MG Master LV User manual

Quick Installation Guide
Master LV
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Required installation tools (isolated):
- Phillips screwdriver PH1 + PH2
- Torque wrench M8
What's in the box:
- MG Master LV
- 2x io-connector
- 2x terminator
- Quick Installation Guide
Technical Specications
WARNING
CAUTION: Risk of electric shock
This BMS is tested according to and complies with the IEC 62619 and IEC 62620
Make sure the MG Master LV is placed in a dry area, without moisture IP22
This product may only be installed by a qualied electrical engineer
Don't crush, heat, incinerate, short-circuit, dismantle or immerse in any liquid
It may vent, rupture and burn
Use proper tools and personal protection
NOTICE
Use this MG Master LV only in combination with a MG batteries
Always respect charge instructions
BMS
Read and fully understand the manual before installation and use
Remove the top cover
PH1PH2 PH2
Mounting Holes
1/9
Placement
Mount vertically (recommended) or horizontally
✘✓
✓
Connect the cables for the chargers and loads
Batteries Chargers & Loads
MultiPlus-II
charger inverter
Remove from negative bolt:
M8 Nut
Spring Washer
Washer
Break o
2/9
Place on negative bolt:
Cable Lug
M8 Nut*
Spring Washer
Washer
*Tighten nut
with 10 Nm
3/9

Remove from positive bolts:
M8 Nut
Spring Washer
Washer 4/9
Place on positive bolts:
Fuse*
* See Manual
5/9
Place on positive bolts:
*Tighten nut
with 10 Nm
6/9
Cable Lug
M8 Nut*
Spring Washer
Washer
Connect the cables for the batteries, repeat step 2 - 6
Batteries Chargers & Loads
MultiPlus-II
charger inverter
Mount the top cover
Connect the CAN-Bus cables and terminators
Battery CAN-Bus:
MG Batteries
Auxiliar CAN-Bus:
Chargers & loads
M12
RJ45
7/9
I/O Connections
BRelay Contact
1. C
2. NO
3. C
4. NO
5. C
6. NO
Allow-to-charge
Allow-to-discharge
Programmable
ASignal I/O
1. Aux-power-O 13.5V/1A max
2. Allow-to-charge-O 13.5V/1A max
3. Allow-to-discharge-O 13.5V/1A max
4. External-start-button-I Pull-down
5. External-status-O 13.5V/140mA max
6. GND
B
123456
A
123456 8/9
C NO
Perform commissioning checklist, see manual 9/9
Diagnostic Tool
Hold for 3 seconds
3x short press
MG Energy Systems B.V.
Foeke Sjoerdswei 3
8914 BH, Leeuwarden
The Netherlands
https://www.mgenergysystems.eu
© 2023 MG Energy Systems B.V. All rights reserved.
Version 2.0
MG Energy Systems B.V. reserves the right to revise and improve its products as it sees t.
This publication describes the state of this product at the time of its publication and may
not reect the product at all times in the future.