Alpha Technologies Cordex CXCRF 48-300W - Manual (Page 29)

0300072-J0 RevA Page 25 of 46
Battery (only for stand-alone systems)
WARNING!
The batteries must be installed by qualified personnel trained in the safe use of high-energy
power supplies and batteries. Refer to product safety information.
WARNING!
The external battery MUST be protected according to the system power and the installed
cross-section of the cables. The fuse or disconnecting device must be capable of interrupting
the current in the event of a short-circuit. The short-circuit current of the batteries is specified
by the manufacturer.
Shock hazard: all metal parts of batteries are live and so there is a danger of injury from
electric shock and of accidental short circuit. Touch the battery on the insulated part only.
Be careful with non-insulated tools, bracelets, watches and rings.
Explosion hazard: regardless of service conditions, hydrogen gas can escape from the
pressure relief valves. Installation in hermetically sealed enclosure is therefore prohibited.
CAUTION!
The short circuit current of the batteries must be lower than 1500A. It is recommended to place
a fuse or disconnect device close to the batteries. This device must be capable of interrupting
the current in the event of a short-circuit.
CAUTION
CAUTION! Before plugging and unplugging the battery connector, the user should pull the
battery circuit breaker and check whether the LVD is non-active (open) to avoid damaging the
battery connector contacts.
Please also note the following:
1. Use new batteries when installing a new rectifier system. Verify they are all the same battery type with
identical date codes.
2. The battery string must be 48Vdc nominal.
3. If you are making your own battery wiring harness, use up to 4mm² cables.
4. The maximum capacity of the battery is limited to 62Ah (or 1500A short-circuit current).
Please observe the following procedure:
1. Number the batteries from 1 to 4 with labels or tape.
2. Coat the battery terminals with battery corrosion inhibitor.
3. Wire the batteries as shown in Figure 25. If used, install the in-line fuse.
4. Pull (open) the battery circuit breaker at the distribution unit and ensure that the LVD is open and the
“LVD OK” indicator is off (Figure 25).