Rectifier ................................................................................................

Specifications* Specifications*

........................................................................................................................................

........................................................ 9........................................................ 9

3.13.1

AC AC

Input Input

......................................................................................................................

......................................................................................................................................

. 9. 9

3.23.2

DC DC

Output Output

........................................................................................................................................

........................................................ ........................................................

3.33.3

Environmental Environmental

..........................................................................................................................

....................................................... 10....................................................... 10

3.43.4

Mechanical Mechanical

......................................................................................................................................

...................................................... 10...................................................... 10

3.53.5

Compliances .......................................................................................Compliances .......................................................................................

................................ ................................

1010

Servicing Servicing

....................................................................................................................................

.................................................................. 11.................................................................. 11

4.14.1

Warnings Warnings

............................................................................................................................................

...................................................... 11...................................................... 11

4.24.2

Troubleshooting..................................................................................Troubleshooting..................................................................................

................................ ................................

1111

4.34.3

Fuses .............................................................................................................Fuses .............................................................................................................

..................... .....................

1111

Ventilation Ventilation

Details ...................................................Details ...................................................

.................................................................. ..................................................................

1212

Warranty Warranty

....................................................................................................................................

.................................................................. ..................................................................

1313

Rectifier Rectifier

Installation Installation

Manual Manual

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1313

1 1

Principles Principles

of of

OperationOperation

1.1 Introduction1.1 Introduction

The RM848 and low power version RM648 are telecommunications grade rectifiers with the followingThe RM848 and low power version RM648 are telecommunications grade rectifiers with the following

features:features:



Hot pluggableHot pluggable



Forced Air CooledForced Air Cooled



Thermally ProtectedThermally Protected



Power Factor CorrectedPower Factor Corrected



Wide input AC VoltageWide input AC Voltage



Constant Power Output LimitConstant Power Output Limit



Input/Output Voltage and Current ProtectedInput/Output Voltage and Current Protected



Active Load SharingActive Load Sharing



Serial alarm and control interfaceSerial alarm and control interface



Microprocessor controlledMicroprocessor controlled

1.2 Indicators1.2 Indicators

There are 3 LED indicators on the front panel indicate the operational state of the rectifier.There are 3 LED indicators on the front panel indicate the operational state of the rectifier.

AC:AC:

This gThis g

reen reen

LED iLED i

ndicates ndicates

that that

mains powmains pow

er ier i

s s

connected to connected to

the the

unit unit

and and

that the that the

primary stagprimary stag

es ofes of

the rectifier are operating.the rectifier are operating.

This This

yellow yellow

LED LED

indicates indicates

a a

Non-Urgent Non-Urgent

alarm alarm

state state

within within

the the

rectifier. rectifier.

This This

could could

be be

caused caused

byby

the following:the following:



Rectifier Rectifier

in in

output output

power/current power/current

limitlimit



Rectifier Rectifier

over over

temperaturetemperature



Fan Fan

failedfailed



Rectifier Rectifier

soft soft

startingstarting

This This

red red

LED LED

indicates indicates

an an

Urgent Urgent

alarm alarm

state state

within within

the the

rectifier. rectifier.

This This

could could

be be

caused by caused by

thethe

following:following:



Rectifier Rectifier

FailedFailed



The The

AC AC

input input

voltage voltage

is is

outside outside

the the

operating operating

range.range.



Rectifier Rectifier

shut shut

down down

due due

to to

output output

over over

voltage voltage

or or

over over

temperature.temperature.

Rectifier Rectifier

Installation Installation

Manual Manual

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1313

1.3 1.3

Power Power

and and

Current Current

LimitLimit

The rectifier automatically limits its output The rectifier automatically limits its output

as load demand reaches it maximum capacity. as load demand reaches it maximum capacity.

The figuresThe figures

below show the maximum operating envelope for the RM848 and for low power version RM648 rectifier.below show the maximum operating envelope for the RM848 and for low power version RM648 rectifier.

1.4 1.4

Output Output

Over-Voltage Over-Voltage

Shut Shut

DownDown

The rectifier will automatically shutdown if the output voltage exceeds the preset value. The Over VoltageThe rectifier will automatically shutdown if the output voltage exceeds the preset value. The Over Voltage

Shut Down point reduces by about 0.5V at full load to ensure the rectifier producing the Over Voltage ShutShut Down point reduces by about 0.5V at full load to ensure the rectifier producing the Over Voltage Shut

Down turns off first. The Over Voltage Shutdown voltage is preset in the factory but may be adjusted.Down turns off first. The Over Voltage Shutdown voltage is preset in the factory but may be adjusted.

1.5 1.5

Input Input

Over/Under Over/Under

Voltage Voltage

Shut Shut

DownDown

If the input voltage is outside the specified range, the rectifier may shut down until the voltage returnsIf the input voltage is outside the specified range, the rectifier may shut down until the voltage returns

within the specified range.within the specified range.

1.6 1.6

Rectifier Rectifier

Soft Soft

Start Start

and and

Inrush Inrush

CurrentCurrent

On start-up, the peak mains inrush current is limited to twice the maximum operating current. The outputOn start-up, the peak mains inrush current is limited to twice the maximum operating current. The output

voltage and current will rise slowvoltage and current will rise slow

ly from zero during start-up. ly from zero during start-up.

This means that the AC input This means that the AC input

power slowlypower slowly

increases over a 2 second period, providing a gentle load characteristic for any standby generators.increases over a 2 second period, providing a gentle load characteristic for any standby generators.

1.7 1.7

Over Over

Temperature Temperature

Turn Turn

Down/ShutdownDown/Shutdown

When the rectifier reaches its maximum operating temperature (internal), the rectifier will progressivelyWhen the rectifier reaches its maximum operating temperature (internal), the rectifier will progressively

reduce the output current to attempt to reduce the heat within the unit. In extreme circumstances, thereduce the output current to attempt to reduce the heat within the unit. In extreme circumstances, the

rectifier internal temperature may continue to rise even rectifier internal temperature may continue to rise even

with reduced output current. with reduced output current.

In this case theIn this case the

rectifier will totally shutdown and will restart when the internal temperature returns within limits.rectifier will totally shutdown and will restart when the internal temperature returns within limits.

The maximum ambient operating temperature range at full power is: -10 to 50 ºC.The maximum ambient operating temperature range at full power is: -10 to 50 ºC.

The rectifier will operate in ambient temperatures up to 70ºC but the rectifier will de-rate its output power toThe rectifier will operate in ambient temperatures up to 70ºC but the rectifier will de-rate its output power to

keep internal temperatures within the allowable range.keep internal temperatures within the allowable range.

OO

uu

tt

pp

uu

tt

VV

oo

ll

tt

aa

gg

ee

Output CurrentOutput Current

CurrentCurrent

LimitLimit

5858

4848

Operating envelop for RM848Operating envelop for RM848

Normal Rectifier Operating ZoneNormal Rectifier Operating Zone

16.616.6

13.813.8

Operating envelop for RM648Operating envelop for RM648

OO

uu

tt

pp

uu

tt

VV

oo

ll

tt

aa

gg

ee

5858

4848

Output CurrentOutput Current

12.512.5

10.310.3

CurrentCurrent

LimitLimit

Normal Rectifier Operating ZoneNormal Rectifier Operating Zone

Rectifier Rectifier

Installation Installation

Manual Manual

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1313

1.8 1.8

Reverse Reverse

Polarity Polarity

ProtectionProtection

A crowbar diode is fitted to the back plane for protection in this state. If batteries are connected to theA crowbar diode is fitted to the back plane for protection in this state. If batteries are connected to the

system with reverse polarity, the corresponding battery breaker will trip with no degradation to the rectifiersystem with reverse polarity, the corresponding battery breaker will trip with no degradation to the rectifier

system. The rectifier has no reverse polarity protection and relies on the protection provided by thesystem. The rectifier has no reverse polarity protection and relies on the protection provided by the

backplane.backplane.

1.9 1.9

Active Active

Load Load

ShareShare

The rectifier will actively current shaThe rectifier will actively current sha

re with other rectifiers in the same DC re with other rectifiers in the same DC

system. system.

The rectifiers areThe rectifiers are

interconnected through pin P108 of the backplane connector. interconnected through pin P108 of the backplane connector.

The hardware in each rectifier looks at thiThe hardware in each rectifier looks at thi

current share bus and adjusts its oucurrent share bus and adjusts its ou

tput current to align with other rectifiers. tput current to align with other rectifiers.

In addition to this control, theIn addition to this control, the

monitor can compare rectifier output currents and adjust individual monitor can compare rectifier output currents and adjust individual

rectifiers to achieve current share. rectifiers to achieve current share.

TheThe

rectifier current share bus is generally used within one rack or rectifiers and the monitor control is used torectifier current share bus is generally used within one rack or rectifiers and the monitor control is used to

make separate racks share with each other.make separate racks share with each other.

1.10 1.10

Fan Fan

CoolingCooling

The rectifier constantly monitors its internal temperature, ambient temperature and output current, thenThe rectifier constantly monitors its internal temperature, ambient temperature and output current, then

adjusts fan speed to ensure continued operation. adjusts fan speed to ensure continued operation.

This control of fan speed ensures that This control of fan speed ensures that

rectifier acousticrectifier acoustic

noise and dust accumulation are minimized.noise and dust accumulation are minimized.

1.11 1.11

Serial Serial

Alarm Alarm

and and

Control Control

InterfaceInterface

The rectifier, when installed in a The rectifier, when installed in a

PSX rectifier shelf, is controlled via the serial PSX rectifier shelf, is controlled via the serial

interface by the systeminterface by the system

monitor. monitor.

The system monitor can set up The system monitor can set up

control parameters and receive alarm information via thiscontrol parameters and receive alarm information via this

interface.interface.

If this interface is disconnected or fails for some reason the rectifier will operate with the parameters lastIf this interface is disconnected or fails for some reason the rectifier will operate with the parameters last

sent from the monitor. sent from the monitor.

Current share will Current share will

revert to the rectifier revert to the rectifier

current share bus.current share bus.

1.11.1 Voltage Control1.11.1 Voltage Control

The rectifier voltages are set by the The rectifier voltages are set by the

system monitor via the serial communications bus. system monitor via the serial communications bus.

The rectifierThe rectifier

voltage can be set to any voltage can be set to any

value between 43V and 58V. value between 43V and 58V.

The monitor operates in a number of modes thThe monitor operates in a number of modes th

atat

will affect the rectifier voltage setting.will affect the rectifier voltage setting.

Float Voltage Mode (AVC Off)Float Voltage Mode (AVC Off)

The monitor sets the float voltage to its target level at start up, and then resends this same level atThe monitor sets the float voltage to its target level at start up, and then resends this same level at

regular intervals regular intervals

thereafter. thereafter.

The voltage The voltage

control is control is

open loop.open loop.

Float Voltage Mode (AVC On)Float Voltage Mode (AVC On)

The monitor sets the system voltage to its target float voltage, then monitors the system voltageThe monitor sets the system voltage to its target float voltage, then monitors the system voltage

and adjusts rectifier voltages to maintain the system voltage at the desired float voltage.and adjusts rectifier voltages to maintain the system voltage at the desired float voltage.

Equalise Voltage ModeEqualise Voltage Mode

The monitor sets the system voltage to an elevated level (e.g. 56V) for a fixed period, and thenThe monitor sets the system voltage to an elevated level (e.g. 56V) for a fixed period, and then

resets the system voltage to the float voltage setting.resets the system voltage to the float voltage setting.

Fast Charge ModeFast Charge Mode

The monitor sets the system voltage The monitor sets the system voltage

to an elevated level after a battery to an elevated level after a battery

discharge. discharge.

This keeps theThis keeps the

rectifiers in current limit for a rectifiers in current limit for a

longer period, leading to a faster battery recharge. longer period, leading to a faster battery recharge.

When the batteryWhen the battery

is recharged the monitor resets the system voltage to the float voltage level.is recharged the monitor resets the system voltage to the float voltage level.

1.11.2 1.11.2

Rectifier ARectifier A

larm stateslarm states

The rectifier will report the following states to the monitor via the serial communications:The rectifier will report the following states to the monitor via the serial communications:

AC FailAC Fail

The The

AC AC

supply supply

is is

not not

present present

at at

the the

rectifier.rectifier.

Rectifier FailRectifier Fail

The The

rectifier rectifier

is is

not not

functioning. This functioning. This

could could

be be

due due

to to

high high

output output

voltage, voltage,

AC AC

failurefailure

or a fault with the rectifier internally.or a fault with the rectifier internally.

Over TemperatureOver Temperature

The internal The internal

temperature of temperature of

the rectifier the rectifier

is too is too

high and high and

the rectifier the rectifier

has begun has begun

to limitto limit

its output to control this temperature.its output to control this temperature.

Fan FailFan Fail

One One

or or

more more

of of

the the

fans fans

has has

ceased ceased

to to

work.work.

Current LimitCurrent Limit

The The

rectifier rectifier

output output

has has

reached reached

maximum maximum

and and

the the

output output

current current

is is

being being

limited.limited.

ShutdownShutdown

The The

rectifier rectifier

has has

been been

shutdown shutdown

by by

the the

monitor. It monitor. It

will will

restart restart

again again

in in

5 5

minutesminutes

unless the shutdown instruction is repeated.unless the shutdown instruction is repeated.

Rectifier Rectifier

Installation Installation

Manual Manual

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1313

EEPROM FaultEEPROM Fault

The The

rectifier rectifier

microprocessor microprocessor

has has

encountered encountered

an an

error error

while while

reading reading

from from

EEPROM.EEPROM.

Soft StartSoft Start

The The

rectifier rectifier

has has

just just

turned turned

on on

and and

is is

slowly slowly

increasing increasing

its its

output.output.

1.11.3 Rectifier Shutdown1.11.3 Rectifier Shutdown

The rectifier can be remotely forced to shutdown, via the serial communications, by the system monitorThe rectifier can be remotely forced to shutdown, via the serial communications, by the system monitor

and/or remote supervisory software. and/or remote supervisory software.

The rectifier will The rectifier will

shut down for shut down for

5 minutes then 5 minutes then

restart. restart.

If a furtherIf a further

shutdown signal is received by the rectifier before the 5 minutes is up, the timer will reset to 5 minutes.shutdown signal is received by the rectifier before the 5 minutes is up, the timer will reset to 5 minutes.

Hence, if a rectifier is to be kept shutdown a shutdown signal must be sent to it at regular intervals.Hence, if a rectifier is to be kept shutdown a shutdown signal must be sent to it at regular intervals.

1.12 1.12

Post-mate Post-mate

ConnectionConnection

The rectifier is The rectifier is

“hot plug” capable. “hot plug” capable.

This is achieved This is achieved

by having onby having on

e pin on the rear connector that matese pin on the rear connector that mates

after the other pins. after the other pins.

This pin must be connected to negative This pin must be connected to negative

bus volts and the rectifier will bus volts and the rectifier will

not start untilnot start until

this pin engages. this pin engages.

If a rectifier will not start, enIf a rectifier will not start, en

sure the rectifier is fully engaged in the sure the rectifier is fully engaged in the

Goldfish connector inGoldfish connector in

the rectifier shelf.the rectifier shelf.

1.13 1.13

Interface Interface

- -

Rear Rear

ConnectorConnector

The rear connector on the rectifiers is a TYCO Card Edge Connector.The rear connector on the rectifiers is a TYCO Card Edge Connector.

(The part number for the backplane side is 2085089-1)(The part number for the backplane side is 2085089-1)

Pin descriptionsPin descriptions

1 1

1A 1A

1B1B

2 2

2A 2A

2B2B

1111

1010

5A5A

6A6A

7A7A

A A

Pin Pin

# #

DescriptionDescription

Pin 1,4Pin 1,4

Positive OutputPositive Output

Pin 2,3Pin 2,3

Negative OutputNegative Output

Pin 5Pin 5

AC protective EarthAC protective Earth

Pin 6Pin 6

AC AC

neutral neutral

conductor conductor

Pin 7Pin 7

AC AC

live live

(phase) (phase)

conductor conductor

Pin 8Pin 8

PostmatePostmate

Pin 9Pin 9

Rack PositionRack Position

Pin 10Pin 10

SBI CommsSBI Comms

Pin 11Pin 11

LoadshareLoadshare

Note: Note:

Unassigned pins should Unassigned pins should

not be connected to anynot be connected to any

thing and shouldthing and should

be left isolated and voltage free.be left isolated and voltage free.

Rectifier Rectifier

Installation Installation

Manual Manual

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2 Installation2 Installation

2.1 2.1

General General

WarningsWarnings

This rectifier contains no user serviceable components. Do not disassemble the rectifier.This rectifier contains no user serviceable components. Do not disassemble the rectifier.

To isolate the rectifier from the mains power, simply unplug from the rack or switch off at the distributionTo isolate the rectifier from the mains power, simply unplug from the rack or switch off at the distribution

panel.panel.

2.2 2.2

Rectifier Rectifier

ShelfShelf

The RM848/RM648 rectifiers are designed to be used with the Enatel PSX system.The RM848/RM648 rectifiers are designed to be used with the Enatel PSX system.

2.3 2.3

AC AC

Supply Supply

Surge Surge

ProtectionProtection

The AC supply that feeds the rectifiers should have surge protection installed to meet levels defined forThe AC supply that feeds the rectifiers should have surge protection installed to meet levels defined for

terminal equipment. Enatel recommend that IEC 62305-4(Protection against lightning - Part 4: Electricalterminal equipment. Enatel recommend that IEC 62305-4(Protection against lightning - Part 4: Electrical

and electronic systems within structures) be used to give guidance on the design of surge suppressionand electronic systems within structures) be used to give guidance on the design of surge suppression

systems.systems.

2.4 Ventilation2.4 Ventilation

The performance of the rectifier can be liThe performance of the rectifier can be li

mited if the ventilation is restricted. mited if the ventilation is restricted.

The rectifier is cooled byThe rectifier is cooled by

drawing air into the front of the drawing air into the front of the

unit with a single fan. unit with a single fan.

This air passes through the rectifier cooling theThis air passes through the rectifier cooling the

electronics and exiting the rectifier at electronics and exiting the rectifier at

the rear. the rear.

To ensure this happens as efficiently as To ensure this happens as efficiently as

possible ensure thepossible ensure the

following:following:



The air at the front of the rack is at ambient temperature and not being heated by other equipment.The air at the front of the rack is at ambient temperature and not being heated by other equipment.



Ensure the rectifier shelf has at Ensure the rectifier shelf has at

least 25mm clear horizontal space behind it. least 25mm clear horizontal space behind it.

This space must beThis space must be

clear of cables and any other components that may restrict air movement.clear of cables and any other components that may restrict air movement.

(Note: if multiple rectifier systems are installed then there should be at least 75mm clear horizontal(Note: if multiple rectifier systems are installed then there should be at least 75mm clear horizontal

spacespace

per shelfper shelf

.).)



The free space in the rack should continue vertically to the exhaust point at the top of the rack,The free space in the rack should continue vertically to the exhaust point at the top of the rack,

without impediment.without impediment.



The hot exhaust air should not be allowed to re-circulate to the front of the rack as this will beThe hot exhaust air should not be allowed to re-circulate to the front of the rack as this will be

drawn into the rectifiers again, in effect raising the apparent ambient temperature.drawn into the rectifiers again, in effect raising the apparent ambient temperature.

The rectifier should be operated in a low The rectifier should be operated in a low

dust environment. dust environment.

If this cannot be guaranteed, then the rackIf this cannot be guaranteed, then the rack

should be fitted with air filters to should be fitted with air filters to

prevent dust passing into the rectifier units. prevent dust passing into the rectifier units.

These filters need to beThese filters need to be

designed for adequate air volume and regularly maintained.designed for adequate air volume and regularly maintained.

Note:Note:

If you are designing your own rectifier shelf, then particular care must be taken to ensure that anyIf you are designing your own rectifier shelf, then particular care must be taken to ensure that any

metalwork, cable or printed circuit boards are placed metalwork, cable or printed circuit boards are placed

to maximise the flow of cooling to maximise the flow of cooling

air. air.

To assist in this aTo assist in this a

drawing of the rear area of the rectifier, show air flow areas, has been included in appendix 5.drawing of the rear area of the rectifier, show air flow areas, has been included in appendix 5.

2.5 2.5

Rectifier Rectifier

AddressingAddressing

Each rectifier in the system haEach rectifier in the system ha

s a unique address which identifies it to s a unique address which identifies it to

the monitor. the monitor.

This address is set byThis address is set by

the position in the rectifier shelthe position in the rectifier shel

f and the number of the shelf. f and the number of the shelf.

It is read by the It is read by the

rectifier from the backplanerectifier from the backplane

PCB and will change iPCB and will change i

f the rectifier is moved to a f the rectifier is moved to a

new location. new location.

This address structure is set up when theThis address structure is set up when the

system is built by the system manufacturer.system is built by the system manufacturer.

DANGERDANGER

Do not operate the rectifier if Do not operate the rectifier if

the covers are damaged or removed in any waythe covers are damaged or removed in any way

The rectifier contains voltages that may be lethal even after theThe rectifier contains voltages that may be lethal even after the

input supply has been removedinput supply has been removed

The rectifier contains components at High Temperatures that The rectifier contains components at High Temperatures that

maymay

burn if touchedburn if touched

Rectifier Rectifier

Installation Installation

Manual Manual

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1313

2.6 2.6

Commissioning Commissioning

the the

RectifierRectifier

1)1)

Ensure the polarity of the load and battery cables to the system are correct.Ensure the polarity of the load and battery cables to the system are correct.

2)2)

Plug the rectifier into the rectifier shelf using the following steps:Plug the rectifier into the rectifier shelf using the following steps:



Locate the metal case into the chosen slot in the system.Locate the metal case into the chosen slot in the system.



Push the rectifier into the rePush the rectifier into the re

ctifier system until the connector is fctifier system until the connector is f

ully engaged. (audible click willully engaged. (audible click will

be heard, RM848/RM648 uses an automatic locking catch)be heard, RM848/RM648 uses an automatic locking catch)



Rectifier removal is achieved by, pressing and holding the unlock button then gentle pulling onRectifier removal is achieved by, pressing and holding the unlock button then gentle pulling on

the front panel.the front panel.

3)3)

Once the rectifier is installOnce the rectifier is install

ed into the rectifier shelf, the AC ed into the rectifier shelf, the AC

power can be turned on. power can be turned on.

After the initialAfter the initial

start up period the rectifier will be set to the desired system parameters by the monitor module viastart up period the rectifier will be set to the desired system parameters by the monitor module via

the serial communications.the serial communications.

Rectifier Rectifier

Installation Installation

Manual Manual

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3 Specifications*3 Specifications*

3.1 3.1

AC AC

InputInput

NominalNominal

230V 230V

[110V [110V

for for

RM648]RM648]

Voltage RangeVoltage Range

9090

––

300V AC (reduced power below 175V for RM848)300V AC (reduced power below 175V for RM848)

[reduced power below 100V for RM648][reduced power below 100V for RM648]

Frequency RangeFrequency Range

4545

––

66Hz66Hz

Power FactorPower Factor

> >

0.990.99

EfficiencyEfficiency

> >

91% 91%

(>45% (>45%

output output

power)power)

[>88% (>45% output power for RM648)][>88% (>45% output power for RM648)]

Input FusesInput Fuses

HRC HRC

Fuses Fuses

in in

phase phase

and and

neutralneutral

Maximum Input CurrentMaximum Input Current

5.1A5.1A

[6.7A for RM648][6.7A for RM648]

ProtectionProtection

Input VoltageInput Voltage

Automatic Automatic

shutdown, shutdown,

restarts restarts

when when

correct correct

voltage voltage

restored.restored.

Input InrushInput Inrush

< <

2 2

times times

Maximum Maximum

Input Input

CurrentCurrent

3.2 3.2

DC DC

OutputOutput

NominalNominal

 48V 48V

Rated VoltageRated Voltage

 54V 54V

Adjustable Voltage RangeAdjustable Voltage Range

 43V 43V

––

58V58V

Maximum Rated CurrentMaximum Rated Current

 16.6A 16.6A

[12.5A for RM648][12.5A for RM648]

Maximum Rated PowerMaximum Rated Power

 0.8kW 0.8kW

[0.6kW for RM648][0.6kW for RM648]

RegulationRegulation

LineLine

 ±0.1% ±0.1%

LoadLoad

±0.5% ±0.5%

no no

load load

to to

full full

loadload

Hold-up timeHold-up time

>15ms >15ms

for for

20% 20%

output output

voltage voltage

dropdrop

Start-up timeStart-up time

Start-up Start-up

delay delay

1 1

second. second.

(varies (varies

with with

AC AC

supply supply

voltage)voltage)

Walk-in delay 6 seconds at full output. (varies with DC output voltage)Walk-in delay 6 seconds at full output. (varies with DC output voltage)

ProtectionProtection

Power LimitPower Limit

Adjustable Adjustable

to to

5050

––

100% of maximum rated current100% of maximum rated current

Over TemperatureOver Temperature

Automatic Automatic

current current

turndown, turndown,

backup backup

shutdown shutdown

protectionprotection

Polarity ReversalPolarity Reversal

Output Output

Fuse Fuse

with with

Crowbar Crowbar

diode diode

in in

back back

planeplane

Over VoltageOver Voltage

Adjustable Adjustable

limitlimit

NoiseNoise

RippleRipple

Below Below

100Hz 100Hz

<1mV<1mV

RMSRMS

UnweightedUnweighted

Voice bandVoice band

100Hz 100Hz

to to

5 5

kHz kHz

<2mV<2mV

RMSRMS

PsophometricPsophometric

Wide bandWide band

5 5

kHz kHz

to to

1MHz 1MHz

<5mV<5mV

RMSRMS

UnweightedUnweighted

Peak to PeakPeak to Peak

0 0

to to

20MHz 20MHz

<50mV <50mV

Peak Peak

to to

peakpeak

IsolationIsolation

Input to outputInput to output

4000V 4000V

DCDC

Rectifier Rectifier

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Manual Manual

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Input to ChassisInput to Chassis

3500V 3500V

DC DC

(VDR (VDR

to to

chassis chassis

removed)removed)

Output to ChassisOutput to Chassis

2100V 2100V

DCDC

3.3 Environmental3.3 Environmental

Operating Ambient TemperatureOperating Ambient Temperature

RatedRated

25± 25±

5 5

ºCºC

RangeRange

-10ºC -10ºC

to to

50ºC50ºC

HumidityHumidity

––

95% RH (non-condensing)95% RH (non-condensing)

Altitude <Altitude <

2500m above sea level2500m above sea level

De-rate maximum ambient temperatureDe-rate maximum ambient temperature

by 4ºC per 1000m above sea level.by 4ºC per 1000m above sea level.

3.4 Mechanical3.4 Mechanical

Dimensions Dimensions

(W, (W,

H, H,

D) D)

55mm 55mm

, ,

44 44

(1U), (1U),

260mm 260mm

overall overall

(245mm (245mm

shelf)shelf)

Weight 635gWeight 635g

Shipping Dimensions Shipping Dimensions

(W, H, (W, H,

D) D)

60mm, 52mm, 325mm60mm, 52mm, 325mm

Shipping Shipping

Weight Weight

800g800g

3.5 Compliances3.5 Compliances

Safety EN60950Safety EN60950

Electrostatic Electrostatic

Discharge Discharge

CISPR CISPR

2424

Radiated Radiated

Radio Radio

Frequency Frequency

CISPR CISPR

2222

AC AC

Harmonics Harmonics

EN EN

61000-3-261000-3-2

AC AC

Flicker Flicker

and and

Fluctuation Fluctuation

EN EN

61000-3-361000-3-3

Other Other

CE CE

& &

RoHS RoHS

compliantcompliant

Due to ongoing product development specifications are subject to change without prior notice.Due to ongoing product development specifications are subject to change without prior notice.

* Note: The specifications cover both rectifiers RM848 and low power version RM648, where* Note: The specifications cover both rectifiers RM848 and low power version RM648, where

specifications differ between rectifiers, the specifications differ between rectifiers, the

RM648 rectifier specifications are specified in tRM648 rectifier specifications are specified in t

hehe

parenthesis i.e. [ ].parenthesis i.e. [ ].