ACS890 / 1140V liquid-cooled
Three-level power conversion for 1140 V motor systems
The ACS890 1140 V liquid-cooled three-level platform is designed for engineered high-power motor systems. Select T-frame inverter modules together with the correct front end, cooling loop, precharge and control equipment.
A 1140 V installation requires coordinated selection of the supply, DC link, inverter and motor. The ACS890 catalog lists liquid-cooled three-level inverter modules for this voltage class, including several frame alternatives at the same power. Frame selection therefore includes dimensions, installation method and thermal integration as well as electrical rating.
The largest individual inverter entry shown below is 1500 kW / 950 A. Its heavy-duty reference is 1200 kW / 712 A. This difference matters for machinery with repeated high torque or acceleration demand: a nominal 1500 kW module is not automatically a 1500 kW heavy-duty selection.
Motor identification, sensorless or feedback control, field weakening and coordinated operation can be applied according to the motor and mechanical system. For a multi-motor cutterhead or conveyor, define the control relationship between motors separately from the number of power modules used for each motor.
Three-level module selection
Compare T77 / T78, T8C / T8D, T87 / T88 and T98 entries using current, overload, frame dimensions and integration requirements.
Liquid-cooling engineering
Specify heat rejection, coolant conditions, connection layout, monitoring and residual cabinet heat before cabinet manufacture.
Project-specific assembly
Coordinate precharge, isolation/protection, feedback, PLC communication and service access with the final electrical design.
System configuration
Define the power path and supporting equipment.
Functional configuration guide, not an installation wiring diagram. Final protection, connections and component compatibility follow the engineered system documentation.
Selection data
1140 V three-level inverter modules
| Model | Class / cooling | PN (kW) | Continuous current | LD kW / A | HD kW / A | W × D × H (mm) / weight |
|---|---|---|---|---|---|---|
| ACS890-T8C-0317-11 | 1140 V AC / Liquid | 500 | 317 IN (A) | 500 / 307 | 400 / 237 | 170×595×1110 / 80.0 kg |
| ACS890-T8D-0412-11 | 1140 V AC / Liquid | 650 | 412 IN (A) | 650 / 399 | 500 / 309 | 170×595×1110 / 80.0 kg |
| ACS890-T77-0317-11 | 1140 V AC / Liquid | 500 | 317 IN (A) | 500 / 307 | 400 / 237 | 170×510×930 / 51.0 kg |
| ACS890-T78-0412-11 | 1140 V AC / Liquid | 650 | 412 IN (A) | 650 / 399 | 500 / 309 | 170×510×930 / 51.0 kg |
| ACS890-T87-0633-11 | 1140 V AC / Liquid | 1000 | 633 IN (A) | 1000 / 614 | 800 / 475 | 170×545×1090 / 75.0 kg |
| ACS890-T88-0823-11 | 1140 V AC / Liquid | 1300 | 823 IN (A) | 1300 / 798 | 1000 / 617 | 170×545×1090 / 75.0 kg |
| ACS890-T98-0950-11 | 1140 V AC / Liquid | 1500 | 950 IN (A) | 1500 / 921 | 1200 / 712 | 240×630×1260 / 130.0 kg |
Read the current correctly: inverter values are motor IN; AFE values are AC / DC currents. LD and HD cells show the catalog power / current references. Continuous ratings use the catalog conditions; where specified, LD is 110% for 1 minute in 5 and HD is 150% for 1 minute in 5. Apply ambient, installation and topology-specific derating. Dimensions are for modules, not complete cabinets.
Accessories & integration
Specify the complete system package.
| Component / option | Role and selection requirement |
|---|---|
| CHG20 | Catalog active precharge family for 1140 V systems. Confirm the selected supply and DC-link arrangement. |
| CU200 / CU200-PN / CU200-EC | Control unit matched to the required PLC interface. |
| EX-VSM-01 / EX-VSM-02 | Catalog grid-status measurement options, with application-specific scaling and sensors. |
| PL96-LA / PL9A-LA | Frame-specific parallel-reactor options: L7 / T7 / T8 or T9 respectively; use only where specified by the engineered arrangement. |
| EX-DIO-01 / EX-AIO-01 | Signals for machine control and the specified auxiliary / thermal monitoring functions. |
| Encoder extensions | HTL, TTL, resolver, SinCos or absolute interfaces matched to the actual motor feedback. |
| CP68 / CPSP / CA04-SF5 | Operator panel, mounting bracket and shielded communications cables. |
| Cooling and EMC installation package | Liquid circuit, residual cabinet cooling, cable-related filters and mounting provisions defined for the final assembly. |
Control, feedback and power must match.
Include the PLC interface, encoder, operator panel, auxiliary supply, precharge and installation hardware in the quotation. Availability and compatibility depend on the selected module and cabinet configuration.
Application engineering
Match the configuration to the duty.
Tunnel-boring machines
Review cutterhead torque sharing, acceleration, stall / overload duty and the space available for the cooling and control assemblies.
Mining and material handling
Match continuous current and repeated starting demand to the motor and driven load. Specify environmental and enclosure requirements.
Large industrial test or process systems
Coordinate speed range, feedback, regeneration and DC-link requirements. Any generator or grid-conversion use needs a configuration-specific review.
Product FAQ
Questions about 1140v liquid-cooled.
Is the 1140 V ACS890 platform liquid-cooled?
The 1140 V three-level inverter entries in the source catalog are liquid-cooled. Their cooling circuit and residual cabinet heat management are part of the project design.
What power range is shown on this page?
The selected catalog entries have PN values from 500 to 1500 kW. PN is a reference rating; continuous current and the light- or heavy-duty column determine the appropriate starting point for a motor duty.
Can the 1500 kW module run a 1500 kW heavy-duty motor?
Not automatically. ACS890-T98-0950-11 is listed with 1500 kW / 950 A continuous reference and 1200 kW / 712 A heavy-duty reference. Use the motor current and overload profile to select a suitable module or parallel assembly.
Why are there two different 500 kW and 650 kW model families?
The catalog lists different frame variants with the same electrical reference values. Compare physical dimensions, weight, installation and system compatibility before choosing the frame.
Does the 4 MW-per-cabinet claim apply to 1140 V?
The catalog’s 4 MW-per-cabinet statement is specifically for the 3.3 kV liquid-cooled three-level configuration. It is not a universal cabinet rating for 1140 V or other voltage classes.
Which precharge unit is associated with 1140 V systems?
The accessory table identifies CHG20 for 1140 V. The final precharge, contactor and protection arrangement must match the selected front end and DC-link design.
Can ACS890 control several motors on a cutterhead?
The platform supports coordinated motor control in the applicable configuration. The catalog specifies 1–4 coordinated motors separately from the 1–16 eligible parallel power-unit limit; the complete machine architecture must respect both.
What are the delivery and support arrangements?
The production schedule follows confirmation of the electrical design, cooling, cabinet layout, quantity and testing scope. INOMAX offers a standard two-year warranty under the order terms and can plan remote commissioning and project-specific support.
Engineering enquiry
Request the right configuration.
1140 V supply and motor data; continuous/peak current; load cycle; motor count; cooling conditions; enclosure; control interfaces; delivery target.
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Include your company and the page topic in the message. Manuals, drawings and certificates are supplied for the selected configuration.
