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 Specications
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 qualied 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 reect the product at all times in the future.
