25
Wiring
WARNING!
If the load equipment is not ready to accept power on the arrival of the
commissioning engineer then ensure that the system output cables are
safely isolated at their ends
Connect the safety earth and any necessary bonding earth cables to
the copper earth screw located on the floor of the equipment below the
power connections. All cabinets in the UPS must be grounded properly.
CAUTION!
The earthing and neutral bonding arrangement must be in accordance
with local and national codes of practice.
3.9 Battery connection
The UPS adopts positive and negative double battery framework, total 30(optional
32/34/36/38/40/42/44/46/48/50) in series. A neutral cable is retrieved from the joint between the
cathode of the 15
th
(16
th
/17
th
/18
th
/19
th
/20
th
/21
th
/22
th
/23
th
/24
th
/25
th
) and the anode of the 16
th
(17
th
/18
th
/19
th
/20
th
/21
th
/22
th
/23
th
/24
th
/25
th
/26
th
) of the batteries. Then the neutral cable, the battery
Positive and the battery negative are connected with the UPS respectively. The battery sets between
the Battery anode and the neutral are called positive batteries and that between neutral and cathode
are called negative ones. The user can choose the capacity and the numbers of the batteries
according to their desire.
