Grove toucan 1010, Руководство по обслуживанию

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55
Models
Revision 02-2000
Toucan 1010
5.22 Battery discharge indicator
setting
A battery discharge indicator and hourmeter is
fitted on the upper control box.
A serie of 10 coloured LEDs provides information on
battery discharge.
As the battery discharges, the green LEDs (5) followed
by the yellow LEDs (3) light up in succession from the
right to the left.
When a red LED flashes, the battery has reached a
70% discharge depth : the machine must be driven to
a charging station to recharge the battery.
When both red LEDs flash in alternance, the battery
is discharged at 80% of its capacity and power supply
to the work platform is automatically cut off : the
battery must imperatively be recharged (a push button
resets the power supply to enable to machine to reach
the charging station).
The state of discharge of the battery is determined by
comparison of the battery voltage when the work
platform is operating at a pre-determined reference
voltage, then by integration of the period of time during
which the battery voltage is below the reference
voltage.
The most significant function of the discharge indicator
is to cut off the electrical circuit when the battery is
80% discharged, thus protecting the battery.
The power cut threshold depends from the battery
capacity and from the discharge conditions to which
the battery is submitted. This threshold can be adjusted
using the potentiometer at the back of the indicator,
where a scale from
1 to 9 allows precise setting.
The potentionmeter is set depending on the capacity
of the battery for "normal" discharge conditions.
In certain operating cases, these discharge conditions
are not respected, therefore making it necessary to
adjust the potentiometer.
For example, in quick discharge conditions, the power
cut will occur when the battery is still charged. To
adjust power cut threshold, proceed as follows :
- Measure battery electrolyte specific gravity
when the power cut occurs (both red LEDs flash
in alternance).
- Set the power cut threshold using the
potentiometer knowing that each number
corrects the battery specific gravity by 0.020
points.
For example, if the potentiometer is set on
number 2 and electrolyte specific gravity is
1,170 kg/l when the power was cut off :
- Specific gravity will be 1,150 kg/l on the next
discharge cycle if the setting is modified to
number
1 .
- Specific gravity will be 1,190 kg/l on the next
discharge cycle if the setting is modified to
number
3 .
"LED" battery
discharge indicator
Hourmeter
Potentiometer
Battery 280 Ah :
Battery 560 Ah :
MAINTENANCE 5 5