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Installation of CheckWatt CM10 and the Huawei inverters is performed according to
their manuals. This manual describes how communication between the CheckWatt
CM10 and Huawei inverter is established.
Communication between the CM10 and the inverter is carried using Modbus RTU via
twisted pair copper cable RS485.
CheckWatt CM10 is compatible with one inverter with one or more battery stacks. The
inverter must not be cascaded with another inverter. If such a connection exists, it
must be disconnected before installation begins.
Installation must be done in this order:
1.
Update inverter and battery to required versions
2.
Unplug dongle
3.
Connect inverter to CM10 via RS485
Note: Ensure that the dongle is unplugged before connecting the inverter to the
CM10. Do not plug the dongle in while the system is in operation. With the dongle
unplugged the connection to FusionSolar will unfortunately be lost.
Installation manual
CheckWatt CM10 and
Huawei SUN2000 3-10KTL M0/M1
Huawei SUN2000 12-25K MB0
Huawei SUN2000 5-12K MAP0
Updated 2025-04-09
Gamlestadsvägen 18B
415 02 Göteborg
SWEDEN
www.checkwatt.se
info@checkwatt.se
+46 101 88 65 65
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Summary of Contents for CheckWatt CM10
- Page 1 Connect inverter to CM10 via RS485 Note: Ensure that the dongle is unplugged before connecting the inverter to the CM10. Do not plug the dongle in while the system is in operation. With the dongle unplugged the connection to FusionSolar will unfortunately be lost.
- Page 2 Select Yes on authorized or not Select correct target version as stated below: For SUN2000-M1 select V100R001C00SPC168 For SUN2000-MB0 select V200R023C10SPC208 For SUN2000-MAP0 select V200R024C00SPC102 Click OK. Gamlestadsvägen 18B www.checkwatt.se 415 02 Göteborg info@checkwatt.se SWEDEN +46 101 88 65 65...
- Page 3 1 b) Click Create. Choose device type: Battery Enable the checkbox for relevant battery. Select Yes on authorized or not For LUNA2000-S0 select: V100R002C00SPC632 For LUNA2000-S1 select: V200R023C10SPC115 Click OK. Gamlestadsvägen 18B www.checkwatt.se 415 02 Göteborg info@checkwatt.se SWEDEN +46 101 88 65 65...
- Page 4 Parameters settings Maximum charge power: Highest possible Maximum discharge power: Highest possible End-of-charge SOC: End-of-discharge SOC: Charge from AC: Enable AC charge cutoff SOC: Click Set Gamlestadsvägen 18B www.checkwatt.se 415 02 Göteborg info@checkwatt.se SWEDEN +46 101 88 65 65...
- Page 5 Go to List view -> Inverter -> Configuration Check the following values Power adjustment settings Active power percentage derating (%): 100% Click Save For questions, contact CheckWatt support at +46 101886565 or support@checkwatt.se Gamlestadsvägen 18B www.checkwatt.se 415 02 Göteborg info@checkwatt.se...
- Page 6 Installation: Internet connection and communication Connect the WAN (Ethernet cable) between the property's router* and LAN 1 (eth0) on the CM10 for internet connection to the CM10. * or other network equipment such as PLC-modem, wifi-repeater or network switch. NOTE! LAN 1 and LAN 2 must not be mixed up as they have different functions.
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