Victron energy 1600VA-70A EasyPlus Compact Le manuel du propriétaire

Manual

EN

Handleiding

NL

Manuel

FR

Anleitung

DE

Manual

ES

Appendix

EasyPlus

12 | 1600 | 70-16 230V

Copyrights  2008 Victron Energy B.V.

This publication or parts thereof may not be reproduced in any form, by any method, for any

purpose.

For conditions of use and permission to use this manual for publication in other than the

English language, contact Victron Energy B.V.

VICTRON ENERGY B.V. MAKES NO WARRANTY, EITHER EXPRESSED OR IMPLIED, INCLUDING

BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE, REGARDING THESE VICTRON ENERGY PRODUCTS AND MAKES SUCH

VICTRON ENERGY PRODUCTS AVAILABLE SOLELY ON AN ‘AS IS’ BASIS.

IN NO EVENT SHALL VICTRON ENERGY B.V. BE LIABLE TO ANYONE FOR SPECIAL, COLLATERAL,

INCIDENTAL, OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING OUT OF

PURCHASE OR USE OF THESE VICTRON ENERGY PRODUCTS. THE SOLE AND EXCLUSIVE

LIABILITY TO VICTRON ENERGY B.V., REGARDLESS OF THE FORM OF ACTION, SHALL NOT

EXCEED THE PURCHASE PRICE OF THE VICTRON ENERGY PRODUCTS DESCRIBED HERE IN.

Victron Energy B.V. reserves the right to revise and improve its products as it sees fit. This

publication describes the state of this product at the time of its publication and may not

reflect the product at all times in the future

1

EN NL FR DE ES Appendix

1. SAFETY INSTRUCTIONS

General

Please familiarize yourself with the safety features and instructions by first reading the

documentation supplied with this product before using the equipment. This product has been

designed and tested in accordance with international standards. The equipment must be used

exclusively for the purpose for which it was designed.

WARNING: ELECTRIC SHOCK HAZARD.

The product is used in conjunction with a permanent energy source (battery). Input and/or output

terminals may still be dangerously energized, even when the equipment is switched off. Always

switch off the AC supply and the battery before carrying out maintenance or servicing the product.

The product has no internal user-serviceable components. Do not remove the front plate or

operate the product if any panels have been removed. All servicing must be undertaken by

qualified personnel.

Never use the product where there is a risk of gas or dust explosions. Consult the battery

manufacturer's information to ascertain that the product is intended for use in conjunction with

the battery. Always comply with the battery manufacturer's safety instructions.

WARNING: Do not lift heavy loads without assistance.

Installation

Read the installation instructions in the installation manual before installing the equipment.

This is a Safety Class I product (supplied with a protective grounding terminal). Uninterruptible

protective grounding must be provided at the AC input and/or output terminals. Alternatively,

the grounding point located externally on the product may be used. Whenever it is likely that the

grounding protection has been damaged, the product must be turned off and secured against

unintended operation; please contact qualified service staff.

Ensure that the DC and AC input cables are fused and fitted with circuit breakers. Never replace a

safety component with a different type. Consult the manual to determine the correct component.

Before applying power, ensure that the available power source matches the configuration settings of

the product as described in the manual.

2

Ensure that the equipment is used under the correct ambient conditions. Never operate the product

in a wet or dusty environment. Ensure there is adequate free space for ventilation around the product

and check that the ventilation vents are not blocked.

Ensure that the required system voltage does not exceed the product's capacity.

Transport and Storage

Ensure that the mains power and battery cables have been disconnected before storing or

transporting the product.

No liability can be accepted for any transport damage if the equipment is shipped in non-original

packaging.

Store the product in a dry environment; the storage temperature must be between -40 °C and 60 °C.

Consult the battery manufacturer's manual in respect of transport, storage, charging, recharging and

disposal of the battery.

3

EN NL FR DE ES Appendix

2. DESCRIPTION

2.1 General

EasyPlus-functional

The EasyPlus is a powerful true sine wave inverter, a sophisticated battery charger that features

adaptive charge technology and a high-speed AC transfer switch in a single compact enclosure.

Beside these primary functions, however, the EasyPlus has several advanced features that provide

a range of new applications as outlined below.

Uninterrupted AC power

In the event of a grid failure, or shore or generator power being disconnected, the inverter within

the EasyPlus is automatically activated and takes over supply to the connected loads. This happens

so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to

operate without disruption.

PowerControl – Dealing with limited generator or shore side power

With a Multi Control Panel a maximum generator or shore current can be set. The EasyPlus will then

take account of other AC loads and use whatever is extra for charging, thus preventing the

generator or shore supply from being overloaded.

PowerAssist – Boosting the capacity of shore or generator power

This feature takes the principle of PowerControl to a further dimension allowing the EasyPlus to

supplement the capacity of the alternative source. Where peak power is so often required only for a

limited period, it is possible to reduce the size of generator needed or conversely enable more to be

achieved from the typically limited shore connection. When the load reduces, the spare power is used

to recharge the battery.

Programmable relay

The EasyPlus is equipped with a programmable relay that by default is set as an alarm relay. The relay

can be programmed for all kinds of other applications, for example as a starter relay for a generator.

4

2.2 Battery Charger

Adaptive 4-stage charge characteristic: bulk – absorption – float – storage

The EasyPlus features a microprocessor controlled ‘adaptive’ battery management system that can

be preset to suit different types of batteries. The ‘adaptive’ feature will automatically optimize the

process relative to the way the battery is being used.

The right amount of charge: variable absorption time

When only shallow discharges occur (a yacht connected to shore power for example) the absorption

time is kept short in order to prevent overcharging of the battery. After a deep discharge the

absorption time is automatically increased to make sure that the battery is completely recharged.

Preventing damage due to excessive gassing: the BatterySafe mode

If, in order to quickly charge a battery, a high charge current in combination with a high absorption

voltage has been chosen, the EasyPlus will prevent damage due to excessive gassing by automatically

limiting the rate of voltage increase once the gassing voltage has been reached.

Less maintenance and aging when the battery is not in use: the Storage mode

The storage mode kicks in whenever the battery has not been subjected to discharge during 24 hours.

In the storage mode float voltage is reduced to 2,2 V/cell (13,2 V for a 12 V battery) to minimize gassing

and corrosion of the positive plates. Once a week the voltage is raised back to the absorption level to

‘equalize’ the battery. This feature prevents stratification of the electrolyte and sulphation, a major

cause of early battery failure.

Two outputs to charge 2 battery banks

The EasyPlus features 2 outputs, of which 1 can carry the full output current. The second output,

limited to approximately 4 A and with a slightly lower output voltage, is intended to top up a starter

battery.

To increase battery life: temperature compensation

Every EasyPlus comes with a battery temperature sensor. When connected, charge voltage will

automatically decrease with increasing battery temperature. This feature is especially recommended

for sealed batteries and/or when important fluctuations of battery temperature are expected.

Learn more about batteries and battery charging

To learn more about batteries and charging batteries, please refer to our book ‘Electricity on Board’

(available free of charge from Victron Energy and downloadable from www.victronenergy.com). For

more information about adaptive charging please look under Technical Briefs on our website.

5

EN NL FR DE ES Appendix

3. OPERATION

3.1 On/Off/Charger Only Switch

When switched to ‘on’, the product is fully functional. The inverter will come into operation and

the LED ‘inverter on’ will light up.

An AC voltage connected to the ‘AC in’ terminal will be switched through to the ‘AC out’ terminal,

if within specifications. The inverter will switch off, the ‘mains on’ LED will light up and the charger

commences charging. The ‘bulk’, ‘absorption’ or ‘float’ LEDs will light up, depending on the charger

mode.

If the voltage at the ‘AC-in’ terminal is not within specifications, the inverter will switch on.

When the switch is switched to ‘charger only’, only the battery charger of the EasyPlus will operate

(if mains voltage is present). In this mode input voltage also is switched through to the ‘AC out’

terminal.

NOTE: When only the charger function is required, ensure that the switch is switched to ‘charger

only’. This prevents the inverter from being switched on if the mains voltage is lost, thus preventing

your batteries from running flat.

3.2 Remote control

Remote control is possible with a 3-way switch, with a Digital Multi Control panel.

The Control panel has a simple rotary knob with which the maximum current of the AC input can

be set: see PowerControl and PowerAssist in Section 2.

For the appropriate DIP switch settings, see sect. 5.5.1.

3.3 Equalisation and forced absorption

3.3.1 Equalisation

Traction batteries may require regular equalisation charging. In the equalisation mode, the EasyPlus

will charge with increased voltage for one hour (1 V above the absorption voltage for a 12 V battery,

2 V for a 24 V battery). The charging current is then limited to 1/4 of the set value. The ‘bulk’ and

‘absorption’ LEDs flash intermittently.

Equalisation mode supplies a higher charging voltage than most DC consuming

devices can cope with. These devices must be disconnected before additional charging

takes place.

3.3.2 Forced absorption

Under certain circumstances, it can be desirable to charge the battery for a fixed time at absorption

voltage level. In Forced Absorption mode, the EasyPlus will charge at the normal absorption voltage

level during the set maximum absorption time. The ‘absorption’ LED will be ‘on’.

6

3.3.3 Activating equalisation or forced absorption

The EasyPlus can be put into both these states from the remote panel as well as with the front panel

switch, provided that all switches (front, remote and panel) are set to ‘on’ and no switches are set to

‘charger only’.

In order to put the EasyPlus in this state, the procedure below should be followed.

If the switch is not in the required position after following this procedure, it can be switched over

quickly once. This will not change the charging state.

NOTE: Switching from ‘on’ to ‘charger only’ and vice versa, as described below, must be done quickly. The switch

must be toggled such that the intermediate position is 'skipped', as it were. If the switch remains in the ‘off’ position

even for a short time, the device may be turned off. In that case, the procedure must be restarted at step 1. A certain

degree of familiarisation is required when using the front switch on the EasyPlus in particular. When using the

remote panel, this is less critical.

Procedure:

1. Check whether all switches (i.e. front switch, remote switch or remote panel switch if present) are

in the ‘on’ position.

2. Activating equalisation or forced absorption is only meaningful if the normal charging cycle is

completed (charger is in 'Float').

3. To activate:

a. Switch rapidly from ‘on’ to ‘charger only’ and leave the switch in this position for ½ to 2 seconds.

b. Switch rapidly back from ‘charger only’ to ‘on’ and leave the switch in this position for ½ to 2

seconds.

c. Switch once more rapidly from ‘on’ to ‘charger only’ and leave the switch in this position.

4. On the EasyPlus the three LEDs ‘Inverter’, ‘Charger’ and ‘Alarm’ will now flash 5 times.

If a MultiControl panel is connected, on the panel the LEDs ‘bulk’, ‘absorption’ and ‘float’ will also

flash 5 times.

5. Subsequently, on the EasyPlus the LEDs ‘Bulk’, ‘Absorption’ and ‘Float’ will each light during 2

seconds.

If a MultiControl panel is connected, on the panel the LEDs ‘bulk’, ‘absorption’ and ‘float’ will also

each light during 2 seconds.

6.

a. If the switch on the EasyPlus is set to ‘on’ while the ‘Bulk’ LED lights, the charger will switch to

equalisation.

Similarly, if the switch on the MultiControl panel is set to ‘on’ while the ‘Bulk’ LED lights, the charger

will switch to equalisation.

b. If the switch on the EasyPlus is set to ‘on’ while the ‘Absorption’ LED lights, the charger will switch

to forced absorption.

Similarly, if the switch on the MultiControl panel is set to ‘on’ while the ‘Absorption’ LED lights, the

charger will switch to forced absorption.

c. If the switch on the EasyPlus is set to ‘on’ after the three LED sequence has finished, the charger will

switch to ‘Float’.

Similarly, if the switch on the MultiControl panel is set to ‘on’ after the three LED sequence has

finished, the charger will switch to ‘float’.

d. If the switch has not been moved, the EasyPlus will remain in ‘charger only’ mode and switch to

‘Float’.

7

EN NL FR DE ES Appendix

3.4 LED Indications

Inverter

The inverter is switched on and supplies

power to the load. Battery operation.

inverter

on

charger

off

alarm

charger only

inverter

on

charger

off

alarm

charger only

The inverter is switched off.

Alarm: overload, or

battery voltage low, or

inverter temperature high, or

DC ripple voltage on battery

terminal was too high.

inverter

on

charger

off

alarm

charger only

LED off

LED flashes

LED illuminated

The inverter is switched on and supplies

power to the load.

Pre alarm: overload, or

battery voltage low, or

inverter temperature high

8

Charger

The AC input voltage is switched through and

the charger operates in bulk or absorption

mode.

inverter

on

charger

off

alarm

charger only

The AC input voltage is switched through and

the charger is switched off.

The battery charger can not reach battery

end voltage (bulk protection mode).

inverter

on

charger

off

alarm

charger only

The AC input voltage is switched through and

the charger operates in bulk or absorption

mode.

inverter

on

charger

off

alarm

charger only

The AC input voltage is switched through and

the charger operates in float mode.

inverter

on

charger

off

alarm

charger only

9

EN NL FR DE ES Appendix

4. INSTALLATION

4.1 Location

The product must be installed in a dry and well-ventilated area, as close as possible to the

batteries. There should be a clear space of at least 10cm around the appliance for cooling.

The product is suitable for wall mounting. For mounting see appendix A.

The appliance can be mounted horizontally as well as vertically; vertical mounting is preferable.

The vertical position offers optimum cooling.

The interior of the product must remain accessible after installation.

Try and keep the distance between the product and the battery to a minimum in order to minimize

cable voltage losses.

For safety purposes, this product should be installed in a heat-resistant environment

if it is used with equipment where a substantial amount of power is to be converted.

You should prevent the presence of e.g. chemicals, synthetic components, curtains or

other textiles, etc., in the immediate vicinity.

This product should be installed by a qualified electrician.

Excessively high ambient temperature will result in the following:

Reduced service life.

Reduced charging current.

Reduced peak capacity, or shutdown of the inverter.

Never mount the appliance directly above the batteries.

10

4.2 Connection of Battery cables

In order to fully utilize the full capacity of the product, batteries with sufficient capacity and battery

cables with sufficient cross section should be used. See table.

12/1600

Preassembled cable

length 1.5 m (mm2)

35

Recommended cross

section (mm

2

)

1,5 1  5 m

70

5  10 m

140

12/1600

Recommended

battery capacity (Ah)

200 – 700

Remark: Internal resistance is the important factor when working with low-capacity batteries. Please

consult your supplier or the relevant sections of our book ‘electricity on board’, downloadable from

our website.

Procedure

Proceed as follows to connect the battery cables:

Use an insulated box spanner in order to avoid shorting the battery.

Avoid shorting the battery cables.

Connect the battery cables: the + (red) and the - (black), to the battery see appendix A.

Reverse polarity connection (+ to – and – to +) will cause damage to the product. (Safety fuse inside

the EasyPlus can be damaged)

Secure the nuts tightly in order to reduce the contact resistance as much as possible.

11

EN NL FR DE ES Appendix

4.3 Connection of the AC cabling

The mains input & output terminal connector can be found on the bottom of the EasyPlus, see

appendix A. The shore or mains cable must be connected to the connector with a three-wire cable.

Use a three-wire cable with a flexible core and a cross section of 2.5 mm².

Procedure

Proceed as follows to connect the AC cables:

The AC output cable can be connected directly to the male-connector. (the connector pulls out!)

The terminal points are indicated clearly. From left to right: ‘N’ (neutral), earth, and ‘L1’ (phase).

The AC input cable can be connected directly to the female-connector. (the connector pulls out!)

The terminal points are indicated clearly. From left to right: ‘L1’ (phase), earth, and ‘N’ (neutral).

Push the ‘input’ connector into the AC-in connector (left-side).

Push the ‘output’ connectors into the AC-out connector (AC0 to AC3 from left to right-side).

This is a Safety Class I product (supplied with a protective grounding terminal).

Uninterruptible protective grounding must be provided at the AC input and/or

output terminals and/or chassis grounding point located externally on the

product.

The EasyPlus

is provided with a ground relay (relay H, see appendix B) that

automatically connects the Neutral output to the chassis if no external AC supply

is available

. If an external AC supply is provided, the ground relay H will open before

the input safety relay closes. This ensures the correct operation of an earth leakage

circuit breaker that is connected to the output.

- In a fixed installation, an uninterruptable grounding can be secured by means of the

grounding wire of the AC input. Otherwise, the casing must be grounded.

- In a mobile installation (for example, with a shore current plug), interrupting the

shore connection will simultaneously disconnect the grounding connection. In that

case, the casing must be connected to the chassis (of the vehicle) or to the hull or

grounding plate (of the boat).

-

In case of a boat, direct connection to the shore ground is not recommended

because of potential galvanic corrosion. The solution to this is using an isolation

transformer.

12

4.4 Optional Connections

A number of optional connections are possible:

Undo the four screws at the front of the enclosure and remove the front panel.

4.4.1 Second Battery

The EasyPlus has a connection (+) for charging a starter battery. For connection see appendix 1

4.4.2 Temperature Sensor

The temperature sensor supplied with the product may be used for temperature-compensated

charging. The sensor is insulated and must be mounted on the batteries minus pole. Default output

voltages for Float and Absorption are at 25 °C. In adjust mode temperature compensation is disabled.

4.4.3 Remote Control panel & remote on/off switch

The product can be remotely controlled in two ways:

- With an external 3-way switch

- With a Multi Control Panel

Please see section 5.5.1. for appropriate DIP switch settings.

Only one remote control can be connected, i.e. either a switch or a remote control panel.

4.4.4. Programmable relay

The EasyPlus is equipped with a multi-functional relay that by default is programmed as an alarm

relay. The relay can be programmed for all kinds of other applications, for example to start a generator

(VEConfigure software needed).

Near the connection terminals an LED illuminates when the relay is activated (refer to S, see appendix

A)

10.0

10.5

11.0

11.5

12.0

12.5

13.0

13.5

14.0

14.5

15.0

0 5 10 15 20 25 30 35 40 45 50 55 60

Battery temperature

Volts

20

21

22

23

24

25

26

27

28

29

30

Volts

13

EN NL FR DE ES Appendix

4.4.5 Parallel Connection

The EasyPlus can be connected in parallel with several identical devices. To this end, a connection

is established between the devices by means of standard RJ45 UTP cables. The system (one or more

EasyPlus units plus optional control panel) will require subsequent configuration (see Section 5).

In the event of connecting EasyPlus units in parallel, the following requirements must be met:

- A maximum of six units connected in parallel.

- Only identical devices may be connected in parallel.

- The DC connection cables to the devices must be of equal length and cross-section.

- If a positive and a negative DC distribution point are used, the cross-section of the connection

between the batteries and the DC distribution point must at least equal the sum of the required

cross-sections of the connections between the distribution point and the EasyPlus units.

- Place the EasyPlus units close to each other, but allow at least 10cm for ventilation purposes

under, above and beside the units.

- UTP cables must be connected directly from one unit to the other (and to the remote panel).

Connection/splitter boxes are not permitted.

- A battery-temperature sensor need only be connected to one unit in the system. If the

temperature of several batteries is to be measured, you can also connect the sensors of other

EasyPlus units in the system (with a maximum of one sensor per EasyPlus). Temperature

compensation during battery charging responds to the sensor indicating the highest

temperature.

- Voltage sensing must be connected to the master (see Section 5.5.1.4).

- If more than three units are connected in parallel in one system, a dongle is required (see

Section 5).

- Only one remote control means (panel or switch) can be connected to the system.

4.4.6 Three-phase operation (see appendix D)

The EasyPlus can also be used in 3-phase configuration. To this end, a connection between the

devices is made by means of standard RJ45 UTP cables (the same as for parallel operation). The system

(EasyPlus units plus an optional control panel) will require subsequently configuration (see Section

5).

Pre-requisites: see Section 4.4.5.

14

5. CONFIGURATION

5.1 Standard settings: ready for use

On delivery, the EasyPlus is set to standard factory values. In general, these settings are suitable for

single-unit operation.

Warning: Possibly, the standard battery charging voltage is not suitable for your batteries!

Refer to the manufacturer's documentation, or to your battery supplier!

Standard EasyPlus factory settings

Inverter frequency 50 Hz

Input frequency range 45 - 65 Hz

Input voltage range 180 - 265 VAC

Inverter voltage 230 VAC

Stand-alone / parallel / 3-phase stand-alone

Search mode off

Ground relay on

Charger on/ off on

Battery charge curve four-stage adaptive with BatterySafe mode

Charge current 75 % of the maximum charge current

Battery type Victron Gel Deep Discharge (also suitable

for Victron AGM Deep Discharge)

Automatic equalisation charging off

Absorption voltage 14.4 V

Absorption time up to 8 hours (depending on bulk time)

Float voltage 13.8 V

Storage voltage 13.2 V (not adjustable)

Repeated absorption time 1 hour

Absorption repeat interval 7 days

Bulk protection on

AC input current limit 12 A (= adjustable current limit for PowerControl and

PowerAssist functions)

UPS feature on

Dynamic current limiter off

WeakAC off

BoostFactor 2

PowerAssist on

Programmable relay alarm function

Settings may only be changed by a qualified engineer

Carefully read the instructions before changes are made.

Batteries should be placed in a dry and well-ventilated area during charging.

15

EN NL FR DE ES Appendix

5.2 Explanation of settings

Settings that are not self-explanatory are described briefly below. For further information, please

refer to the help files in the software configuration programs (see Section 5.3).

Inverter frequency

Output frequency if no AC is present at the input.

Adjustability: 50 Hz; 60 Hz

Input frequency range

Input frequency range accepted by the EasyPlus. The EasyPlus synchronises within this range with

the AC input frequency. The output frequency is then equal to the input frequency.

Adjustability: 45 – 65 Hz; 45 – 55 Hz; 55 – 65 Hz

Input voltage range

Voltage range accepted by the EasyPlus. The EasyPlus synchronises within this range with the AC

input voltage. The output voltage is then equal to the input voltage.

Adjustability:

Lower limit: 180 - 230 V

Upper limit: 230 - 270 V

Inverter voltage

Output voltage of the EasyPlus in battery operation.

Adjustability: 210 – 245 V

Search Mode (Applicable in stand-alone configuration only)

If search mode is ‘on’, the power consumption in no-load operation is decreased by approx. 70 %. In

this mode the EasyPlus, when operating in inverter mode, is switched off in case of no load or very

low load, and switches on every two seconds for a short period. If the output current exceeds a set

level, the inverter will continue to operate. If not, the inverter will shut down again.

The Search Mode can be set with a DIP switch.

The Search Mode ‘shut down’ and ‘remain on’ load levels can be set with VEConfigure.

The standard settings are:

Shut down: 40 Watt (linear load)

Turn on: 100 Watt (linear load)

16

AES (Automatic Economy Switch)

Instead of the search mode, the AES mode can also be chosen (with help of VEConfigure only).

If this setting is turned ‘on’, the power consumption in no-load operation and with low loads is

decreased by approx. 20 %, by slightly 'narrowing' the sinusoidal voltage.

Not adjustable with DIP switches.

Applicable in stand-alone configuration only.

Ground relay (see appendix B)

With this relay (H), the neutral conductor of the AC output is grounded to the chassis when the back

feed safety relay is open. This ensures the correct operation of earth leakage circuit breakers in the

output.

If a non-grounded output is required during inverter operation, this function must be turned off.

Not adjustable with DIP switches.

Battery charge curve

The standard setting is ‘Four-stage adaptive with BatterySafe mode’. See Section 2 for a description.

This is the recommended charge curve. See the help files in the software configuration programs for

other features.

Battery type

The standard setting is the most suitable for Victron Gel Deep Discharge, Gel Exide A200, and tubular

plate stationary batteries (OPzS). This setting can also be used for many other batteries: e.g. Victron

AGM Deep Discharge and other AGM batteries, and many types of flat-plate open batteries. Four

charging voltages can be set with DIP switches.

Automatic equalisation charging

This setting is intended for tubular plate traction batteries. During absorption the voltage limit

increases to 2,83 V/cell (34 V for a 24 V battery) once the charge current has tapered down to less than

10 % of the set maximum current.

Not adjustable with DIP switches.

See ’tubular plate traction battery charge curve’ in VEConfigure.

Absorption time

The absortion time depends on the bulk time (adaptive charge curve), so that the battery is optimally

charged. If the ‘fixed’ charging characteristic is selected, the absorption time is fixed. For most

batteries, a maximum absorption time of eight hours is suitable. If an extra high absorption voltage is

selected for rapid charging (only possible for open, flooded batteries!), four hours is preferable. With

DIP switches, a time of eight or four hours can be set. For the adaptive charge curve, this determines

the maximum absorption time.

Storage voltage, Repeated Absorption Time, Absorption Repeat Interval

See Section 2. Not adjustable with DIP switches.

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