NUV100 Datasheet: Nuvation High-Voltage BMS™...Generally, a single High-Voltage BMS system uses 1...
Transcript of NUV100 Datasheet: Nuvation High-Voltage BMS™...Generally, a single High-Voltage BMS system uses 1...
NUV100 Datasheet
Nuvation High-Voltage BMS™
2018-10-08, Rev. 2.0
© Copyright 2018, Nuvation Energy
Table of Contents
1. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Nuvation BMS™ High-Voltage Stack Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1. Hardware Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1.1. Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1.2. CAN 485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1.3. GPIO-Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1.4. GPIO-In. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1.5. Link Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.6. Stack Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.7. Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.1. Stack Bus Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.2. Link Bus Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.3. USB Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.4. Ethernet Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.5. GPIO-Out Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.6. GPIO-In Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.7. CAN Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.8. Modbus Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3. Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.1. Thermal Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.2. Humidity Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.3. Shock and Vibration Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4. Mechanical Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Nuvation BMS™ High-Voltage Power Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1. Hardware Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.1. Contactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.2. Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.3. External Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.4. Stack Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.5. Current Shunt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.6. Thermistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.7. Stack Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.8. Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.9. Reset Push-Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2. Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.1. External Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.2. Stack Bus Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.3. Contactors Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.4. Interlock Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.5. Current Shunt Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.6. Thermistor Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3. Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.1. Thermal Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.2. Humidity Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.3. Shock and Vibration Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4. Mechanical Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4. Nuvation BMS™ High-Voltage Cell Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1. Hardware Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1.1. Battery Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1.2. Temperature Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1.3. Link In. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1.4. Link Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1.5. Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2. Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2.1. Link In Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2.2. Link Out Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2.3. Battery Cells Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2.4. Temperature Sensors Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3. Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.1. Thermal Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.2. Humidity Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.3. Shock and Vibration Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.4. Mechanical Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5. Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1. System Overview
The Nuvation High-Voltage BMS™ family includes several modules that operate together as a
complete system. Available modules are listed below.
Table 1. High-Voltage BMS Modules
Model Module Name
NUV100-SC Nuvation BMS™ High-Voltage Stack Controller
NUV100-PI-HE Nuvation BMS™ High-Voltage Power Interface
NUV100-CI-12 Nuvation BMS™ High-Voltage Cell Interface - 12 channel
NUV100-CI-16 Nuvation BMS™ High-Voltage Cell Interface - 16 channel
NUV100-CI-4M12 Nuvation BMS™ High-Voltage Cell Interface - 12V 4 channel
Generally, a single High-Voltage BMS system uses 1 Stack Controller, 1 Power Interface, and 1 or
more Cell Interfaces. An example configuration is shown in Nuvation High-Voltage BMS™ System
Overview
Figure 1. Nuvation High-Voltage BMS™ System Overview
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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2. Nuvation BMS™ High-Voltage Stack Controller
2.1. Hardware Overview
Nuvation BMS™ High-Voltage Stack Controller module contains the central MCU which handles all
the processes and decision making required by Nuvation High-Voltage BMS™. The external
interfaces to this module are:
• 10/100 Base-T Ethernet RJ45 jack
• Isolated CAN 2.0 port
• RS-485 (Modbus) connector
• Four (4) opto-isolated digital outputs
• Four (4) opto-isolated digital inputs
• Link Bus connector
• Stack Bus connector
• Three (3) Indicator LEDs
Stack Controller does not have high-voltage connectors and does not connect to any battery
stack-referenced signals, making it safe to handle and connect to external equipment.
The following subsections describe the external interfaces in more detail. For wiring/pin-out
information, please refer to the Nuvation High-Voltage BMS™ Installation Guide.
2.1.1. Ethernet
The Ethernet jack is a standard RJ45 Cat5e rated jack. This interface is used as the primary
means of connecting an external system to the BMS to configure the operating parameters and
observe the status. It is also used as a means of controlling an external battery charger/inverter
and communicating with the vehicle central controller, grid-attached site controller, etc. The two
LEDs on the Ethernet jack indicate link status (green LED) and network activity (yellow LED).
2.1.2. CAN 485
The CAN 485 connector is a 12-pin Micro-Fit 3.0™ Molex connector. This interface provides an
isolated CAN 2.0 port as well as a non-isolated RS-485 (Modbus) port. This interface can be used
to control an external battery charger/inverter and communicating with the external system
(vehicle central controller, grid-attached controller, etc.)
2.1.3. GPIO-Out
The GPIO-Out connector is a 10-pin Micro-Fit 3.0™ Molex connector. This interface provides four
(4) isolated outputs (output of a solid-state relay) to allow an external system to receive digital
input from the Stack Controller. The functionality of this interface is configured by the end-user to
match their needs.
2.1.4. GPIO-In
The GPIO-In connector is an 8-pin Micro-Fit 3.0™ Molex connector. This interface provides four (4)
isolated inputs (cathode of an optocoupler) to allow an external system to send digital output to
the Stack Controller. The functionality of this interface is configured by the end user to match their
needs.
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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2.1.5. Link Out
The Link Out connector is a 4-pin Micro-Fit 3.0™ Molex connector. This interface is used to connect
the Stack Controller to the string of one or more Cell Interface modules. The Link In connector on
the Cell Interface monitoring the lowest-potential cell in the series battery stack is connected to
this connector via a Link Bus cable. The Link Out connector also provides operating power to the
Cell Interface modules.
2.1.6. Stack Bus
The Stack Bus connector is a 6-pin Mini-Fit® Jr. Molex connector. This interface is used to connect
the Power Interface to the Stack Controller. The Stack Controller is powered from the Stack Bus.
2.1.7. Indicator LEDs
The three (3) LEDs are used by the Stack Controller to indicate health and functional status to the
user. All LEDs are controlled by the central MCU. The Power LED indicates the MCU is operational,
the Activity LED indicates the MCU is processing data and the Fault LED indicates that Nuvation
BMS has detected a Fault.
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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2.2. Operating Limits
This section states the operating limits of the Stack Controller.
Exceeding the maximum ratings will damage the module.
2.2.1. Stack Bus Specifications
Symbol Parameter Conditions Min Typ Max Units
+VSYS Input Voltage 5.6 24 34 Vdc
Input Current +VSYS =24Vdc
0.042 - 1.3 Adc
Rterm Termination resistancetolerance
118.8 120 121.2 Ω
Power rating - - 0.125 W
StackbusP Dominant Output 2.45 - 3.3 Vdc
Recessive Output - 2.3 - Vdc
Output Current 10 - 50 mAdc
Output Signal Rise Time 35 - 135 ns
Output Signal Fall Time 35 - 135 ns
StackbusN Dominant Output 0.5 - 1.25 Vdc
Recessive Output - 2.3 - Vdc
Output Current 10 - 50 mAdc
Output Signal Rise Time 35 - 135 ns
Output Signal Fall Time 35 - 135 ns
2.2.2. Link Bus Specifications
Symbol Parameter Conditions Min Typ Max Units
+VBUS Output Voltage - +VSYS - Vdc
Output Current +VBUS =24Vdc
- - 1.26 Adc
IP_LINK Output Current - - 20 mAdc
IN_LINK Output Current - - 20 mAdc
2.2.3. USB Specifications
Symbol Parameter Conditions Min Typ Max Units
+5V_USB USB Current - - 500 mAdc
USB_Data USB supported datarates 1.0 - 2.0
2.2.4. Ethernet Specifications
Symbol Parameter Conditions Min Typ Max Units
ETH_Protocol Ethernet data speeds 10 - 100 Base-T
ETH_Connector Ethernet jack rating - Cat5e -
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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2.2.5. GPIO-Out Specifications
Symbol Parameter Conditions Min Typ Max Units
Vmax Open Blocking Voltage Between *_Aand *_B, orbetween *_Band *_A
- - 60 Vdc
Imax Closed Maximum Curent Between *_Aand *_B, orbetween *_Band *_A
- - 400 mAdc
Ron Closed-State Resistance Between *_Aand *_B, orbetween *_Band *_A
- - 2 Ω
2.2.6. GPIO-In Specifications
Symbol Parameter Conditions Min Typ Max Units
Turn-On Turn On Threshold Voltage 0 - 1.4 Vdc
Turn-On Threshold Current 1.6 - - mAdc
Turn-Off Turn-Off Threshold Voltage 3 - 5 Vdc
Turn-Off Threshold Current - 1 - mAdc
Vmax Off Voltage Iin = 0mA - - 5 Vdc
Imax On Current Vin = 0V - - 12 mAdc
2.2.7. CAN Specifications
Symbol Parameter Conditions Min Typ Max Units
+VCAN Input Voltage 5.5 12 30 Vdc
Input Current +VCAN =12Vdc
- 52 73 mAdc
Rterm Termination resistancetolerance
118.8 120 121.2 Ω
Power rating - - 0.125 W
CAN_P Dominant Output 2.9 3.5 4.5 Vdc
Recessive Output 2 2.3 3 Vdc
Output Current 10 - 70 mAdc
Output Signal Rise Time - 20 50 ns
Output Signal Fall Time - 20 50 ns
CAN_N Dominant Output 0.8 1.2 1.5 Vdc
Recessive Output 2 2.3 3 Vdc
Output Current 10 - 70 mAdc
Output Signal Rise Time 20 50 ns
Output Signal Fall Time 20 50 ns
Isolation Rated Isolation - - 2500 Vrms
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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2.2.8. Modbus Specifications
Symbol Parameter Conditions Min Typ Max Units
+VMOD Output Voltage - +VSYS - Vdc
Output Current +VMOD =24Vdc
- - 1 Adc
Rterm Termination resistancetolerance
148.5 150 151.5 Ω
Power rating - - 0.125 W
|Vod| Driver differential output 1.5 2 - V
Io Output current -60 - 60 mA
tr Output Signal Rise Time 0.3 0.7 1.2 us
tf Output Signal Fall Time 0.3 0.7 1.2 us
2.3. Environmental Conditions
2.3.1. Thermal Specifications
Symbol Parameter Conditions Min Typ Max Units
Ta Operating Temperature -10 25 60 °C
Storage Temperature -10 25 60 °C
2.3.2. Humidity Specifications
Symbol Parameter Conditions Min Typ Max Units
RH Operational RH 5 - 85 %
Storage RH 5 - 85 %
2.3.3. Shock and Vibration Specifications
Symbol Parameter Conditions Min Typ Max Units
Vertical Vertical shock/vibration - - 1 m/s2
Longitudinal Longitudinal shock/vibration - - 1 m/s2
Transverse Transverse shock/vibration - - 1 m/s2
The Stack Controller meets industry standards CISPR 22 Class A and IEC/EN 61000-4-2 for
EMC/EMI and ESD respectively. All components are EU RoHS/China RoHS compliant.
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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2.4. Mechanical Overview
The overall dimensions of the Stack Controller are 104.4mm X 121.58mm X 40.6mm.
It comes standard with DIN clips that enable the Stack Controller module to be securely mounted
to EN50022-compliant DIN rails. The clips add an extra 19.6mm to the overall width of the Stack
Controller module, bringing it from 104.4mm to 124mm. The clips also hold the module
approximately 7mm away from the inside lip of the DIN rail.
Extra space should be provided around the module to allow for easy installation/maintenance.
The Stack Controller weighs approximately 525g.
Figure 2. Mechanical Drawing of Stack Controller
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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3. Nuvation BMS™ High-Voltage Power Interface
3.1. Hardware Overview
Nuvation BMS™ High-Voltage Power Interface contains a redundant MCU which handles all the
processes and decision-making required by Nuvation BMS to control the high-current contactors.
The external interfaces to this module are:
• Four (4) high-current contactor coil drivers
• Nuvation BMS Interlock input
• External Power input
• Stack Voltage input
• Current Shunt input
• Stack Bus connector
• Three (3) Indicator LEDs
• Reset push-button
The Power Interface has high-voltage connectors and connects to battery stack-referenced signals.
Safety precautions are required to handle and connect cables into this module.
The following subsections describe the external interfaces in more detail. For wiring/pin-out
information, please refer to the Nuvation High-Voltage BMS™ Installation Guide.
3.1.1. Contactors
The Contactor connector is a 12-pin Mini-Fit® Jr. Molex connector. This interface is used to provide
or select contactor coil operating power, either from an external power supply (40V max), or from
a loop-back connection from the BMS internal 24V (nominal) source.
The Contactors connector also connects to up to four (4) external contactor coils. Each output is
capable of sourcing a maximum of 2.8A continuously. If coil operating power is provided from an
external power source, the sum of all four output currents must not exceed 5A continuous. If coil
operating power is provided from the internal power source, the sum of all four output currents
must not exceed 2.8A or 2.9A minus 31.7mA per Cell Interface connected in the system,
whichever is lower.
Coil high-side drive and return outputs are provided at the connector. The return is referenced to
the Power Interface chassis. Contactor coil back-EMF is internally clamped at 40V.
3.1.2. Interlock
The Interlock connector is a 3-pin Micro-Fit 3.0™ Molex connector. This interface is used as a
means of selecting the high-current contactor behavior. By closing external contacts (or by
attaching a permanent jumper link) connected to selected pin pairs on the Interlock connector,
energizing of the contactors is done under the BMS software control only, or through the BMS
software control qualified with a redundant hardware-based fault detection signal.
If no connection is made to the Interlock connector (all connector pins open), the external
contactors cannot be energized.
NUV100 Datasheet - 2018-10-08, Rev. 2.0
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3.1.3. External Power
The External Power connector is a 2-pin Mini-Fit® Jr. Molex connector. This interface is used to
supply AC or DC power to Nuvation BMS. The external power supply must be isolated from the
battery stack and chassis ground.
3.1.4. Stack Power
The Stack Power connector is a 3-pin Mini-Fit® Jr. Molex connector. A single pin of this interface is
used to connect the Power Interface to the most positive end of the stack to facilitate overall stack
voltage measurement.
3.1.5. Current Shunt
The Current Shunt connector is a 4-pin Mini-Fit® Jr. Molex connector. This interface is used to
connect the Power Interface to a current shunt at the most negative end of the stack, for stack
charge and discharge current measurement as well as to facilitate overall stack voltage
measurement.
Full stack potential exists between the Stack Power and the Current Shunt
connectors. Potentially dangerous voltages may also be present between either or
both of these connectors and earth or chassis ground, including the Power
Interface and Stack Controller enclosures, if provided. Appropriate safety
precautions must be observed.
3.1.6. Thermistor
The Thermistor connector is a 2-pin Micro-Fit 3.0™ Molex connector. The thermistor must be
electrical isolated from the battery stack. Contact Nuvation Energy for support if a thermal
compensated current shunt is desired for your specific application.
Nuvation Energy can be contacted via [email protected].
3.1.7. Stack Bus
The Stack Bus connector is a 6-pin Mini-Fit® Jr. Molex connector. This interface is used to connect
the Power Interface to the Stack Controller. The Power Interface supplies power to the Stack
Controller via the Stack Bus.
3.1.8. Indicator LEDs
The three (3) LEDs are used by the Power Interface to indicate health and functional status to the
user. All LEDs are controlled by the redundant MCU. The Power LED indicates that the MCU is
operational, the Activity LED indicates the MCU is processing data and the Fault LED indicates
Nuvation BMS has detected a Fault.
3.1.9. Reset Push-Button
The reset push-button is accessible through a small hole in the enclosure (if provided). It resets
the Power Interface’s redundant MCU and cycles power on the Stack Bus, thereby resetting the
Stack Controller and all Link Bus powered Cell Interfaces. The button needs to be held for 0.5s to
issue the reset.
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3.2. Operating Limits
This section states the operating limits of the Power Interface.
Exceeding the maximum ratings will damage the module.
3.2.1. External Power Specifications
Symbol Parameter Conditions Min Typ Max Units
+VIN Input DC Voltage 13 24 34 Vdc
Input AC Voltage 16 20 24 Vac
Input DC Current +VIN = 24Vdc - - 3.5 Adc
Input AC Current +VIN = 24Vac - - 5.5 Aac
Input Isolation fromChassis/COM
60 - - Vrms
3.2.2. Stack Bus Specifications
Symbol Parameter Conditions Min Typ Max Units
+VSYS Output Voltage 13 24 34 Vdc
Output Current +VSYS =24Vdc
- - 1.3 Adc
Rterm Termination resistancetolerance
118.8 120 121.2 Ω
Power rating - - 0.125 W
StackbusP Dominant Output 2.45 - 3.3 Vdc
Recessive Output - 2.3 - Vdc
Output Current 10 - 50 mAdc
Output Signal Rise Time 35 - 135 ns
Output Signal Fall Time 35 - 135 ns
StackbusN Dominant Output 0.5 - 1.25 Vdc
Recessive Output - 2.3 - Vdc
Output Current 10 - 50 mAdc
Output Signal Rise Time 35 - 135 ns
Output Signal Fall Time 35 - 135 ns
3.2.3. Contactors Specifications
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Symbol Parameter Conditions Min Typ Max Units
+VCOIL External Coil Power SupplyInput
5 24 40 Vdc=======
+VCOIL External CoilPower SupplyInput
5 24 40
Vdc External CoilPowerSupplyContinuousCurrent
+VCOIL =24Vdc
- -
2.8 Adc External CoilPowerSupplyPulseCurrent(<300µs)
+VCOIL =24Vdc
- -
20 Adc +VINT Internal CoilPowerSupplyVoltage
- +VSYS
- Vdc Internal CoilPowerSupplyCurrent
- -
2.8 Adc COIL(n) CoilDriverOutputVoltage
- +VCOIL
- Vdc CoilDriverOutputCurrent
+VCOIL =24Vdc
- -
3.2.4. Interlock Specifications
Symbol Parameter Conditions Min Typ Max Units
OVERRIDE OverRide Voltage Output +VCOIL =24Vdc
- 5 - Vdc
OverRide Current Output +VCOIL =24Vdc
49.5 50 50.5 mAdc
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Symbol Parameter Conditions Min Typ Max Units
DRV Drv Voltage Output +VCOIL =24Vdc
- 5 - Vdc
Drv Current Output +VCOIL =24Vdc
49.5 50 50.5 mAdc
3.2.5. Current Shunt Specifications
Symbol Parameter Conditions Min Typ Max Units
VSHUNT_REF Reference Output Voltage - 1.25 - Vdc
Reference Output Current -250 0 250 µAdc
Vdiff Differential voltage betweenVSHUNT_BAT andVSHUNT_LOAD
-1 0 1 Vdc
Vmes Measurement resolution - 143 - nVdc
3.2.6. Thermistor Specifications
Symbol Parameter Conditions Min Typ Max Units
+VTHERM Thermistor Output Voltage - 2.5 - Vdc
Thermistor Output Current +VTHERM =2.5Vdc
- - 250 µA
Rt Thermistor Resistance at 25°C - 10 - kΩ
3.3. Environmental Conditions
3.3.1. Thermal Specifications
Symbol Parameter Conditions Min Typ Max Units
Ta Operating Temperature -10 25 60 °C
Storage Temperature -10 25 60 °C
3.3.2. Humidity Specifications
Symbol Parameter Conditions Min Typ Max Units
RH Operational RH 5 - 85 %
Storage RH 5 - 85 %
3.3.3. Shock and Vibration Specifications
Symbol Parameter Conditions Min Typ Max Units
Vertical Vertical shock/vibration - - 1 m/s2
Longitudinal Longitudinal shock/vibration - - 1 m/s2
Transverse Transverse shock/vibration - - 1 m/s2
Nuvation BMS™ High-Voltage Power Interface meets industry standards CISPR 22 Class A and
IEC/EN 61000-4-2 for EMC/EMI and ESD respectively. The Power Interface has been designed to
meet EN 60950 high voltage creepage/clearance distances to prevent arching to the metal
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enclosure. All components are EU RoHS/China RoHS compliant.
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3.4. Mechanical Overview
The overall dimensions of the Power Interface are 174.40mm X 121.58mm X 48.60mm.
It comes standard with DIN clips that enable the Power Interface module to be securely mounted
to EN50022-compliant DIN rails. The clips add an extra 19.6mm to the overall width of the Power
Interface, bringing it from 174.40mm to 194mm. The clips also hold the module approximately
7mm away from the inside lip of the DIN rail.
Extra space should be provided around the module to allow for easy installation/maintenance.
The Power Interface can contain high-voltage signals. It is possible to have
signals 1250Vdc away from earth ground. Care must be taken when mounting the
PCB into a metal enclosure to ensure the metal walls remain the correct distance
from the exposed conductor on the PCB. Using the 1250Vdc as an example, the
metal walls must be at least 4.2mm from the nearest exposed conductor and not
touch the PCB or any component on the PCB, including the connector housings.
The Power Interface weighs approximately 915g.
Figure 3. Mechanical Drawing of Power Interface
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4. Nuvation BMS™ High-Voltage Cell Interface
4.1. Hardware Overview
The Nuvation BMS™ High-Voltage Cell Interface module contains interface and measurement
circuitry which converts the cell voltage and temperature to a digital value read, and to relay that
data to the Stack Controller module. It also enables/disables cell balancing as required. The
external interfaces to this module are:
• Battery Cells connector
• Temperature Sensors connector
• Two (2) Link Bus connectors
• Two (2) Indicator LEDs
The CI has high-voltage connectors and connects to battery stack-referenced signals. Safety
precautions are required to handle and connect cables into this module.
There are three models of the Cell Interface.
• The NUV100-CI-12, Cell Interface - 12 channel can monitor up to 12 series-connected cells
• The NUV100-CI-16, Cell Interface - 16 channel can monitor up to 16 series-connected cells
• The NUV100-CI-4M12, Cell Interface - 12V 4 channel can monitor up to 4 series-connected
12V lead-acid cells
The following subsections describe the external interfaces in more detail. For wiring/pin-out
information, please refer to the Nuvation High-Voltage BMS™ Installation Guide.
4.1.1. Battery Cells
The Battery Cells connector is an 18-pin Micro-Fit 3.0™ Molex connector. This interface is used to
connect the battery cell voltage sense wires to the module’s measurement and balancing circuitry.
If cell balancing is used, these wires carry the balancing current, and should be sized
appropriately. Note that balancing is not supported in the NUV100-CI-4M12 variant. For each Cell
Interface module used, the cells connected to it are referenced to its CELL0 input, which is
connected to the negative end of the most negative connected cell.
When not powering the Cell Interface module from the Link Bus:
• In the NUV100-CI-12 variant, a minimum of 11V must be present between the CELL0 input and
the most positive connected cell
• In the NUV100-CI-16 and NUV100-CI-4M12 variants, cells are connected as two groups; a
minimum of 11V must be present between the most negative and most positive for each
group.
There is no minimum cell voltage when powering the Cell Interface from the Link Bus.
4.1.2. Temperature Sensors
The Temperature Sensors connector is a 16-pin Micro-Fit 3.0™ Molex connector. This interface is
used to connect up to eight 10kΩ NTC thermistors to the Cell Interface module. The sensors are
referenced to the module’s CELL0 input, so care must be taken to ensure that they are electrically
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isolated from any common or ground potential, and from all other cell voltage terminals of the
local Cell Interface module and of any other Cell Interface modules in the particular installation.
These sensors are used by Nuvation BMS to sense over and under temperature conditions.
4.1.3. Link In
The Link In connector is a 4-pin Micro-Fit 3.0™ Molex connector. This interface is used to connect
the Cell Interface module to the next lower-potential Cell Interface module or to the Stack
Controller if the Cell Interface is the lowest potential Cell Interface in the chain. A Link Bus cable is
used to connect the Link In connector to either the Link Out connector on the next lower-potential
Cell Interface or to the Link Out connector on the Stack Controller. The Cell Interface also accepts
power from this connector to power itself and any higher-potential Cell Interfaces connected to
the Link Out connector.
4.1.4. Link Out
The Link Out connector is a 4-pin Micro-Fit 3.0™ Molex connector. This interface is used to provide
the data channel and power source to higher-potential Cell Interface modules in the chain. The
Link Out connector is to be unconnected if the Cell Interface is the highest potential Cell Interface
in the chain.
4.1.5. Indicator LEDs
The two (2) LEDs are used by the Cell Interface to provide a rudimentary indication of the
functional status of the module. The Activity LED indicates that the Cell Interface module has
received a communication packet from the Stack Controller via the Link Bus, and the Fault LED
indicates Nuvation BMS has detected a Fault.
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4.2. Operating Limits
This section states the operating limits of the Cell Interface.
Exceeding the maximum ratings will damage the module.
4.2.1. Link In Specifications
Symbol Parameter Conditions Min Typ Max Units
+VBUS Input Voltage 9 24 60 Vdc
Input Current,CI-12
+VBUS = 24Vdc, Link Outdisconnected
- - 25.5 mAdc
Input Current,CI-16
+VBUS = 24Vdc, Link Outdisconnected
- - 31.7 mAdc
IP_LINK Output Current - - 20 mAdc
IN_LINK Output Current - - 20 mAdc
4.2.2. Link Out Specifications
Symbol Parameter Conditions Min Typ Max Units
+VBUS Output Voltage - +VBUS - Vdc
Output Current +VBUS =24Vdc
- - 31.7 mAdc/CI-16
IP_LINK Output Current - - 20 mAdc
IN_LINK Output Current - - 20 mAdc
4.2.3. Battery Cells Specifications
Symbol Parameter Conditions Min Typ Max Units
C(n) - C(n-1) Input Cell Voltage Range +VBUS =24Vdc
0 - 5 Vdc
Vsum Voltage between C0 and C12 CI-12, +VBUS= 0Vdc
11 - 60 Vdc
Voltage between C0 and C8 CI-16, +VBUS= 0Vdc
11 - 40 Vdc
Voltage between C8 and C16 CI-16, +VBUS= 0Vdc
11 - 40 Vdc
Voltage between C0 and C2 CI-4M12,+VBUS = 0Vdc
11 - 40 Vdc
Voltage between C2 and C4 CI-4M12,+VBUS = 0Vdc
11 - 40 Vdc
TME Total Measurement Error CI-12, CI-16,+VBUS =24Vdc
±0.1 ±1.2 ±1.6 mVdc
Total Measurement Error CI-4M12,+VBUS =24Vdc
±27.0 ±35.1 ±41.7 mVdc
I(n) Cell Balancing Current (only forCI-12 and CI-16 )
C(n) - C(n-1)= 4Vdc
304 307 310 mAdc
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4.2.4. Temperature Sensors Specifications
Symbol Parameter Conditions Min Typ Max Units
I(n) Output Current to TemperatureSensor
- - 300 uA
Rt(n) Temperature Sensor Resistanceat 25°C
- 10 - kΩ
T(n) Input Temperature SensorVoltage Range
Cell 0 = 0V 0 - 3 V
4.3. Environmental Conditions
4.3.1. Thermal Specifications
Symbol Parameter Conditions Min Typ Max Units
Ta Operating Temperature -10 25 60 °C
Storage Temperature -10 25 60 °C
4.3.2. Humidity Specifications
Symbol Parameter Conditions Min Typ Max Units
RH Operational RH 5 - 85 %
Storage RH 5 - 85 %
4.3.3. Shock and Vibration Specifications
Symbol Parameter Conditions Min Typ Max Units
Vertical Vertical shock/vibration - - 1 m/s2
Longitudinal Longitudinal shock/vibration - - 1 m/s2
Transverse Transverse shock/vibration - - 1 m/s2
Nuvation BMS™ High-Voltage Cell Interface has also met industry standards CISPR 22 Class A and
IEC/EN 61000-4-2 for EMC/EMI and ESD respectively. The Cell Interface has been designed to
meet EN 60950 high voltage creepage/clearance distances to prevent arcing to the metal
enclosure. All components are EU RoHS/China RoHS compliant.
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4.4. Mechanical Overview
The overall dimensions of the Cell Interface are 104.4mm X 121.58mm X 40.6mm.
The Cell Interface comes standard in a bulkhead-mountable enclosure. The enclosure has five
metal walls, leaving the bottom of the unit fully exposed. It must be mounted to a metal bulkhead
panel so that the panel will become the missing side. The module will produce up to 24W (32W if
it is the NUV100-CI-16 model) during cell balancing. A portion of this heat will be transferred to
the bulkhead.
Extra space should be provided around the module to allow for easy installation/maintenance.
The Cell Interface is also available in an enclosure with DIN clips that enable the Cell Interface
module to be securely mounted to EN50022-compliant DIN rails. The clips add an extra 19.6mm
to the overall width of the Cell Interface module, bringing it from 104.4mm to 124mm. The clips
also hold the module approximately 7mm away from the inside lip of the DIN rail.
The Cell Interface can contain high-voltage signals, with the maximum voltage
possibly reaching as high as 1250Vdc. Care must be taken when mounting the
PCB into a metal enclosure to ensure that the metal walls remain a safe distance
from the exposed conductor on the PCB.
Using the 1250Vdc as an example, the metal walls must be at least 4.2mm from
the nearest exposed conductor and not touch the PCB or any component on the
PCB, including the connector housings.
A Cell Interface with DIN mountable enclosure weighs approximately 540g and a Cell Interface
with bulkhead mountable enclosure weighs approximately 450g.
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Figure 4. Mechanical Drawing of Cell Interface with DIN Enclosure
Figure 5. Mechanical Drawing of Cell Interface with Bulkhead Enclosure
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5. Ordering Information
Model Number Description
Stack Controller
NUV100-SC Nuvation BMS™ High-Voltage Stack Controller, DIN Mount
NUV100-SC-U Nuvation BMS™ High-Voltage Stack Controller, PCB assembly only (noenclosure)
Power Interface
NUV100-PI-HE Nuvation BMS™ High-Voltage Power Interface, DIN Mount
NUV100-PI-HE-U Nuvation BMS™ High-Voltage Power Interface, PCB assembly only (noenclosure)
Cell Interface
NUV100-CI-12 Nuvation BMS™ High-Voltage Cell Interface - 12 channel, DIN Mount
NUV100-CI-12-1 Nuvation BMS™ High-Voltage Cell Interface - 12 channel, Bulkhead
NUV100-CI-12-U Nuvation BMS™ High-Voltage Cell Interface - 12 channel, PCB assemblyonly (no enclosure)
NUV100-CI-16 Nuvation BMS™ High-Voltage Cell Interface - 16 channel, DIN Mount
NUV100-CI-16-1 Nuvation BMS™ High-Voltage Cell Interface - 16 channel, Bulkhead
NUV100-CI-16-U Nuvation BMS™ High-Voltage Cell Interface - 16 channel, PCB assemblyonly (no enclosure)
NUV100-CI-4M12 Nuvation BMS™ High-Voltage Cell Interface - 12V 4 channel, DIN Mount
NUV100-CI-4M12-1 Nuvation BMS™ High-Voltage Cell Interface - 12V 4 channel, Bulkhead
NUV100-CI-4M12-U Nuvation BMS™ High-Voltage Cell Interface - 12V 4 channel, PCB assemblyonly (no enclosure)
Customer Starter Kits
A Customer Starter Kit includes the Stack Controller, Power Interface and Cell
Interface modules with enclosures and a cable kit to get you started.
Please visit https://nstore.nuvationenergy.com for more details.
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Nuvation BMS™, Nuvation High-Voltage BMS™, Nuvation Low-Voltage BMS™ and Nuvation BMS™
Grid Battery Controller are trademarks of Nuvation Energy. From time to time Nuvation Energy
will make updates to the Nuvation BMS™ in response to changes in available technologies, client
requests, emerging energy storage standards and other industry requirements. The product
specifications in this document therefore, are subject to change without notice.
© Copyright 2018, Nuvation Energy
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