WatchMonCORE and Expansion Board 3 Hardware Guide and Pin Assignment

WatchMonCORE Replaces WatchMon4

Introducing the next generation of WatchMonCORE supervisor. We have made a new model, a stronger WM4...a better 4... now shall be named WatchMonCORE This revamp is taking the lessons we have learned from WM4 and building on this proven platform introduce a few new features.

Moving forward this will be the core building block that additional components will link to this supervisor in the future.

Store Product Link

https://www.batrium.com/products/watchmoncore

Overview

BMS to suit LiFePO4, Lithium-Ion or custom chemistry
User configurable parameters and control logic
Configurable 30vdc 5A relay (i.e. remote circuit breaker trip, contactor or fan)
Additional inputs / outputs via Expansion Board purchased separately
Compatible with all Expansion Board (Series 1, 2, or 3)
Clock with backup battery data logging of key metrics for 10 years
Firmware upgrades via USB
4 stage display of State of Charge (SoC%)
External ambient temperature sensor
Easy to use pluggable screw-terminal connectors
With distributed cell monitors capable of 28 Ah / day balancing adjustment for each cell
Link to ShuntMon with 500A or 1000A power rating
Compatible with MultiMon (MM8)

Remote Communication

WiFi connectivity (normal, disabled, or read only)
CANbus Opto-Insulated to remote Charger / Inverter equipment
Future feature to connecting to Cloud Portal via MQTT (secure link)

Improvements

Easier to use layout than previous models
Bigger DC-DC (6W) supporting 8-65V supply
Cell Monitor port (aka CMU) now with its own external fully isolated communication module named "IsoMon3" that can link to LongMon, BlockMon and LeafMon
CMU and Shunt serial ports have a different number of pins to avoid confusion
New on-board Relay (30vdc 5a relay) making it easier for DIY wiring

Optional Expansion Board (Series 3) Details

3 x Mechanical 30Vdc 5A relay outputs
3 x Solid state relay SSR 65vdc 5A isolated modules outputs
2 x Isolated inputs 5-65vdc sensor channel
2 x ADC 0-5vdc (future development option)
1 x RS485 Serial port (future development option)
1 x External Addressable LED (future development option)
Compatible with all supervisors

Dimensions

WatchMonCORE Length 107 mm x Width 55 mm
Expansion Board-E3 Length 107 mm x Width 55 mm

Software

WatchMonCORE requires the Latest release of WatchMon Toolkit (minimum of 2.16.4)

https://support.batrium.com/article/327-release-strategy

Connecting LongMons to CMU Serial Port

Best to number the first cells from Negative in increasing order
Hi speed CMU serial with the isolation moved to separate IsoMon3 for single cell monitors (i.e. LongMon, BlockMon and LeafMon)
CMUConnect and IsoMon3 are NOT interchangeable
WatchMonCORE requires a IsoMon3, the use of a CMUConnect will damage the WatchMonCORE product

Follow the commission and trouble shooting guides to install:-

Connecting to ShuntMon

CMU and Shunt serial ports have a different number of pins to avoid damage / confusion

Connecting to Inverter / Charger using CANbus

List of available Inverter / Charging equipment can be found from the following link
https://support.batrium.com/article/264-inverters-compatible-via-canbus

Powering WatchMonCORE supply

For High Voltage battery pack systems best to adopt a Fully isolated DC-DC to provide a supply voltage of either 12v or 24v depending on application.