Preparing Cables; Connecting Additional Grounding - Alpha ESS SMILE-B3-PLUS Installation Manual

ELECTRICAL CONNECTION
Position Designation
Battery breaker* of battery pack
1
2 Power button of battery pack
3 BAT+ connection port
BAT- connection port
4
5 BMS Communication connectors
Grid connection port
6
7 Backup connection port ；
8 Connection point for an additional grounding
Communication port（CAN/RS485,BMS, LAN, Meter/Grid-CT, DRM**,
9
PV-CT, AUX）
10 Battery breaker* of SMILE-B3-PLUS
11 Connection port for the WiFi module
*All breakers of SMILE-B3-PLUS are switched off when shipped.
**The DRM is only for regions with AS/NZW 4777.2 safety regulations.
The following table is about DRM interface definition, only for Australia.
Mode Requirement
DRM0 Operate the disconnection device
DRM1 Do not consume power
Do not consume at more than 50% of rate power
DRM2
Do not consume at more than 75% of rate power AND Source reactive
DRM3
power if capable
DRM4 Increase power consumption (subject to constraints from other active DRMs)
DRM5 Do not generate power
Do not generate at more than 50% of rate power
DRM6
Do not generate at more than 75% of rate power AND Sink reactive power if
DRM7
capable
DRM8 Increase power generation (subject to constraints from other active DRMs)
26 27

7.2 Preparing Cables

No. Cable
Battery
1
power cable
Battery
2
communication
cable
CT
communication
3
cable
Signal cable
4
※1
Signal cable
5
※2
Grid power
6
cable
Backup power
7
cable
8 PE cable
※1 For CAN/RS485, LAN, Meter, DRM communication connection with inverter.
※2 For AUX communication connection with inverter

7.3 Connecting Additional Grounding

An external grounding connection is provided at the left side of the SMILE-B3-PLUS.
Prepare M5 OT terminals, strip the grounding cable insulation, insert the stripped part of
the grounding cable into the ring terminal lug and crimp using a crimping tool.
Connect the OT terminal with ground point using the torque is 2.5 Nm with T20
screwdriver.
Conductor Cross
Type
Section Area Range
Standard PV cable in the
16 mm
industry (recommended 2
type: PV1-F)
Standard network cable in the
industry (recommended type: 0.12 ～ 0.2 mm
Cat5e, UTP, UV-resistant (AWG26~AWG24)
for outdoor use)
Standard network cable in the
industry (recommended type:
0.12 ～ 0.2 mm
Cat5e, FTP, UV-resistant
(AWG26~AWG24)
for outdoor use)
Standard network cable in the
0.12 ～ 0.2 mm
industry (recommended type:
Cat5e, FTP, UV-resistant (AWG26~AWG24)
for outdoor use)
Multiple-core outdoor
0.1 ～ 1.3 mm
shielded twisted pair cable
Three-core (L, N and PE)
4 ～ 6 mm
outdoor copper cable
Three-core (L, N and PE)
2.5 ～ 6 mm
outdoor copper cable
Single-core outdoor
6 ～ 10 mm
copper cable
MOUNTING
Outer
Source
Diameter
Delivered
N/A with the
battery pack
Delivered
2
N/A
with the
battery pack
Delivered
2
N/A with the
inverter
Purchased
2
4 ~ 6 mm by the
installer
Purchased
4~6 mm by the
2
installer
Purchased
2 13-18 mm
by the
installer
Purchased
6-12 mm
2
by the
installer
Purchased
N/A
2 by the
installer