Bosch | User manual | Addendum to manual PLN-24CH12 / PRS-48CH12

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Bosch | User manual | Addendum to manual PLN-24CH12 / PRS-48CH12 | Manualzz

Security Systems

Addendum to manual

PLN-24CH12 / PRS-48CH12

1 General

This addendum to the manual of the PLN-24CH12 and PRS-48CH12 chargers contains important information for proper installation and operation.

2 Battery capacity

It is not recommended to use batteries with a capacity of less than 100

Ah. Smaller batteries have a relatively high initial internal resistance

(R i

), that may exceed the threshold for supervision of R i

and cause a fault. Also, when batteries age, their capacity decreases and their R i goes up.

3 R

i

-monitoring

The PLN-24CH12 and PRS-48CH12 battery chargers have built-in R i monitoring. This is important and mandatory for compliance to EN54-4.

It means that the charger monitors the summed resistance of the wiring, fuse, electrical connections and the R i

of the battery. It warns the user when the battery has aged and must be replaced. The R i supervision threshold has been selected such that when the R i

of the battery has increased to the maximum allowed value the backup power system can still power the VACIE.

Because the resistance of the wiring and the connections is incorporated into the measured R i

, it is important that these resistances are very low, otherwise even good batteries will generate a fault. This makes sense because a VACIE can take up to 150 A from the battery and then every 10 mohm will already cause a voltage drop of 1.5 V, limiting the maximum available output power from the VACIE.

4 Wire gauge selection

As installer, you should take into consideration all major contributors to the total resistance, being:

 Battery R i

– typically 5 to 6 mohm per battery, depending on size and make.

 Cables – very dependent on length and gauge.

 Battery fuse – typically 1 to 2 mohms.

 Connections – typically 1 mohm.

The actual values need to be checked with the battery supplier and fuse supplier. Also be aware of possible influences of connections, e.g. pay attention to screw-tightening of connections.

Bosch Security Systems B.V.

PO Box 80002

5600JB Eindhoven

The Netherlands www.boschsecurity.com

13 November 2013

Page 1 of 3

Security Systems

Addendum to manual

PLN-24CH12 / PRS-48CH12

Keep some margin to avoid false positive faults. Stay at least 20% below the selected R i

-limit, because there is some tolerance on the measurement accuracy.

To help you selecting the right cable gauge, two tables are provided with maximum cable lengths per wire gauge for a number of battery types. Use this guideline to determine the needed gauge.

The first table is for 24 V battery systems and the second table is for

48V battery systems. The maximum length is given in cm and depicts the total cable length, i.e. all the wire length from charger to battery, the bridges to connect the batteries in series and the length back to the charger. Five different cable gauges are shown with cross-sectional areas of 6 mm 2 to 35 mm 2 . Then two different jumper settings can be selected for the threshold of the R i

-supervision of the charger, the 50 mohm setting is intended for loads up to 100 A, the 75 mohm setting for loads up to 150 A.

Allow for up to 5 hours for the unit to report a battery fault.

In some cases the maximum resistance is already exceeded, even for zero length cables. This is not allowed and indicated as n.a. (not allowed).

Maximum total cable length to battery and return (cm)

24V Cable gauge 6 mm

2

10 mm

2

16 mm

2

25 mm

2

C20 Brand

105 Ah Long

120 Ah Effekta

120 Ah Fiamm

121 Ah Long

126 Ah Long

130 Ah Yuasa

150 Ah Effekta

150 Ah Fiamm

200 Ah Effekta

200 Ah Fiamm

200 Ah Yuasa

210 Ah Long

Bosch Security Systems B.V.

PO Box 80002

5600JB Eindhoven

The Netherlands www.boschsecurity.com

13 November 2013

Page 2 of 3

35 mm

2

Jumper setting

(mohm)

Type

6FM100G/B

BTL12-120

FG2C007

6FM115G/B

6FM120G/B

NPL130-6IFR

BTL12-150

FG2F009

BTL12-200

FG2M009

NPL200-6

6FM200G/B

50 75 50 75 50 75 50 75 50 75

100A 150A 100A 150A 100A 150A 100A 150A 100A 150A

108 3 181 6 289 9 451 14 632 19

142 37 236 61 378 98 590 153 826 214

188

108

142

83

3

37

314

181

236

139

6

61

502

289

378

222

9

98

785

451

590

347 1099

14

153

632

826

486

19

214

108

142

3

37

181

236

6

61

289

378

9

98

451

590

14

153

632

826

19

214

205 100 342 167 547 267 854 417 1196 583

142 37 236 61 378 98 590 153 826 214

222 117 369 194 591 311 924 486 1293 681

188

175

83

70

314

292

139

117

502

467

222

187

785

729

347 1099

292 1021

486

408

Security Systems

Addendum to manual

PLN-24CH12 / PRS-48CH12

Bosch Security Systems B.V.

PO Box 80002

5600JB Eindhoven

The Netherlands www.boschsecurity.com

13 November 2013

Page 3 of 3

48V Cable gauge 6 mm

2

10 mm

2

16 mm

2

25 mm

2

23 mm

2

Jumper setting

(mohm)

C20 Brand

65 Ah Effekta

Type

BTL12-65

65 Ah Fiamm

65 Ah Fiamm

FG26505

FG26507

65 Ah PowerSonic PS12650GB

65 Ah Yuasa

68 Ah Long

70 Ah ABT

70 Ah Fiamm

70 Ah Fiamm

73 Ah Long

75 Ah ABT

NP65-12

6FM65G/B

TM12-320W

FG27004

FG27007

6FM70G/B

TM12-350W

75 Ah Effekta BTL12-75

75 Ah PowerSonic PS12750GB

78 Ah Yuasa NPL78-12IFR

80 Ah Effekta

80 Ah Fiamm

84 Ah Long

BTL12-80

FG28009

6FM80G/B

90 Ah Effekta

100 Ah Effekta

BTL12-90

BTL12-100

100 Ah Fiamm FG2A007

100 Ah PowerSonic PS121000GB

100 Ah Yuasa

105 Ah Long

120 Ah Effekta

120 Ah Fiamm

121 Ah Long

126 Ah Long

130 Ah Yuasa

150 Ah Effekta

150 Ah Fiamm

200 Ah Effekta

200 Ah Fiamm

200 Ah Yuasa

210 Ah Long

NPL100-12

6FM100G/B

BTL12-120

FG2C007

6FM115G/B

6FM120G/B

NPL130-6IFR

BTL12-150

FG2F009

BTL12-200

FG2M009

NPL200-6

6FM200G/B

50 75 50 75 50 75 50 75 50 75

100A 150A 100A 150A 100A 150A 100A 150A 100A 150A

175 n.a.

292 n.a.

467 n.a.

729 n.a. 1021 n.a.

342 n.a.

569 n.a.

911 n.a.

1424 n.a. 1993 n.a.

342 n.a.

569 n.a.

911 n.a.

1424 n.a. 1993 n.a.

88 n.a.

147 n.a.

236 n.a.

368 n.a. 515 n.a.

208 n.a.

347 n.a.

556 n.a.

868 n.a. 1215 n.a.

108 n.a.

181 n.a.

289 n.a.

451 n.a. 632 n.a.

280 n.a.

467 n.a.

748 n.a.

1168 n.a. 1635 n.a.

235 n.a.

392 n.a.

627 n.a.

979 n.a. 1371 n.a.

335 n.a.

558 n.a.

893 n.a.

1396 n.a. 1954 n.a.

175 n.a.

292 n.a.

467 n.a.

729 n.a. 1021 n.a.

285 n.a.

475 n.a.

760 n.a.

1188 n.a. 1663 n.a.

195 n.a.

325 n.a.

520 n.a.

813 n.a. 1138 n.a.

135 n.a.

225 n.a.

360 n.a.

563 n.a. 788 n.a.

242 n.a.

403 n.a.

644 n.a.

1007 n.a. 1410 n.a.

208 n.a.

347 n.a.

556 n.a.

868 n.a. 1215 n.a.

348 n.a.

581 n.a.

929 n.a.

1451 n.a. 2032 n.a.

175 n.a.

292 n.a.

467 n.a.

729 n.a. 1021 n.a.

228

242

18 381

32 403

31 609

53 644

49 951 76 1332 107

84 1007 132 1410 185

368 158 614 264 982 422 1535 660 2149 924

248 38 414 64 662 102 1035 160 1449 224

308

242

308

98 514 164 822 262 1285 410 1799 574

32 403 53 644 84 1007 132 1410 185

98 514 164 822 262 1285 410 1799 574

402 192 669 319 1071 511 1674 799 2343 1118

242 32 403 53 644 84 1007 132 1410 185

308 98 514 164 822 262 1285 410 1799 574

242

308

32

98

403

514

53

164

644

822

84

262

1007

1285

132 1410

410 1799

185

574

435 225 725 375 1160 600 1813 938 2538 1313

308 98 514 164 822 262 1285 410 1799 574

468 258 781 431 1249 689 1951 1076 2732 1507

402 192 669 319 1071 511 1674 799 2343 1118

375 165 625 275 1000 440 1563 688 2188 963

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