Enatel RW312U Manuel utilisateur

Installation and Operation

Manual

Model:

RW312U, RW324U, RW348U RW512U, RW517U, RW624U, RW748U

Series Rectifiers

Version 3.6

Enatel DC System Manual

Enatel 66 Treffers Road Christchurch 8042 New Zealand

Ph: +64 3 366 4550 | Fax: +64 3 366 0884 | Email: sales@enatel.net | http://www.enatel.net

Warranty

Enatel provides a one year limited warranty, details as stated under the manual section

Appendix I Enatel Energy Standard Limited Warranty Policy on page 22.

System Compliance

Low Voltage Directive (LVD) 2014/35/EU

Electromagnetic Compatibility Directive (EMC) 2014/30/EU

Release Date: 29 May 2020

Disclaimer: Enatel reserves the right to make changes to the information within this document

without notice.

Enatel Energy® is a registered trademark of Enatel. All other trademarks are acknowledged as

belonging to their respective owners.

Enatel DC System Manual

Page 3of 26

Model: RWxxx

Version: 3.6

TABLE OF CONTENTS

1Safety....................................................................................................................................................... 5

2Introduction ..........................................................................................................................................5

2.1 LEDs .................................................................................................................................................6

2.2 Display ............................................................................................................................................6

2.3 Auto Float Boost .........................................................................................................................6

2.4 Low Voltage Disconnect and Reset (Optional)................................................................7

2.5 Temperature Compensation ..................................................................................................7

2.6 Current Limit.................................................................................................................................8

2.7 Output Over Voltage Shut Down .........................................................................................8

2.8 Input Over Voltage Shut Down.............................................................................................8

2.9 Input Inrush Current Limiter ...................................................................................................8

2.10 Over Temperature Shutdown ................................................................................................8

2.11 Reverse Polarity Protection.....................................................................................................8

2.12 Parallel Rectifier Operation .....................................................................................................8

2.13 External Shutdown .....................................................................................................................9

2.14 Alarm & Control Interface .......................................................................................................9

2.15 Internal Alarm Card (Optional)..............................................................................................9

3Installation ........................................................................................................................................... 10

3.1 General Warnings..................................................................................................................... 10

3.2 Rectifier Positioning................................................................................................................. 10

3.3 Cabling.......................................................................................................................................... 12

3.4 Temperature Compensation ................................................................................................ 13

3.5 Multiple Rectifiers..................................................................................................................... 13

3.6 Internal Alarm Card (Optional)............................................................................................ 14

3.7 Relays ............................................................................................................................................ 14

3.8 Rectifier Fail/Mains Fail........................................................................................................... 15

3.8.1 Rectifiers in Parallel....................................................................................................... 15

4Commissioning the Rectifier......................................................................................................... 16

5Servicing............................................................................................................................................... 16

5.1 Warnings...................................................................................................................................... 16

5.2 Troubleshooting........................................................................................................................ 17

5.3 Fuses.............................................................................................................................................. 17

6Setting Changes ................................................................................................................................ 18

6.1 Default Settings........................................................................................................................ 20

Enatel DC System Manual

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Model: RWxxx

Version: 3.6

6.2 Adjust Float Voltage ............................................................................................................... 20

6.3 Adjust Boost Voltage.............................................................................................................. 20

6.4 Adjust Boost to Float Current Threshold ........................................................................ 20

6.5 Adjust Current Limit................................................................................................................. 21

6.6 Adjust Over-Voltage Shutdown.......................................................................................... 21

6.7 Adjust Low Voltage Disconnect and Hysteresis............................................................ 21

6.8 Adjust Temperature Compensation Slope..................................................................... 22

6.9 Adjusting the alarm output volt low/high setting ....................................................... 22

Appendix I Enatel Energy Standard Limited Warranty Policy................................................... 22

I.A Warranty Exclusions and Restrictions............................................................................... 23

I.B Battery Warranty...................................................................................................................... 23

I.C Initiating a Warranty Claim .................................................................................................. 23

I.DDisclaimer................................................................................................................................... 24

I.E Remark......................................................................................................................................... 24

TABLE OF FIGURES

Figure 1: Rectifier Mounting ..................................................................................................................11

Figure 2: Rectifier View............................................................................................................................11

Figure 3: Cabling Architecture............................................................................................................. 12

Figure 4: DC Connector ......................................................................................................................... 13

Figure 5: Alarm Contacts....................................................................................................................... 14

Figure 6: Alarm Configuration............................................................................................................. 15

Figure 7: Trimpot Access ....................................................................................................................... 19

Figure 8: Trimpot Functions ................................................................................................................. 19

LIST OF TABLES

Table 1: RW Models...................................................................................................................................5

Table 2: Low Voltage Disconnect.........................................................................................................7

Table 3: Pin descriptions..........................................................................................................................9

Table 4: Fuse specifications by model:............................................................................................. 18

Table 5: Default Settings....................................................................................................................... 20

Enatel DC System Manual

Page 5of 26

Model: RWxxx

Version: 3.6

1SAFETY

All installation and maintenance must be carried out by

suitably qualified personnel.

For your protection, the product manual should be read and

thoroughly understood before unpacking, installing and

using the equipment.

2INTRODUCTION

The RW range of freestanding convection cooled wall-mount rectifiers consists of the

following models:

Table 1: RW Models

Model Input Volts Max Input

Current

Nominal

Voltage

Rated

Voltage

Range

Maximum

Current

Power

Rating

RW312U 110 – 240V 4A 12V 13.7V 11.5-15V 20A 300W

RW324U 110 – 240V 4A 24V 27.4V 22-30V 10A 300W

RW348U 110 – 240V 4A 48V 54.0V 45-60V 6A 300W

RW512U 110 – 240V 8.5A 12V 13.7V 11.5-15V 35A 500W

RW517U 110 – 240V 8.5A 17V 17.4V 13-17.6 26A 500W

RW624U

110 – 240V 8.5A 24V 27.4V 22-30V 22A 600W

RW748U 110 – 240V 4A 48V 54.0V 45-60V 12A 700W

The features of the rectifiers are:

•Convection Cooled

•Thermal Protection

•Power Factor Corrected

•Input/Output Voltage and Current

Protected

•Temperature Compensation

•Built in LVD - Battery Low Voltage

Disconnect (Option)

•Automatic Boost/Float Charge cycle

•Active Load Sharing when operated

in parallel with another rectifier

•External Alarm and Control interface

(Option)

•Bar Graph Current Indicator

•Integrated Alarm Outputs (Option)

Enatel DC System Manual

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Model: RWxxx

Version: 3.6

Custom configurations of the rectifier are available for specific requirements, and some

features may not be (or extra features may be) present in each unit.

2.1 LEDs

There are 4 LEDs that indicate the operational state of the rectifier. These LEDs can be

used to determine the present state of the rectifier and diagnose faults.

Mains On:

•This LED glows green to indicate that mains power is connected to the unit and

that the primary stages of the rectifier are operating.

Off Normal LED:

•Yellow – Rectifier in “Current Limit”

•Red – Rectifier shutdown through over voltage or over temperature.

Float/Boost LED:

•Green – Rectifier operating in “Float Charge” mode

•Yellow – Rectifier operating in “Boost Charge” mode

Temperature Probe LED:

•Green – Temperature Compensation Probe connected and within limits

•Red – Rectifier has failed– also lights if the output voltage is externally forced

above the rectifier output voltage + 4.5%. Powered from the battery. Off if the

LVD has tripped.

NOTE: if the Temperature Compensation Probe is connected and the rectifier fails, the LED

may not show. The monitor external signals are still correct. To verify the condition,

unplug the Temperature Compensation Probe.

2.2 Display

A row of LEDs on the front panel indicates the approximate percentage current output

from the rectifier (only 1 LED is lit at any one time). So if the 60% LED is displayed on a RW

312 rectifier, then the current being drawn from the rectifier is 60% of 20A = 12Amps.

2.3 Auto Float Boost

When the rectifier is powered on, the rectifier starts in Boost Charge mode. If the battery

charge current is above the Boost to Float Current threshold, it will stay in Boost Charge

mode. When the battery charge current falls below the Boost to Float Current threshold

for more than 10 seconds, it will switch to Float Charge mode. If for some reason the

battery charge current rises above the Boost to Float Current threshold, the rectifier will

switch back into Boost Charge mode (there is no time delay).

A Boost Timer limits the time the rectifier stays in Boost Charge mode. While the rectifier

is in Boost Charge mode and in Current Limit, the Boost Timer is inhibited. When the

rectifier comes out of Current Limit, the Boost Timer starts and will automatically switch

Enatel DC System Manual

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Model: RWxxx

Version: 3.6

the rectifier into Float Charge mode after about 4 hours, even if the battery current

remains above the Boost to Float Current threshold.

The Boost and Float voltages are pre-set in the factory but may be adjusted to suit the

specific battery installation.

2.4 Low Voltage Disconnect and Reset (Optional)

The Low Voltage Disconnect (LVD) feature is designed to protect the battery from deep

discharge when the battery is supplying the load current (i.e. mains is off, or the load is

drawing more than the rectifier capacity).

The rectifier monitors the battery voltage when the battery is supplying current, and

disconnects the load from the battery when the battery voltage falls to a pre-set level.

When the battery voltage has increased above the LVD Hysteresis voltage the load is

automatically reconnected back to the battery.

The LVD may be manually reset when it has activated by pressing the LVD Reset button

on the front of the rectifier.

The LVD switches the battery +ve supply (the -ve is common with the battery). Do not

connect the Battery and Load +ve together.

The LVD voltage and the LVD Hysteresis voltage are pre-set in the factory, but may be

adjusted to suit the specific battery installation.

Table 2: Low Voltage Disconnect

Model

Voltage Adjustment Range

Maximum Load Current

RW312U

9.5 to 12V

20A

RW324U

19 to 24V

10A

RW348U

38 to 48V

RW512U

9.5 to 12V

35A

RW517U

9.5 to 12V

26A

RW624U

13 to 17.6V

22A

RW748U

38 to 48V

12A

Do NOT exceed the maximum load current, as the rectifier LVD circuitry may be

damaged. The LVD circuitry is protected by shutting down if its circuitry is overheated due

to over current conditions. Excessive overloading will cause an internal protection fuse to

rupture.

If the LVD functionality is not required, the load must be connected to the Load

connection (not directly onto the battery). That is, connect all Load & battery connections

to load terminal only. Note the Auto Float Boost functionality is lost and the battery

subject to complete drain.

2.5 Temperature Compensation

Batteries require different charging voltages depending on the ambient temperature of

the battery. The colder the battery, the higher the voltage required to charge the battery.

Enatel DC System Manual

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Model: RWxxx

Version: 3.6

The battery temperature is measured by connecting a Temperature Compensation Probe

(available separately) to one of the battery terminals. The rectifier will then automatically

adjust the charging voltage.

The Temperature Compensation Slope is pre-set in the factory but is adjustable from 0.1%

to 0.2% change in charge voltage per degree C.

If the Temperature Compensation Probe is not connected, then the rectifier will assume a

battery temperature of 25°C.

2.6 Current Limit

The rectifier automatically limits the rectifier output current. The maximum output current

is pre-set in the factory but may be adjusted down.

2.7 Output Over Voltage Shut Down

The rectifier will automatically shutdown if the output voltage exceeds the pre-set value.

The Over Voltage Shutdown voltage is pre-set in the factory but may be adjusted.

2.8 Input Over Voltage Shut Down

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

allowed voltage is restored.

2.9 Input Inrush Current Limiter

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

current. The output voltage and current rise slowly from zero during start-up.

2.10 Over Temperature Shutdown

When the rectifier reaches its maximum operating temperature, the rectifier will

progressively reduce the output current to attempt to reduce the heat within the unit. In

extreme circumstances, the rectifier will totally shutdown.

The maximum operating temperature range is:

Model

Temperature

312U, 324U, 348U

-10 to 65°C

512U, 517U, 624U, 748U

-10 to 50°C

2.11 Reverse Polarity Protection

The rectifier has an internal reverse polarity protection fuse and crowbar diode fitted.

These parts are not user serviceable, and the rectifier will require returning for servicing if

they fail.

2.12 Parallel Rectifier Operation

The rectifiers may be connected in parallel to source more current, or to provide a degree

of redundancy. The rectifiers should have the load share signal connected between the

rectifiers. This is achieved by connecting the load share signal line on the Alarm & Control

Enatel DC System Manual

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Model: RWxxx

Version: 3.6

Interface port on each rectifier. The rectifiers with the higher voltage output will

automatically adjust their output voltage down so that they each take a uniform share of

the load.

The rectifiers connected in parallel must all be of the same brand and voltage rating.

Different power ratings can be combined, a 300W model may be connected in parallel

with a 600W model (e.g. a 324 with a 624).

2.13 External Shutdown

The rectifier can be remotely forced to shutdown by applying a positive 10-12V signal to

the rectifier load share pin of the Monitor connector. (With respect to –ve battery/load

common)

2.14 Alarm & Control Interface

The monitor connection allows remote monitoring of the rectifier. The monitor

connection is a RJ45 socket. The pinout of the socket is as follows:

Table 3: Pin descriptions

Pin #

Description

Pin 1

Load Share signal (0-5V), external shutdown (10-12V in)

Pin 2

LVD Synch signal

Pin 3

Temp Comp Probe/Output Voltage Control

Pin 4

Rectifier Failed Signal – Pulls to ground via 4k7 resistor

Pin 5

-ve for Temp Comp Probe (signal Gnd)

Pin 6

Rectifier “Off Normal” alarm (open collector output)

Pin 7

+V Battery Out (max 250mA)

Pin 8

Mains fail (open collector output) (off = mains present)

2.15 Internal Alarm Card (Optional)

The internal alarm card may be fitted to a rectifier. The alarm card provides voltage free

relay contacts in the event of:

•Mains failure

•Rectifier failure

•Rectifier Off Normal (over temperature, over voltage, current limit)

•High voltage output

•Low voltage output

Pin 1 is the left most pin, when facing

the socket with the pins on the bottom.

Enatel DC System Manual

Page 10 of 26

Model: RWxxx

Version: 3.6

When rectifiers are connected in parallel using an RJ45 cable to connect between the

alarm and control interface on each rectifier, the alarm outputs on the Alarm Card give

the status of all the connected units. This means that only one alarm card needs to be

connected to the alarm circuitry when the rectifiers are connected in parallel

3INSTALLATION

3.1 General Warnings

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

To isolate the rectifier from the mains power, unplug the IEC mains connector from the

rectifier.

DANGER Do not operate the rectifier if the covers are damaged

or removed in any way.

WARNING The rectifier contains voltages that may be lethal even

after the input supply has been removed.

WARNING The rectifier contains components at high temperature

that may burn if touched

3.2 Rectifier Positioning

Caution

The rectifier is convection cooled and MUST be mounted correctly.

It must be on a vertical surface (wall), perpendicular to the floor.

It must be mounted in a “landscape” orientation with side

connectors on the right.

Do not mount rectifiers above each other.

Observe all instructions on the rectifier.

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