Bidirectional cell channels
Each channel operates as both source and sink at 6 V with a choice of ±1 A or ±5 A.
N9000 – Modular Battery Cell Simulator with 0.5 mV Voltage Accuracy
For scalable multi-channel BMS test systems with precise and repeatable cell-voltage emulation.
The 4U platform combines a measurement and control chassis with electrically isolated plug-in modules. Depending on the configuration, it supports up to 36 cell channels or mixed systems combining cell, resistance and high-voltage modules in one 19-inch rack unit.
Programmable fault simulation
Short circuit, positive or negative line interruption and polarity reversal can be applied individually by channel.
Fast synchronization
Command response down to 1 ms and multi-channel synchronization down to 200 µs support dynamic HIL testing.
Automation-ready platform
LAN, CAN 2.0, CAN FD, hardware triggering and cascading support integration into automated test systems.
Personal project consultation
Do you need support selecting the right power supply? Our technical specialists will provide personal advice tailored to your application.
Select the appropriate technical configuration or access product documentation directly.
ART. NO.
Description
Current [A]
Power [P]
Voltage [V]
N9004-06-01
|
Description
N9004-06-01 Bidirectional modular cell simulator, 4 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9008-06-01
|
Description
N9008-06-01 Bidirectional modular cell simulator, 8 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9012-06-01
|
Description
N9012-06-01 Bidirectional modular cell simulator, 12 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9016-06-01
|
Description
N9016-06-01 Bidirectional modular cell simulator, 16 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9020-06-01
|
Description
N9020-06-01 Bidirectional modular cell simulator, 20 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9024-06-01
|
Description
N9024-06-01 Bidirectional modular cell simulator, 24 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9028-06-01
|
Description
N9028-06-01 Bidirectional modular cell simulator, 28 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9032-06-01
|
Description
N9032-06-01 Bidirectional modular cell simulator, 32 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9036-06-01
|
Description
N9036-06-01 Bidirectional modular cell simulator, 36 isolated CH à 6 V/±1 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9012-06-05
|
Description
N9012-06-05 Bidirectional modular cell simulator, 12 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9016-06-05
|
Description
N9016-06-05 Bidirectional modular cell simulator, 16 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9020-06-05
|
Description
N9020-06-05 Bidirectional modular cell simulator, 20 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9024-06-05
|
Description
N9024-06-05 Bidirectional modular cell simulator, 24 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9028-06-05
|
Description
N9028-06-05 Bidirectional modular cell simulator, 28 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9032-06-05
|
Description
N9032-06-05 Bidirectional modular cell simulator, 32 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9036-06-05
|
Description
N9036-06-05 Bidirectional modular cell simulator, 36 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9004-06-05
|
Description
N9004-06-05 Bidirectional modular cell simulator, 4 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9008-06-05
|
Description
N9008-06-05 Bidirectional modular cell simulator, 8 isolated CH à 6 V/±5 A, 0.5 mV accuracy, series and M/S connectable, 4U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
Modular system
Technical Data
Design
Standard 19"
Height
4
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
36
32
28
24
20
16
12
8
4
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Bidirectional
Fault Simulation
< 10 Channels
> 10 Channels
Uni-/Bidirectional
Bidirectional
N9000 overview
The N9000 configurations covered on this product page use NB101-B modules with 0.5 mV cell-voltage programming and readback accuracy. Each module provides four electrically isolated bidirectional channels from 0 to 6 V, available either with ±1 A and 6 W per channel or ±5 A and 30 W per channel. Using two to nine modules creates systems with 8 to 36 cell channels. The 4U, 19-inch chassis can also combine programmable resistance modules for NTC and sensor simulation with high-voltage modules for pack-voltage simulation. The platform is intended for BMS, AFE, HIL, development and production testing where multiple isolated cell voltages must be generated, measured, synchronized and subjected to defined fault conditions.
Key benefits
Four isolated channels per module
The four-channel module structure maps cleanly to cell groups and allows the system to be expanded in defined steps.
0.1 mV voltage resolution
Setpoint and readback resolution are 0.1 mV, with a corresponding voltage accuracy of 0.5 mV.
Low-current measurement
Additional ranges down to ±1 mA with 0.1 µA resolution support quiescent-current and AFE-related measurements.
Four-wire connection
Separate sense leads compensate cable voltage drop and improve the controlled voltage directly at the device under test.
Short response times
Command response down to 1 ms, synchronization down to 200 µs and fast voltage transitions support dynamic BMS HIL sequences.
Mixed module configuration
Cell, resistance and high-voltage modules can be combined in one chassis to match the required test architecture.
Battery cell simulation principle
Each NB101 channel generates a programmable cell voltage and operates bidirectionally. It can therefore source current to the device under test or absorb current from it. Electrical isolation between channels allows the outputs to be connected in series as a cell string. The four-terminal connection separates power and sense leads at the DUT.
Cell voltage is programmed in CV operation. Separate input and output current limits define the permitted sink and source current. A programmable internal resistance from 0 to 1,000 mΩ is also available. BMS fault tests can apply short circuit, positive or negative line interruption and polarity reversal.
System wiring note: When series-connected cell channels are used together with a high-voltage source for pack-voltage simulation, the two sources must not be connected directly in parallel. Switching must be performed using suitable high-voltage relays with a minimum break time of 20 ms between switching states.
Models and technical specifications
The 0.5 mV version uses NB101-06-01-B and NB101-06-05-B modules. Complete systems combine one N9000 chassis with two to nine four-channel modules.
| Model | Output and channel count | Voltage accuracy | Module | Module quantity |
|---|---|---|---|---|
| N9008-06-01 | 6 V / ±1 A / 8 channels | 0.5 mV | NB101-06-01-B | 2 |
| N9012-06-01 | 6 V / ±1 A / 12 channels | 0.5 mV | NB101-06-01-B | 3 |
| N9016-06-01 | 6 V / ±1 A / 16 channels | 0.5 mV | NB101-06-01-B | 4 |
| N9020-06-01 | 6 V / ±1 A / 20 channels | 0.5 mV | NB101-06-01-B | 5 |
| N9024-06-01 | 6 V / ±1 A / 24 channels | 0.5 mV | NB101-06-01-B | 6 |
| N9028-06-01 | 6 V / ±1 A / 28 channels | 0.5 mV | NB101-06-01-B | 7 |
| N9032-06-01 | 6 V / ±1 A / 32 channels | 0.5 mV | NB101-06-01-B | 8 |
| N9036-06-01 | 6 V / ±1 A / 36 channels | 0.5 mV | NB101-06-01-B | 9 |
| N9008-06-05 | 6 V / ±5 A / 8 channels | 0.5 mV | NB101-06-05-B | 2 |
| N9012-06-05 | 6 V / ±5 A / 12 channels | 0.5 mV | NB101-06-05-B | 3 |
| N9016-06-05 | 6 V / ±5 A / 16 channels | 0.5 mV | NB101-06-05-B | 4 |
| N9020-06-05 | 6 V / ±5 A / 20 channels | 0.5 mV | NB101-06-05-B | 5 |
| N9024-06-05 | 6 V / ±5 A / 24 channels | 0.5 mV | NB101-06-05-B | 6 |
| N9028-06-05 | 6 V / ±5 A / 28 channels | 0.5 mV | NB101-06-05-B | 7 |
| N9032-06-05 | 6 V / ±5 A / 32 channels | 0.5 mV | NB101-06-05-B | 8 |
| N9036-06-05 | 6 V / ±5 A / 36 channels | 0.5 mV | NB101-06-05-B | 9 |
| Characteristic | ±1 A module | ±5 A module |
|---|---|---|
| Channels per module | 4 | 4 |
| Voltage range | 0 to 6 V per channel | 0 to 6 V per channel |
| Power | 6 W per channel | 30 W per channel |
| Voltage setpoint / readback resolution | 0.1 mV | 0.1 mV |
| Voltage setpoint / readback accuracy | 0.5 mV | 0.5 mV |
| Main current range | −1 to +1 A | −5 to +5 A |
| Low-current range | −1 to +1 mA | −1 to +1 mA |
| Low-current resolution | 0.1 µA | 0.1 µA |
| Voltage ripple | ≤ 2 mVrms | ≤ 2 mVrms |
| Channel-to-channel isolation | 500 V DC | 500 V DC |
| Output-to-ground isolation | 2,500 V DC | 2,500 V DC |
Dynamics and control response
Command response
The platform processes commands with a response time down to 1 ms.
Channel synchronization
Hardware clock and trigger signals provide multi-channel synchronization down to 200 µs.
Voltage rise time
Rise time is specified at no load and resistive full load as no more than 40 µs for a 10 to 90% transition.
Transient recovery
Transient recovery time is specified below 100 µs with a resistive load for a 10 to 90% transition.
Operating modes and programmable test functions
Program cell voltage
Cell voltage is programmed individually from 0 to 6 V and read back by each channel.
Source and sink operation
Channels deliver or absorb current to emulate charging and discharging conditions of an individual cell.
Sequence testing
Time-based setpoint sequences reproduce voltage and current profiles for automated and repeatable tests.
SOC simulation
The software supports SOC-oriented routines for representing changing cell states throughout a test cycle.
Sweep function
Programmable sweeps vary setpoints in controlled steps and simplify limit testing and characteristic measurements.
Fault simulation
Short circuit, positive or negative line interruption and polarity reversal test the BMS response to cell faults.
Typical applications
The modular channel architecture is designed for tests that require multiple cell voltages and fault conditions to be generated reproducibly and monitored centrally.
BMS HIL and functional testing
The system generates isolated cell voltages, synchronizes multiple channels and applies defined electrical fault states.
AFE and cell-monitor testing
Fine voltage programming and µA-level current measurement support channel acquisition and quiescent-current evaluation.
Automotive and e-mobility
Battery management systems for traction and low-voltage networks can be tested with repeatable cell profiles.
Energy-storage BMS
Multi-channel cell strings, temperature values and optional pack voltage reproduce common storage architectures.
Production and end-of-line
Sequences, remote control and data logging enable repeatable tests in automated manufacturing stations.
Development and validation
Sweep, SOC and fault functions support limit testing, diagnostic development and repeatable validation workflows.
Interfaces, software and automation
| Function | Implementation | Practical use |
|---|---|---|
| LAN | Standard, TCP or UDP | Remote control of one or multiple chassis and connection to the PC software. |
| CAN 2.0 | Standard | Control and cyclic transmission of voltage, current and power data. |
| CAN FD | Standard for NB101/NB102 | Higher data throughput for multi-channel test and HIL systems. |
| Hardware trigger and synchronization | Standard | Shared clock and trigger signals for synchronized channel and cascade operation. |
| PC software | Standard application software | Configuration, channel control, sequences, SOC testing, charts and data logging. |
| Local operation | 3.2-inch LCD, keys and rotary knob | Direct access to cards, channels, protection values and system settings. |
| Remote sense | Standard on NB101 | Four-wire connection compensating voltage drop in the test leads. |
System expansion and optional modules
The N9000 chassis supports nine full-size slots and one half-size slot. Cell and high-voltage modules occupy one full slot each, while the resistance module uses a half slot. Multiple chassis can be linked in high-speed master-slave mode. Units are connected by LAN, with additional clock and trigger wiring. Up to 15 slave units can be configured in the menu.
| Module type | Selection | Function |
|---|---|---|
| NB101-B | 6 V, ±1 A or ±5 A, 4 channels | Bidirectional cell-voltage and cell-current simulation with 0.5 mV voltage accuracy. |
| NB102 | 12, 24 or 36 channels; up to 11.11 MΩ | Programmable resistance, NTC and sensor simulation with 1 Ω or 10 Ω resolution depending on the model. |
| NB106-1200 | 0 to 1,200 V, 100 mA, 120 W | Programmable high-voltage source for pack-voltage and BMS testing. |
| NB106-2500 | 0 to 2,500 V, 100 mA, 250 W | High-voltage module for higher pack voltages with CV, CC, sequence and sweep operation. |
Installation and infrastructure
| Characteristic | N9000 chassis |
|---|---|
| Form factor | 19 inch, 4U |
| Dimensions | 177 × 482 × 600 mm including handles |
| Weight | Approx. 19 kg, depending on configuration |
| AC input | Single-phase 100 to 240 V AC, 47 to 63 Hz |
| Input current | ≤ 9 A at 220 V; ≤ 18 A at 110 V |
| Earth leakage current | < 3.5 mA at 230 V AC |
| Operating temperature | 0 to 40 °C |
| Storage temperature | −20 to 60 °C |
| Relative humidity | 5 to 90% RH, non-condensing |
| Altitude | < 2,000 m |
| Cooling | Forced-air cooling; intake and exhaust openings must remain unobstructed. |
Protection and safety functions
Overvoltage protection
A programmable threshold limits output voltage and switches off the affected output when triggered.
Overcurrent protection
The configured protection value limits channel current and disables the output when exceeded.
Overpower protection
Maximum output power can be limited by channel and the output is switched off when the limit is exceeded.
Safety interlock
Outputs can only be enabled while the dry-contact interlock circuit is closed.
Electrical isolation
NB101 channels are isolated by 500 V DC channel-to-channel and 2,500 V DC output-to-ground.
Defined output state
The OFF state can be set to a 0 V normal condition or a high-impedance relay condition.
N9000 FAQ
How does this version differ from the other N9000 variant?
This page covers the NB101-B modules with 0.5 mV voltage accuracy and 0.1 mV setpoint and readback resolution.
Which channel counts are available?
Complete systems cover 8 to 36 cell channels in four-channel increments.
Which current ranges can be selected?
Per-channel variants are available with ±1 A and 6 W or ±5 A and 30 W. Both also provide a low-current range down to ±1 mA.
Can the system absorb current?
Yes. NB101 channels are bidirectional and operate as source or sink within their specified current limits.
Which fault conditions can be simulated?
Supported functions include short circuit, interruption of the positive or negative lead and polarity reversal.
Can the N9000 system be expanded?
Yes. Additional chassis can be cascaded in a master-slave arrangement, with up to 15 slave units configurable in the menu.
Which interfaces are available?
The chassis supports LAN, CAN 2.0 and CAN FD, together with hardware trigger and synchronization signals.
Can temperature and pack-voltage simulation be integrated?
Yes. Optional NB102 resistance modules and NB106 high-voltage modules can be installed alongside the cell modules.
Technical consultation and project enquiry
For selecting channel count, current range, accuracy class and optional resistance or high-voltage modules, ET System can review your BMS, AFE, HIL or EOL requirements with you.
