Innovative SR250A Bedienungsanleitung

Specifications are subject to change without notice. No liability accepted for errors or omissions.

Model Codes: SR250A/SR500A/SR750A

SR250D/SR500D/SR750D

SR250L/SR500L/SR750L

SR250P

SR250M

= Standard

= Standard with alarms

= ‘D’ ersion with extra output alarm (LV ersions only

for SR500L and S750L)

= ‘D’ ersion with built-in output diode (24V & abo e)

= for use with OVP input protection units

AC/DC POWER SUPPLY & FLOAT CHARGER

(for lead acid batterie )

SR250A/SR500A/SR750A

User Manual

www.inno ati e.co.nz

Phone: +64 835 0700

Fax: +64 837 3446

NZ Freephone: 0800 654 668

AU Freephone: 1800 148 4 4

Email: info@innovative.co.nz

Specifications are subject to change without notice. No liability accepted for errors or omissions. 2

1. INTRODUCTION

The SR250A-750A range is designed for use as a very accurate AC to DC power supply, or float charger for

lead acid batteries. Note that for float charging the output voltage must be set to approximately 15% above

the nominal battery voltage. This is done as the default voltage for the 12V model but must be specified at

time of order for all higher voltage models.

2. CONNECTIONS

If used as a float charger always connect the positive output of the power supply to the positive terminal of

the battery. The charger may be permanently connected to float charge lead acid batteries but it is essential

to periodically check the electrolyte level of flooded cells as there is always some evaporation.

Where screw/plug in terminals are fitted (eg. SR500A24FXL), and there are two terminals provided for each

polarity, both terminals must be used. This is to ensure that the current rating of the terminal block is not

exceeded.

LED INDICATION

DC OK*

POWER OK*

STANDBY

NORMAL ON ON OFF

STANDBY As above OFF ON

MODE

DC LOW*

OFF ON OFF

MODE

LED INDICATION

POWER OK*

STANDBY

DC PRESENT ON OFF

STANDBY As above ON

DC ABSENT OFF OFF

3. LED INDICATION CODES

3.1 -A Standard ersion

3.2 -D Alarm ersion

CONNECTION LAYOUT

Screw Conn. Output Stud Conn. Output

AC INPUT AC INPUT

+ + - -

DC OUTPUT DC OUTPUT

(+) (-)

*1 POWER OK LED indicates

DC present on output terminals

(either from PSU or battery, if

connected)

*2 DC OK

LED indicates DC output is present, either from PSU or battery (if connected)

*3 POWER OK

LED indicates input power on (unless there is a short circuit on the output)

DC LOW settings as in para. 3.3

Specifications are subject to change without notice. No liability accepted for errors or omissions.

3.3. -L Alarm ersion (with DC high alarm)

DC OK LED: Slow flash: DC LOW Setting : PSU: 0.83 xVnom. Charger: 1.83V/cell

Fast flash: DC HIGH Setting : PSU: 1.2 x Vnom Charger: 2.5V/cell

4. ALARM TERMINAL LAYOUT (for -D & -L*

ersions):

5. INPUT CONNECTIONS FOR DC INPUT MODELS

BROWN : POSITIVE +

BLUE: NEGATIVE -

GREEN/YELLOW: EARTH

6. FG (Frame Ground)

Where provided, this terminal provides a connection to the metal case for an earthing point.

7. STANDBY FUNCTION

Pushing the STANDBY button turns the output of the power supply off. If there is a battery con

nected, the DC OK LED remains on even though the power supply is turned off (except for -P ver-

sions with output diode)

Relay contacts shown in de-energised state (ie when there is a fault condition).

Alarm relays are energised when power supply is operating normally.

No DC HIGH alarm relay fitted on HV versions, eg. SR500L92, SR750L92

DC HIGH *

MAINS FAIL DC OK

COM NC NO COM NC NO COM NC NO FG

Specifications are subject to change without notice. No liability accepted for errors or omissions. 4



Industrial quality AC/DC power supply



Standalone - bench top or fixed mounting



Front panel controls & indication



Suitable for float charging of lead acid batteries



Optional serial communications port, SR250L



Optional relay alarm outputs - model SR250D,P



Conser ati e design for long life



Optional DC input



Precise oltage and current control



Efficient switch mode design



Suitable for parallel operation



Optional temperature compensation for charging



ISO9001 design management system

PHYSICAL

AC Input connector

DC Connections

Enclosure

Dimensions

Weight

Indication LEDs

Alarm relay output

(option)

Standby Mode

ENVIRONMENTAL

Operating

temperature

Storage temperature

Humidity

Cooling

♦ 24 Month Warranty

STANDARDS

EMI

Safety

IEC320 socket

M6 brass stud or plug-in socket with screw

terminals

Zinc plated steel /powder coated lid

150W x 61H x 242D (excl. terminals)

1.7 Kg

Standard: Power OK, Standby

With alarms: DC OK, Power OK, Standby

C - NO - NC changeover rated 1A /50V DC,

32VAC

Turns off DC output of PSU

Input ▪ standard

▪ option

Fusing

O ercurrent Protection

OVP

Thermal Protection

Isolation

Efficiency

Inrush current

Output Power

Output Voltages

Voltage adj. range

Line Regulation

Load Regulation

Noise

Drift

Hold-up time

ELECTRICAL

180-264 or 88-132V, 45-65Hz (internal link

select)

110VDC ( -150) or 220VDC(180-270)

(specify at time of order if DC input required)

Internal input fuse

Constant current limit under overload and

short circuit conditions

Over-voltage protection on output

at ~ 130% of nominal output voltage

Yes, self resetting

1KV DC input - output / earth

> 85%

Soft start circuit

250W

Refer to model table

85 - 115% of Vout

<0.2% over AC input range

<0.4% open circuit to 100% load

<1%

0.03% / °C

15 - 20 ms without battery

0 - 50 °C ambient at full load

De-rate linearly >50 °C to no load @ 70 °C

-10 to 85 °C ambient

0 - 5% relative humidity non-condensing

24V & abo e: natural convection

12V: fan cooled

To CISPR 22 / EN55022 class A

To IEC 50 / EN60 50 / AS/NZS3260

ACCESSORIES SUPPLIED

Mounting feet together with screws

AC power cord 1.5m with IEC320 socket and NZ/Aust plug

Mating screw-terminal plug for alarm outputs

Crimp lugs for stud terminal versions

DC screw terminal plug-in connector for ‘X’ version

Ideal as a Standby Float Charger

for lead acid batteries

incl. SR250D, SR250L, SR250P

Global Solutions Personal Focus

SPECIFICATIONS All specifications are typical at nominal input, full load and at 20°C unless otherwise stated.

Specifications are subject to change without notice. No liability accepted for errors or omissions.

OPTIONS

Temperature

Compensation for

charging

Alarms (SR250D..)

Extra DC Fault Alarm

(SR250L..)

Alarm Relay Contacts

Internal output diode

(SR250P..)

Earth Fault Alarm

(external)

If external surge sup-

pressor fitted

Temperature sensor on 1.7m lead with

adhesive pad: -4mV / °C / cell ±10%

Order Code: +TEMPCO



Mains/PSU fail (or PSU in standby mode)



DC low (Battery low or PSU low) - set at

2% of nominal voltage.

Special version available: Battery low

alarm operates when mains power is on,

order code: SFMCT-OA 1.1

Alarm level to be specified at time of order,

eg. DC high

C - NO - NC full changeover rated 1A /50V

DC, 32VAC

Incl. alarms & output diode for N+1 redun-

dancy, internal diode not available for 12V

models.

Detects leakage to earth of DC output and

provides relay output

Order Code: +ALARM/EFDM (20-60V)

Replace end suffix –L with –M (230VAC input

version) internal MOV is rated at higher volt-

age than external surge suppressor

MODELS

Power Supply Battery Charger

Adjustable

range (V)

Output

Volts

(factory default)

Output

Current (A)

(continuous)

Output

Volts*

(Charging)

Output

Current (A)

(Charging)

SR250A12 13.8 18.1 @13.8V 13.8 18.1 11-14

SR250A24 24 10.4 27.6 .0 22-28

SR250A30 30 8.3 34.5 7.2 28-36

SR250A36 36 6. 41.4 6.0 34-43

SR250A48 48 5.2 55.2 4.5 45-57

SR250A7.5 7.5 20 6. 20 6.8-8

SR250A60 60 4.1 6 .0 3.6 54-66

STANDARD MODEL TABLE

* Please specify on ordering if the

unit is to be used for float charging

(except for 12V model which is set

at 13.8V by default).

MODEL IDENTIFICATION CODES

SR250A12 T F S L-485

L = 230V AC + switch Blank = 230V AC no switch

U = 110V AC + switch G = 110V AC no switch

H = 110V DC + switch J = 110V DC no switch

M = 230V AC + switch +

300V MOV

(to be used with IEOVPHVAC)

K = motorhome version (please refer to separate data sheet)

Input voltage and front

panel standby switch

S = Stud X = Plug in /screw terminal block

F = Fan Blank = No fan

T = Yes Blank = No

12, 24, 30, 36, 48, 60

Output DC Connector type:

Fan cooled:

Temperature Compensation

DC output: Nominal voltage

A = Standard PSU

D = Standard with alarms

L = D version with extra DC fault alarm and optional comms port

P = D with output diode for parallel redundancy (>24V only)

Function

Optional communication

port for SR250L versions

Power 250W

250 Watt

AC/DC Stand Alone Power Supply/Float Charger

OPTIONAL COMMUNICATION PORT - SR250L….

• Includes three relay alarm outputs

• Serial (RS232 or RS485) or ethernet port

• SNMP protocol or ASCII code

• Optional MODBUS protocol converter for use with RS485

• Example of code: SR250L12FSL-LAN+ (for SNMP

model)

OUTPUT

Optional Protocol

Converter

+PROTOCONMB

Optional temperature

compensation probe

incl. SR250D, SR250L, SR250P

485 = RS485 232 = RS232

LAN + = Ethernet (SNMP) LAN = Ethernet (ASCII)

Specifications are subject to change without notice. No liability accepted for errors or omissions. 6



Industrial quality AC/DC power supply



Standalone - bench top or fixed mounting



Front panel controls & indication



Suitable for float charging of lead acid batteries



Suitable for parallel operation



Conser ati e design for long life



Precise oltage and current control



Optional temperature compensation for charging



Optional relay alarm outputs



Optional DC input



Optional communications port: RS232, RS485 or

ethernet



Optional protocols a ailable: Modbus, SNMP or

ASCII code

♦ 24 Month Warranty

STANDARDS

EMI

Safety

Input ▪ standard

▪ option

Fusing

O erload protection

Isolation

O er oltage protection

Efficiency

Inrush current

Output power

Output oltage

Line regulation

Load regulation

Noise

Drift

Hold-up time

Thermal protection

Parallel operation

- higher power

- N+1 redundancy

ELECTRICAL

180V - 264V, 45-65Hz

88V - 132VAC 45-65Hz

Internal input fuse

Constant current limit under overload and

short circuit conditions (except DC input ver-

sions which have primary current limit)

1KV DC input - output / earth

130% of nominal output voltage

> 85%

Soft start circuit

500W

Refer to model table

<0.2% over AC input range

<0.4% open circuit to 100% load

<1%

0.03% / °C

15 - 20 ms without battery

Yes, self resetting

Yes

Addition of external output diodes optional

Use SR500D… with external output diodes

ENVIRONMENTAL

Operating

temperature

Storage temperature

Humidity

Cooling

0 to + 50 °C ambient at full load

De-rate linearly >50 °C to no load @ 70 °C

-10 to 85 °C ambient

0 - 5% relative humidity non-condensing

Fan cooled

To CISPR 22 / EN55022 class A

To IEC 50 / EN60 50 / AS/NZS3260

ACCESSORIES SUPPLIED

Mounting feet together with screws

AC power cord 1.5m with IEC320 socket and NZ/Aust plug

Mating screw-terminal plug for alarm outputs

Crimp lugs for stud terminal versions

DC screw terminal plug-in connector for ‘X’ version

Ideal as a Standby Float Charger

for lead acid batteries

PHYSICAL

AC input connector

DC connections

Alarm connections

Enclosure

Dimensions

Weight

Indication LEDs

Standby switch

IEC320 inlet socket

M8 brass stud or plug in/screw terminal block

Plug-in screw terminal block

Powder coated steel

225W x 70H x 304D mm (excl. terminals)

4.3 Kg

Standard: Power OK, Standby

With alarms: DC OK, Power OK, Standby

Turns off DC output of PSU

incl. SR500D, SR500L

Optional internal V/I

meter shown

Global Solutions Personal Focus

SPECIFICATIONS All specifications are typical at nominal input, full load and at 20°C unless otherwise stated.

Specifications are subject to change without notice. No liability accepted for errors or omissions.

STANDARD MODEL TABLE

OPTIONS

Temperature

compensation for

charging

Alarms - SR500D..

- SR500L..

Alarm contacts

DC Input

Earth fault alarm

(external to PSU))

Temperature sensor on 1.7m lead with

adhesive pad: -4mV / °C / cell ±10%

Order Code: +TEMPCO



Mains fail (or PSU in standby mode)



DC low (Battery low or PSU low)

- Charger: set at 1.83V/cell

- PSU: set at 83% V out

• As SR500D.. + DC high alarm (NB: no

alarm relay fitted on HV versions, only

LED indication)

C - NO - NC changeover rated 1A /50V DC,

32VAC

110VDC ( -150) or 220VDC (180-270)

Please note that an external fuse or MCB

must be fitted on the output for short circuit

protection.

Detects leakage to earth of DC output and

provides relay output

Code: +ALARM/EFDM (20-60V)

+ALARM/EFDH (61-150V)

* Please specify on ordering that

unit is to be used for float charging

(except for 12V model which is set

at 13.8V by default).

OPTIONS

Communications Port

Internal V/I meter

Mounting option :

19”rack mount

Wall mount enclosure

Choice of RS485, RS232, ethernet (SNMP or

ASCII)

Available on SR500L… models

Add code: +INT-METER

2U sub rack available, Code: SR-RM2U

Optional V/I meter, Code: SR-METER

PSU may be fitted into enclosure with MCBs

and terminals. Code: SEC-SR

500 Watt

AC/DC Stand Alone Power Supply/Float Charger

incl. SR500D, SR500L

MODELS

Power Supply Battery Charger

Output

Volts

(factory default)

Output

Current (A)

Output

Volts*

(Charging)

Output

Current (A)

(Charging)

SR500A12 13.8

36.2

(41.6 @ 12V) 13.8 36.2 11-14

SR500A24 24 20.8 27.6 18.2 22- 2

SR500A30 30 16.6 34.5 14.5 28-36

SR500A36 36 13.8 41.4 12.0 34-43

SR500A48 48 10.4 55.2 .1 45-57

SR500A91 6 5.2 110 4.5 0-115

SR500A92 108 4.6 124 4.0 100-130

SR500A93 120 4.1 138 3.6 110-145

Adjustable

range (V)

MODEL IDENTIFICATION CODES

SR500A 12 T F S L-LAN

LAN = ethernet (ASCII) LAN+ = ethernet (SNMP) 232 = RS232

485 = RS485 No = blank

Input voltage and front panel

standby switch:

Output DC Connector type:

Cooling

Temperature Compensation

DC output: Nominal voltage

A = Standard PSU/Float Charger

D = A version with alarms

L = D version with DC high alarm and optional comms port

Function

Power 500W

Optional communication port

for SR500L versions

Rear view of SR500D….or SR500L...

with alarm contacts and no commu-

nication port option

L = 230V AC + switch Blank = 230V AC no switch

U = 110V AC + switch G = 110V AC no switch

H = 110V DC + switch J = 110V DC no switch

S = Stud X = Plug in /screw terminal block

F = Fan

T = Yes Blank = No

12, 24, 36, 48, 91 = 6V, 92 = 108V, 93 = 120V

Specifications are subject to change without notice. No liability accepted for errors or omissions. 8

incl. SR750D, SR750L

Global Solutions Personal Focus



Industrial quality AC/DC power supply



Standalone - bench top or fixed mounting



Front panel controls & indication



Suitable for float charging of lead acid batteries



Suitable for parallel operation



Conser ati e design for long life



Precise oltage and current control



Optional temperature compensation for charging



Optional relay alarm outputs



Optional DC input



Optional communications port: RS232, RS485 or

ethernet



Optional protocols a ailable: Modbus, SNMP or

ASCII code

♦ 24 Month Warranty

STANDARDS

EMI

Safety

Input ▪ standard

▪ option

Fusing

O erload protection

Isolation

O er oltage protection

Efficiency

Inrush current

Output power

Output oltage

Line regulation

Load regulation

Noise

Drift

Hold-up time

Thermal protection

Parallel operation

- higher power

- N+1 redundancy

ELECTRICAL

230VAC (180 - 264), 45-65Hz

110VAC (88 -132), 45-65Hz

Internal input fuse

Constant current limit under overload and

short circuit conditions (except DC input ver-

sions which have primary current limit)

1KV DC input - output / earth

130% of nominal output voltage

> 85%

Soft start circuit

750W

Refer to model table

<0.2% over AC input range

<0.4% open circuit to 100% load

<1%

0.03% / °C

15 - 20 ms without battery

Yes, self resetting

Yes

Addition of external output diodes optional

Use SR750D… with external output diodes

ENVIRONMENTAL

Operating

temperature

Storage temperature

Humidity

Cooling

0 to + 50 °C ambient at full load

De-rate linearly >50 °C to no load @ 70 °C

-10 to 85 °C ambient

0 - 5% relative humidity non-condensing

Fan cooled

To CISPR 22 / EN55022 class A

To IEC 50 / EN60 50 / AS/NZS3260

ACCESSORIES SUPPLIED

Mounting feet together with screws

AC power cord 1.5m with IEC320 socket and NZ/Aust plug

Mating screw-terminal plug for alarm outputs

Crimp lugs for stud terminal versions

DC screw terminal plug-in connector for ‘X’ version

Ideal as a Standby Float Charger

for lead acid batteries

PHYSICAL

AC input connector

DC connections

Alarm connections

Enclosure

Dimensions

Weight

Indication LEDs

Standby switch

IEC320 inlet socket

M8 brass stud or plug in/screw terminal block

Plug-in screw terminal block

Powder coated steel

225W x 70H x 304D mm (excl. terminals)

4.3 Kg

Standard: Power OK, Standby

With alarms: DC OK, Power OK, Standby

Turns off DC output of PSU

Optional internal V/I

meter shown

SPECIFICATIONS All specifications are typical at nominal input, full load and at 20°C unless otherwise stated.

Specifications are subject to change without notice. No liability accepted for errors or omissions.

MODELS

Power Supply Battery Charger

Output

Volts

(factory default)

Output

Current (A)

(continuous)

Output

Volts*

(Charging)

Output

Current (A)

(Charging)

SR750A12 13.8

(54 @ 11-14V) 13.8 54 11-14

SR750A24 24 31.2 27.6 27 22- 2

SR750A30 30 25 34.5 21.7 28-36

SR750A36 36 20.8 41.4 18 34-43

SR750A48 48 15.6 55.2 13.6 45-57

SR750A91 6 7.8 110 6.8 0-115

SR750A92 108 6. 124 6.0 100-130

SR750A93 120 6.2 138 5.4 110-145

Adjustable

range (V)

50 Watt

AC/DC Stand Alone Power Supply/Float Charger

incl. SR750D, SR750L

STANDARD MODEL TABLE

* Please specify on ordering that

unit is to be used for float charging

(except for 12V model which is set

at 13.8V by default).

Rear view of SR750D…or SR750L...

with alarm contacts and no commu-

nication port option

OPTIONS

Temperature

compensation for

charging

Alarms - SR750D..

- SR750L..

Alarm contacts

DC Input

Earth fault alarm

(external to PSU))

Temperature sensor on 1.7m lead with

adhesive pad: -4mV / °C / cell ±10%

Order Code: +TEMPCO



Mains fail (or PSU in standby mode)



DC low (Battery low or PSU low)

- Charger: set at 1.83V/cell

- PSU: set at 83% V out

• As SR750D.. + DC high alarm (NB: no

alarm relay fitted on HV versions, only

LED indication)

C - NO - NC changeover rated 1A /50V DC,

32VAC

110VDC ( -150) or 220VDC (180-270)

Please note that an external fuse or MCB

must be fitted on the output for short circuit

protection.

Detects leakage to earth of DC output and

provides relay output

Code: +ALARM/EFDM (20-60V)

+ALARM/EFDH (61-150V)

OPTIONS (continued)

Communications port

Internal V/I meter

Mounting option :

19”rack mount

Wall mount enclosure

Choice of RS485, RS232, ethernet (SNMP or

ASCII)

Available on SR750L… models

Add code: +INT-METER

2U sub rack available, Code: SR-RM2U

Optional V/I meter, Code: SR-METER

PSU may be fitted into enclosure with MCBs

and terminals. Code: SEC-SR

MODEL IDENTIFICATION CODES

SR750A 12 T F S L-LAN

LAN = ethernet (ASCII) LAN+ = ethernet (SNMP) 232 = RS232

485 = RS485 No = blank

L = 230V AC + switch Blank = 230V AC no switch

U = 110V AC + switch G = 110V AC no switch

H = 110V DC + switch J = 110V DC no switch

Input voltage and front

panel standby switch:

S = Stud X = Plug in /screw terminal block

Output DC Connector type:

F = Fan

Cooling

T = Yes Blank = No

Temperature Compensation

12, 24, 36, 48, 91 = 6V, 92 = 108V, 93 = 120V

DC output: Nominal voltage

A = Standard PSU/Float Charger

D = A version with alarms

L = D version with DC high alarm and optional comms port

Function

Power 750W

Optional communication port

for SR750L versions

Specifications are subject to change without notice. No liability accepted for errors or omissions. 10

Two or more SRxxxA, SRxxxD or SRxxxL power supplies may be connected in parallel for increased power or parallel

redundancy. Figure 1 below shows two SR xxx D units connected with external diodes. It is essential that the wiring

from each unit to the load is kept identical for equal power sharing particularly when diodes are not used.

Diodes can be fitted inside some power supplies (see models listed below). The SRxxxP series identifies when an in-

ternal diode is fitted in the power supply. Figure 2 shows two SRxxxP units connected in parallel.

CONNECTION FOR PARALLEL REDUNDANCY

INTERNAL diodes (in negative leg) can be fitted

to the following models only:

100W: SR100P24, SR100P36,

SR100P48

250W: SR250P24, SR250P30,

SR250P36, SR250P48, SR250P60

All other models have diodes external to the

power supply, eg fitted into a 2U rack as shown

in the photo to the right. 2U rack with 2 x SR250D12 power

supplies and decoupling diodes on

heatsink plus V/I meter

SRxxx D

ALARMS

LOAD

SRxxx P

ALARMS

LOAD

Fig. 1: Two SRxxx D with external diodes Fig. 2: Two SRxxx P connected in parallel

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