9
ENGLISH
BATTERY WIRING INSTRUCTIONS
APPROVED BATTERY MODELS:
-
Yuasa NPL series
-
Powersonic GB series
-
ABT TM series
-
Enersys VE series
-
Effekta BTL series
-
Long GB series.
It is advised to secure batteries with a (low resistance, gG curve) fuse, chosen according
to maximum current.
The battery temperature sensor shall be placed as close as possible to batteries, but it
does not need to be in contact with them. For example, it may be fixed on the battery
cables.
The PS 6640 checks the battery resistance (including connections) every 4 hours.
The fault threshold resistance value is either 32 mΩ ±10% if the jumper is set to the ‘75’
position or 48 mΩ ±10% if set to the ‘50’ position. Exceeding this threshold is signaled
as a battery fault: batteries will not have the required backup duration in case of mains
power cut.
To avoid possible false fault indications, use battery cables as short as possible and with
large cross sections (35 mm² max).
Approximately, the resistance per metre of a cable (with two copper wires) is:
-
3.6 mΩ/m (10 mm² section)
-
2.3 mΩ/m (16 mm² section)
-
1.5 mΩ/m (25 mm² section)
-
1.1 mΩ/m (35 mm² section).
E
xAMPlE
:
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A
1.5
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A
10
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-
sEcTION
Is
5.4
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1.5
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wITh
A
25
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-
sEcTION
AllOw
cORREcT
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wITh
All
REcOMMENdEd
bATTERIEs
.
T
hE
bATTERy
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M
Ω. T
hE
cONNEcTIONs
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cRIMPINg
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PROPERly
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ORdER
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lOwEsT
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.
