2
No installation and handling facing down
禁止底面朝上安装与搬运
BOTTOM
Donn't carry and install
upside down
BOTTOM
Figure 2-5 Wrong installing and carrying direction
2.4 Cable Connection
Danger
Danger
1. Switch off all MCBs before the electrical connection.
2. Only the qualified personnel can do the mains cable connection.
3. Before electrical connection, make sure all the AC MCBs of the power system are
switched off, the AC 230/400V 20A double pole C type MCB is recommended.
4. There is a dangerous voltage in the primary circuit, disconnect the power supply before
maintenance.
The configuration and connection position of NetSure 2100 A31-S2 are shown in Figure
2-6.
N
L
M6 grounding stud
AC input terminal L
AC input terminal N
Controller
Expansion board of dry contact
Load output route 1 MCB
Battery MCB
NetSure 2100 A31-S2 front view
Rectifiers 1 ~ 3
Battery input terminal
Temp. cable input port
NetSure 2100 A31-S2 rear view
Load output route 2 MCB
Load output route 3 MCB
Load output route 4 MCB
Load output route 4 MCB
Load output route 3 MCB
Load output route 2 MCB
Load output route 1 MCB
Figure 2-6 NetSure 2100 A31-S2 layout
The configuration and connection position of NetSure 2100 A31-S3 are shown in Figure
2-7.
N
L
NetSure 2100 A31-S3 front view
DI/DO/RS485 port
NetSure 2100 A31-S3 rear view
AC input terminal N
M6 grounding stud
AC input terminal L
Rectifiers 1 ~ 3
Controller
Load output route 1 MCB
Battery MCB
Load output route 2 MCB
Load output route 3 MCB
Load output route 4 MCB
Load output route 4 MCB
Load output route 3 MCB
Load output route 2 MCB
Load output route 1 MCB
Battery input terminal
Temp. cable input port
Figure 2-7 NetSure 2100 A31-S3 layout
2.4.1 Connecting Earth Cable
A M6 grounding stud is reserved on the mounting bracket. The grounding cable is
yellow-green double-color cable, with cable specification up to 10mm
2
. The cable ends are
crimped to the OT terminals. The maximum OT10-6 terminals are used. Connect one end
of the grounding cable to the M6 ground stud (see Figure 2-6, Figure 2-7) and the other
end to the grounding bar of the 19-inch rack system.
2.4.2 Connecting AC Input Cables
1. The routing method of the AC input cables is 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 2-8. Terminal connection method: Using a flat-blade screwdriver, press the terminal
clamp as shown in Figure 2-8, insert the cable end into the corresponding port, and loosen
the screwdriver to press the cable end.
N
L
-
+
AC input terminal N
AC input terminal L
Figure 2-8 Illutration of connection terminal
2.4.3 Connecting Load Cables
The power system can be connected with four routes of load respectively controlled by
four MCBs, as shown in Figure 2-6, Figure 2-7. Connect the negative load cable to the
corresponding load '-' and then connect the positive load cable to the corresponding load
'+' (see Figure 2-9). For the terminal connection method, please refer to
2.4.2 Connecting
AC Input Cables
.
N
L
-
+
Figure 2-9 Illutration of load connection terminal
