System-Manager TAROM | 716148
page 12
V09_45A
modules will be free of voltage and current so the chances of damage to the System-Manager or injury to the installer is
greatly reduced.
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Solar modules must in no case be short circuited to zero out the voltage from the PV array! Spark
development can damage wiring, connections, cause fire, or even damage electronics due to the high spikes
of current!
•
Only use well-isolated tools!
•
Never touch bare cable ends! High DC voltage can be present and is dangerous!
•
Insulate each bare cable end with tape or other non-conducting material if it is not to be connected
immediately!
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Work only on dry ground! Components (solar module, cables etc.) must not be wet or moist during installation!
•
Pay attention to the right polarisation during cabling! Double check with volt meter in case something was
labelled wrong or connected backwards by someone else.
The battery stores a substantial quantity of energy that may be set free in a dramatic and dangerous way during a short
circuit, and the resulting heat and sparks may evoke fire. Therefore, it is indispensable to install a safety fuse directly on
the battery pole. This fuse insures the safety of the cables between System-Manager and battery.
Hint: For isolated systems, it is not necessary, common or even permitted by some countries’ laws to ground-connect
the components (e. g. DIN 57100 part 410). For further instructions, please see Safety Measures (chapter 6.6,
page 13)
6.4 Installation And Operation
It is absolutely necessary to adhere to all our General Safety Instructions (chapter 1.3, page 3 ). To guarantee a
faultless working of the System-Manager, it is necessary to follow the chronological sequence described in the following
chapters.
6.4.1 Connecting The Battery Bank To The System-Manager
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open the safety lid of the System-Manager and remove both safety fuses .
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Lay both battery cables (B+, B-) between the System-Manager and battery bank in parallel.
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Insert the battery cable bare ends to the System-Manager’s battery connection terminals (the symbol shows a
rectangular battery with + and – indicators) and tighten securely with a proper slot screwdriver.
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Pay attention to the right polarity and make sure the battery cables have been labelled and connected
correctly.
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Fix a fuseholder block for an external safety fuse ( not included ) for the battery cable near the battery’s pole
with a short length of battery cable: DO NOT INSTALL THE SAFETY FUSE YET!
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Connect battery cable B+ to the battery’s positive pole.
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Connect battery connecting cable B- to the fuseholder block at the battery’s negative pole
⇒
Install external safety fuse on the battery pole, and double verify that the battery voltage now appears at the System-
Manager’s battery connection terminals, in the right polarity.
⇒
Install either one of the two safety fuses in the System-Manager. Now the System-Manager should start operation.
6.4.2 Connecting The Solar PV Module Array To The System-Manager
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Insert the module array’s M+ and M- bare wires into the System-Manager’s PV terminals (labelled with a
symbol of a slanted PV module) and tighten the screws securely. Pay attention to the right polarity.
•
Remember the + and – terminals are shorted to each other internally by the System-Manager to regulate
current. Therefore, it is IMPORTANT to connect ONLY solar PV modules as charging energy source. NO
grid-operated battery charging or DC power devices, diesel sets, or wind generators should be connected, as
these will be shorted out and severe damage to these devices and the System-Manager can result.
6.4.3 Connecting The Loads
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Protect each load circuit by a safety fuse
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Disconnect all loads before joining the load cables in order to prevent spark development which may damage
sensitive loads.
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Connect the main load cables to the System-Manager’s Load terminals (labelled with a round light bulb) and
securely tighten the screws. Pay attention to the right polarity!
Connect any vital urgent loads that must never be disconnected by the System-Manager (e.g. emergency light, radio link)
directly to the battery! Note that there is increased risk of damaging discharge to the battery since the System-Manager
