After some time tweaking th zwcfg_xxxx.xml file i got the device working, it is strange because the original XML config for my device had only one instance/endpoint, i found on internet the configuration of other people that had up to three instances, so i just strat trying to combine the config until it works as i want.
I had to hidde in homeassistant some extra sensors i dont need or where duplicated, but for now it is working as espected 
The zwcfg i’m using just in case can help someone is:
<Node id="58" name="meter1" location="" basic="4" generic="49" specific="3" roletype="5" devicetype="5888" nodetype="0" type="Whole Home Meter Simple" listening="true" frequentListening="false" beaming="true" routing="true" max_baud_rate="40000" version="4" query_stage="Complete">
<Manufacturer id="159" name="Qubino">
<Product type="7" id="52" name="ZMNHTDx Smart meter S4 S5 S6" />
</Manufacturer>
<CommandClasses>
<CommandClass id="32" name="COMMAND_CLASS_BASIC" version="1">
<Instance index="1" endpoint="1" />
<Instance index="2" endpoint="2" />
<Instance index="3" endpoint="3" />
</CommandClass>
<CommandClass id="37" name="COMMAND_CLASS_SWITCH_BINARY" version="1" request_flags="5" innif="true">
<Instance index="1" />
<Instance index="2" endpoint="1" />
<Instance index="3" endpoint="2" />
<Instance index="4" endpoint="3" />
<Value type="bool" genre="user" instance="1" index="0" label="Switch" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="1" min="0" max="0" value="False" />
<Value type="bool" genre="user" instance="2" index="0" label="Switch" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="1" min="0" max="0" value="False" />
<Value type="bool" genre="user" instance="3" index="0" label="Switch" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="1" min="0" max="0" value="False" />
<Value type="bool" genre="user" instance="4" index="0" label="Switch" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="False" />
</CommandClass>
<CommandClass id="39" name="COMMAND_CLASS_SWITCH_ALL" version="1" request_flags="5" innif="true">
<Instance index="1" />
<Instance index="2" endpoint="1" />
<Value type="list" genre="system" instance="1" index="0" label="Switch All" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" vindex="3" size="1">
<Item label="Disabled" value="0" />
<Item label="Off Enabled" value="1" />
<Item label="On Enabled" value="2" />
<Item label="On and Off Enabled" value="255" />
</Value>
<Value type="list" genre="system" instance="2" index="0" label="Switch All" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" vindex="3" size="1">
<Item label="Disabled" value="0" />
<Item label="Off Enabled" value="1" />
<Item label="On Enabled" value="2" />
<Item label="On and Off Enabled" value="255" />
</Value>
</CommandClass>
<CommandClass id="50" name="COMMAND_CLASS_METER" version="4" request_flags="3" innif="true">
<Instance index="1" />
<Instance index="2" endpoint="1" />
<Value type="decimal" genre="user" instance="1" index="0" label="Unknown" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="128.4" />
<Value type="decimal" genre="user" instance="2" index="0" label="Energy" units="kWh" read_only="true" write_only="false" verify_changes="false" poll_intensity="1" min="0" max="0" value="128.6" />
<Value type="decimal" genre="user" instance="2" index="4" label="Energy" units="kVAh" read_only="true" write_only="false" verify_changes="false" poll_intensity="1" min="0" max="0" value="132.9" />
<Value type="decimal" genre="user" instance="2" index="8" label="Power" units="W" read_only="true" write_only="false" verify_changes="false" poll_intensity="1" min="0" max="0" value="2161.4" />
<Value type="decimal" genre="user" instance="2" index="16" label="Voltage" units="V" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="234.6" />
<Value type="decimal" genre="user" instance="2" index="20" label="Current" units="A" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="9.767" />
<Value type="decimal" genre="user" instance="2" index="24" label="Power Factor" units="Power Factor" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="0.9994" />
<Value type="decimal" genre="user" instance="2" index="28" label="Unknown" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="-71.3" />
<Value type="bool" genre="user" instance="2" index="32" label="Exporting" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="False" />
<Value type="button" genre="system" instance="2" index="33" label="Reset" units="" read_only="false" write_only="true" verify_changes="false" poll_intensity="0" min="0" max="0" />
</CommandClass>
<CommandClass id="86" name="COMMAND_CLASS_CRC_16_ENCAP" version="1" request_flags="5" innif="true">
<Instance index="1" />
</CommandClass>
<CommandClass id="90" name="COMMAND_CLASS_DEVICE_RESET_LOCALLY" version="1" request_flags="5" innif="true">
<Instance index="1" />
</CommandClass>
<CommandClass id="94" name="COMMAND_CLASS_ZWAVE_PLUS_INFO" version="1" request_flags="5" innif="true">
<Instance index="1" />
<Instance index="2" endpoint="1" />
<Instance index="3" endpoint="2" />
<Instance index="4" endpoint="3" />
<Value type="byte" genre="system" instance="1" index="0" label="ZWave+ Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="255" value="1" />
<Value type="short" genre="system" instance="1" index="1" label="InstallerIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="5888" />
<Value type="short" genre="system" instance="1" index="2" label="UserIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="5888" />
<Value type="byte" genre="system" instance="2" index="0" label="ZWave+ Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="255" value="0" />
<Value type="short" genre="system" instance="2" index="1" label="InstallerIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
<Value type="short" genre="system" instance="2" index="2" label="UserIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
<Value type="byte" genre="system" instance="3" index="0" label="ZWave+ Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="255" value="0" />
<Value type="short" genre="system" instance="3" index="1" label="InstallerIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
<Value type="short" genre="system" instance="3" index="2" label="UserIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
<Value type="byte" genre="system" instance="4" index="0" label="ZWave+ Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="255" value="0" />
<Value type="short" genre="system" instance="4" index="1" label="InstallerIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
<Value type="short" genre="system" instance="4" index="2" label="UserIcon" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
</CommandClass>
<CommandClass id="96" name="COMMAND_CLASS_MULTI_INSTANCE/CHANNEL" version="4" request_flags="1" innif="true">
<Instance index="1" />
</CommandClass>
<CommandClass id="112" name="COMMAND_CLASS_CONFIGURATION" version="1" request_flags="5" innif="true">
<Instance index="1" />
<Value type="list" genre="config" instance="1" index="7" label="Input 1 switch function selection" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="5" vindex="4" size="1">
<Help>Default value 4</Help>
<Item label="Disabled" value="0" />
<Item label="IR external relay control - mono stable push button" value="2" />
<Item label="IR external relay control - bi stable switch" value="3" />
<Item label="External relay control - mono stable push button" value="4" />
<Item label="External relay control - bi stable switch" value="5" />
</Value>
<Value type="list" genre="config" instance="1" index="10" label="Activate / deactivate functions ALL ON/ALL OFF" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="255" vindex="0" size="2">
<Help>Smart meter module responds to commands ALL ON / ALL OFF that may be sent by the main controller or by other controller belonging to the system. Default value 255.</Help>
<Item label="ALL ON active, ALL OFF active" value="255" />
<Item label="ALL ON is not active, ALL OFF is not active" value="0" />
<Item label="ALL ON is not active, ALL OFF active" value="1" />
<Item label="ALL ON active, ALL OFF is not active" value="2" />
</Value>
<Value type="short" genre="config" instance="1" index="11" label="Automatic turning off IR external relay output after set time" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="32536" value="0">
<Help>0 - Auto OFF disabled. 1 second to 32536 seconds Auto OFF enabled with defined time, step is 1 second. Default value 0.</Help>
</Value>
<Value type="short" genre="config" instance="1" index="12" label="Automatic turning on IR external relay output after set time" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="32535" value="0">
<Help>0 - Auto ON disabled. 1 second to 32535 seconds Auto ON enabled with defined time, step is 1 second. Default value 0.</Help>
</Value>
<Value type="short" genre="config" instance="1" index="13" label="Automatic turning off External relay output after set time" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="32536" value="0">
<Help>0 - Auto OFF disabled. 1 second to 32536 seconds Auto OFF enabled with defined time, step is 1 second. Default value 0.</Help>
</Value>
<Value type="short" genre="config" instance="1" index="14" label="Automatic turning on External relay output after set time" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="32535" value="0">
<Help>0 - Auto ON disabled. 1 second to 32535 seconds Auto ON enabled with defined time, step is 1 second. Default value 0.</Help>
</Value>
<Value type="byte" genre="config" instance="1" index="40" label="Power reporting in Watts on power change" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="100" value="1">
<Help>Set value from 0 - 100 (0% - 100%). 0 - Reporting Disabled. 1 - 100 = 1% - 100% Reporting enabled. Power report is send (push) only when actual power in Watts in real time change for more than set percentage comparing to previous actual power in Watts, step is 1%. Default value 10.</Help>
</Value>
<Value type="short" genre="config" instance="1" index="42" label="Power reporting in Watts by time interval" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="32767" value="300">
<Help>Set value means time interval (0 - 32767) in seconds, when power report is send. 0 - Reporting Disabled. 1 second to 32767 seconds reporting enabled. Power report is send with time interval set by entered value. Default value 0.</Help>
</Value>
<Value type="list" genre="config" instance="1" index="45" label="Reset Power counters" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="15" vindex="0" size="1">
<Help>Default value 0</Help>
<Item label="No function" value="0" />
<Item label="Reset counter 1 - KWh" value="1" />
<Item label="Reset counter 2 - KVARh" value="2" />
<Item label="Reset counter 3 - KVAh" value="4" />
<Item label="Reset ALL counters" value="15" />
</Value>
<Value type="list" genre="config" instance="1" index="100" label="Enable /Disable endpoints IR external relay and External relay" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="3" vindex="0" size="1">
<Help>Enabling IR external relay and External relay or both of them, means that endpoint (IR external relay) and endpoint (External relay) or both will be prensent on UI. Disabling them will result in hiding endpoints according to parameter set value.Note that hiding endpoint has no impact on its functionality. Default value 0</Help>
<Item label="Endpoints IR external relay and External relay disabled" value="0" />
<Item label="Endpoints IR external relay disabled, External relay enabled" value="1" />
<Item label="Endpoints IR external relay enabled, External relay disabled" value="2" />
<Item label="Endpoints IR external relay and External relay enabled" value="3" />
</Value>
<Value type="short" genre="config" instance="1" index="110" label="Power auto-triggering relay(s) off" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="15000" value="0">
<Help>0 - Pmax auto OFF disabled. 1W to 15000W Auto OFF enabled, step is 1 Watt. Linked with param 111/112. Default value 0 (disabled).</Help>
</Value>
<Value type="short" genre="config" instance="1" index="111" label="Power auto-triggering off-time" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="30" max="32535" value="30">
<Help>30s to 32535s Auto OFF time, step is 1 sec, if param 110 pMax is reached. Default value 30.</Help>
</Value>
<Value type="list" genre="config" instance="1" index="112" label="Power auto-triggered OFF relay choice" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="3" vindex="0" size="1">
<Help>Switch OFF IR external relay and/or External relay or both of them, if param 110 pMax is reached. Default value 0.</Help>
<Item label="Switch OFF IR/Wired external relays" value="0" />
<Item label="Switch OFF IR external relay" value="1" />
<Item label="Switch OFF Wired external relay" value="2" />
<Item label="Switch OFF Both relays" value="3" />
</Value>
<Value type="int" genre="config" instance="1" index="130" label="Serial NB" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="0">
<Help>Returns device S/N.</Help>
</Value>
<Value type="short" genre="config" instance="1" index="131" label="Firmware Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="105">
<Help>Returns device FW version.</Help>
</Value>
<Value type="short" genre="config" instance="1" index="132" label="Hardware Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0">
<Help>Returns device HW version.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="140" label="Voltage U1" units="deci-V" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="2381">
<Help>Returns U1 in deci-Volts.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="141" label="Intensity I1" units="milli-A" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="7">
<Help>Returns I1 in milli-Amp.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="142" label="Active power Pt" units="deci-W" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="-7">
<Help>Returns Pt in deci-Watt.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="143" label="Reactive power Qt" units="deci-kVAR" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="3">
<Help>Returns Qt in deci-kVAR.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="144" label="Power factor PFt" units="milli" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="10000">
<Help>Returns PFt(x1000).</Help>
</Value>
<Value type="int" genre="config" instance="1" index="145" label="Energy counter 1, active power total (input)" units="deci-kWh" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="938">
<Help>Return Pin in deci-kWh.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="146" label="Energy counter 2, reactive power total (input)" units="deci-kVARh" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="0">
<Help>Returns Qin in deci-kVARh.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="147" label="Energy counter 3, active power total " units="deci-kVAh" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="1143">
<Help>Returns Pt in deci-kVAh.</Help>
</Value>
<Value type="int" genre="config" instance="1" index="148" label="Energy counter 4, active power total (output)" units="deci-kWh" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-2147483648" max="2147483647" value="1">
<Help>Return Pout in deci-kWh.</Help>
</Value>
</CommandClass>
<CommandClass id="114" name="COMMAND_CLASS_MANUFACTURER_SPECIFIC" version="1" request_flags="5" innif="true">
<Instance index="1" />
</CommandClass>
<CommandClass id="115" name="COMMAND_CLASS_POWERLEVEL" version="1" request_flags="5" innif="true">
<Instance index="1" />
<Value type="list" genre="system" instance="1" index="0" label="Powerlevel" units="dB" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" vindex="0" size="1">
<Item label="Normal" value="0" />
<Item label="-1dB" value="1" />
<Item label="-2dB" value="2" />
<Item label="-3dB" value="3" />
<Item label="-4dB" value="4" />
<Item label="-5dB" value="5" />
<Item label="-6dB" value="6" />
<Item label="-7dB" value="7" />
<Item label="-8dB" value="8" />
<Item label="-9dB" value="9" />
</Value>
<Value type="byte" genre="system" instance="1" index="1" label="Timeout" units="seconds" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="255" value="0" />
<Value type="button" genre="system" instance="1" index="2" label="Set Powerlevel" units="" read_only="false" write_only="true" verify_changes="false" poll_intensity="0" min="0" max="0" />
<Value type="byte" genre="system" instance="1" index="3" label="Test Node" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="255" value="0" />
<Value type="list" genre="system" instance="1" index="4" label="Test Powerlevel" units="dB" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" vindex="0" size="1">
<Item label="Normal" value="0" />
<Item label="-1dB" value="1" />
<Item label="-2dB" value="2" />
<Item label="-3dB" value="3" />
<Item label="-4dB" value="4" />
<Item label="-5dB" value="5" />
<Item label="-6dB" value="6" />
<Item label="-7dB" value="7" />
<Item label="-8dB" value="8" />
<Item label="-9dB" value="9" />
</Value>
<Value type="short" genre="system" instance="1" index="5" label="Frame Count" units="" read_only="false" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
<Value type="button" genre="system" instance="1" index="6" label="Test" units="" read_only="false" write_only="true" verify_changes="false" poll_intensity="0" min="0" max="0" />
<Value type="button" genre="system" instance="1" index="7" label="Report" units="" read_only="false" write_only="true" verify_changes="false" poll_intensity="0" min="0" max="0" />
<Value type="list" genre="system" instance="1" index="8" label="Test Status" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" vindex="0" size="1">
<Item label="Failed" value="0" />
<Item label="Success" value="1" />
<Item label="In Progress" value="2" />
</Value>
<Value type="short" genre="system" instance="1" index="9" label="Acked Frames" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="-32768" max="32767" value="0" />
</CommandClass>
<CommandClass id="133" name="COMMAND_CLASS_ASSOCIATION" version="1" request_flags="5" innif="true">
<Instance index="1" />
<Instance index="2" endpoint="1" />
<Instance index="3" endpoint="2" />
<Instance index="4" endpoint="3" />
<Associations num_groups="1">
<Group index="1" max_associations="1" label="Lifeline" auto="true" multiInstance="true">
<Node id="1" instance="1" />
</Group>
</Associations>
</CommandClass>
<CommandClass id="134" name="COMMAND_CLASS_VERSION" version="1" request_flags="5" innif="true">
<Instance index="1" />
<Value type="string" genre="system" instance="1" index="0" label="Library Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="3" />
<Value type="string" genre="system" instance="1" index="1" label="Protocol Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="5.04" />
<Value type="string" genre="system" instance="1" index="2" label="Application Version" units="" read_only="true" write_only="false" verify_changes="false" poll_intensity="0" min="0" max="0" value="6.05" />
</CommandClass>
<CommandClass id="142" name="COMMAND_CLASS_MULTI_CHANNEL_ASSOCIATION" version="1" request_flags="5" innif="true" ForceInstances="true">
<Instance index="1" />
<Instance index="2" endpoint="1" />
<Instance index="3" endpoint="2" />
<Instance index="4" endpoint="3" />
<Associations num_groups="1">
<Group index="1" max_associations="1" label="Lifeline" auto="true" multiInstance="true">
<Node id="1" instance="1" />
</Group>
</Associations>
</CommandClass>
</CommandClasses>
</Node>
HTH!