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6
Chapter 2 Installation
Connecting AC Input Cables
The routing method of the AC input cables is the same as that of the earth cables. Connect the live line (L) and neutral
line (N) of the AC input cables respectively to the lower terminals of the power system AC input terminal L and AC input
terminal N, as shown in Figure 2-3.
Connecting DC Cables
The power system can be connected with three route of loads respectively controlled by three MCBs, as shown in
Figure 2-3. Connect the negative load cable to the corresponding load '-' and then connect the positive load cable to
the corresponding load '+' (see Figure 2-3).
Load MCB
Load MCB 1 ~ Load MCB 3
Note
When the mains failure, the battery supplies power to the load. when the battery voltage drops to 43.2V, the power system will
automatically switch off all the loads to avoid battery over-discharge.
2.4.2 Connecting Battery Cable
The power system can be accessed in one group of batteries controlled by a battery MCB, as shown in Figure 2-3.
During connection, connect the negative battery cable to the battery terminal '-' and then connect the positive battery
cable to the battery terminal '+' (see Figure 2-3).
2.4.3 Connecting Communication Cable
Communication port
The power system provides two kinds of communication ports, including dry contact alarm output port and RS232 port,
as shown in Figure 2-4.
Connecting dry contact output port
The controller is configured with two pairs of alarm dry contact output (DO1 ~ DO2) as standard configuration and four
expanded outputs (DO3 ~ DO6) as optional. The dry contact that generating corresponding alarm is normally closed,
users can connect according to actual needs. When wiring, take out the female of the 4-pin phoenix terminal bound at
AC input terminal L
Grounding terminal
AC input terminal N
Figure 2-3 Illustration of connection terminal
Table 2-5 Specification of load MCB and cable
Load MCB capacity
20A × 1, 10A × 2
Figure 2-4 Illustration of controller front panel
SiteWeb2 Graphic Configuration Tool Operation Manual
Load output route 1-
Load output route 2-
Load output route 3-
Battery-
Battery+
Load output route 3+
Load output route 2+
Load output route 1+
Load cable CSA
The total output capacity of the load should
≤ 10mm
2
not be greater than the corresponding MCB
rated current
Remark
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