Victron energy OPzS Operating Instructions

OPERATING INSTRUCTIONS
for stationary vented lead-acid
OPzS SOLAR batteries
Bat. Type: _________________________
Assembled by: _____________________
Date: _____________________________
Start-up by:________________________
Date:_____________________________
Observe operating instructions and affix close
within sight of the battery! Work on batteries
only under instructions of skilled personel!
Smoking prohibited! Do not expose battery to
open fame, glowing fire or sparks as explosion
and fire hazard exists!
When working on batteries wear protective
glasses and clothing!
Explosion and fire hazard! Avoid short circuits!
Caution! Metal parts of the battery cells are
always live, therefore do not place items or
tools on the battery!
Electrolyte is strongly corrosive!
Monoblock batteries / cells are very heavy!
Ensure secure installation! Only use suitable
transport equipment!
Dangerous voltage!
Acid splashes in the eyes or on the skin must
be washed out or off with plenty of water.
Then see a doctor immediately. Acid on
clothing should be washed out with water!
Safety requirements according to EN 50272-3
Non-compliance with operating
instructions, repairs made with other
than original parts, use of additives
for the electrolyte (alleged "enhancing
agents") render the warranty null and
void.
1. Commissioning
a) Filled and charged batteries
Before commissioning all blocks must be
inspected for mechanical damage, cells
must be connected with the correct
polarity and connectors firmly seated.
The following torque apply for M10 screw
connectors is:
20 ± 1 Nm
If necessary the terminal covers must be
put on. Check the electroiyte level in all
cells. If necessary top up to maximum
level with purified water as under DIN
43530 Part 4. Before putting the battery
in operation, plastic transport vent caps
must be removed and replaced with
ceramic cell plugs.
With charger off and loads isolated
connect battery to the direct current
power supplies maintaining correct
polarity (positive terminal to positive
post).
Switch on the charger and charge as
under section 2.2.
b) Dry charged (DC) batteries
Instructions for the initial charging of a
dry charged stationary OPzS and
SOLAR (TOPzS) batteries:
- Unscrew the sealed vent plugs and
fill the cells with pure dilute
sulphuric acid, specific gravity 1,230
0,01kg/1 read at 20 (68 F), up to
about 25 mm below top of lid for
SPgBG multi-block hard rubber
containers and 50 mm below of lid
for OPzS translucent containers or
max level marked on the label. The
temperature of the filling acid should
be between 10° C and 25° C (50 - 77
F).
- Insert the original plastic vent plug
with Removed sealing foil on the top
or place the special ceramic vent
plug.
- Start charging for not less than 2
and not more than 12 hours elapsed
after the last cell has been filled with
the acid.
- Apply the 0,5 x 110(5A/100Ah)
current.
- Charge for 8 hours and then keep
the battery on open circuit for 1-2
hours.
- Continue the charging for a few
hours, until the battery is fully
charged, i.e. until constant voltage
and constant specific gravity have
been reached. The specific gravity
of the acid in a fully charged celi is
1,240 0,01 kg/I read at 20° C (68 F),
If during the charging the
temperature of the acid exceeds
55° C (131 F) reduce the charging
current by 50%.
- 0,5 h after charging discharge the
battery at 10 hour rate of current
until the cell voltage drops to
average value 1.80 Volts. Allowable
minimum voltage of a single cell is
1,70V.
- Recharge the battery according to
the operating instructions 2.2.
- 24 hours after recharging adjust
electrolyte level to the "max" mark
on the label.
Activation and test results must be
kept as part of battery
documentation. Non-compliance
with this request renders the
warranty null and void.
2. Operation
For the operation of stationary battery,
installations EN 50272-2 apply
2.1 Discharging
Never allow the final discharge voltage of
the battery to drop below that assigned
for the discharge current. Charge
immediately after discharge as well as
partial discharge. Recommended DOD
(Depth Of Discharge) for normal
operating is up to 80% of CN.
2.2 Charging
All charging procedures with their limit
values may be employed as stated
below:
DIN 41773 (lU characteristic)
DIN 41774 (W characteristic)
DIN 41776 (I characteristic).
Depending on charger type and charging
characteristic alternating currents flow
through the battery superimposing onto
the direct current. These alternating
currents and the reaction of the loads
lead to an additional warming of the
battery and strain on the electrodes with
possible resulting damage (see 2.5).
Depending on the system at hand,
charging may be carried out under the
following modes:
a) Stand-by parallel operation and
floating operation.
Here the load, direct current and battery
are continuously connected in parallel.
There by the charging voltage is at the
same time the operating voltage of the
system. With stand-by-parallel operation
the direct current is at any time capable
of supplying the maximum load current
and the battery charging current. The
battery only supplies current when the
direct current source fails. The charge
volt age should be set at 2,23 V +/-1% x
number of cells measured at the
battery's terminals. To reduce the
recharging time a charging stage can be
applied in which the charging voltage is
2,35 to 2,4 V x
number of cells (stand-by parallel
operation with recharging stage).
Automatic changeover to the charging
voltage of 2,23 V+/- 1% x number of cells
follows after few hours on the voltage
2,35-2,4 V x number of cells. With the
floating operation the direct current
source is not able to supply the
maximum load current at all times.
The load current intermit tently
supersedes the nominal current of the
direct current source. During this period
the battery supplies power. It is not fully
charged at all times. Therefore,
depending on the load the charge
voltage must be set at 2.23 to 2.30 V x
number of cells.
b) Switch mode operation
When charging the battery is separated
from the load. Towards the end of the
charging process the charge voltage of
the battery is 2,6 - 2,75 V/cell. The
charging process and parameters must
be monitored (see Sections 2.4, 2.5 and
2.6).
On reaching a fully charged state the
charging process must be stopped or
switched to float charge as under Section
2.3.