
ACS800-X04
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ACS800-X04 Overview
Drive Module Ratings
Supply Module Ratings
ACS800-X04 Multidrive Modules
The ACS800 multidrive module product range includes rectifier- and DC-supplied inverter modules and accessories especially designed for integrators, machine builders and panel builders.
The ACS800 multidrive principle based on a common DC bus arrangement enables single power entry and common braking resources for several drives. Common braking includes the possibility for regenerative braking and motor-to-motor braking depending on the motor loads in the line-up.
Special Design For System Integrators
The design of these modules is based on much smaller inverter modules.
The modules have a plug-in connector, meaning fast and easy assembling. The modules are also equipped with wheels, so they can easily be pulled out of the cabinet and pushed back for maintenance purposes.
This concept also allows pre-installation of the power cables in the empty cabinet.
Inverter and diode modules can be freely connected parallel for higher output current. This means a limited number of different module sizes and fewer spare parts.
The modularity, compact size and simplicity of the modules means a lot of savings for cabinet builders in terms of minimizing the number of cabinets and the widths.
Besides the compact design, the new ACS800 DC-supplied inverter and rectifier units include an extensive selection of options.

Product Range
Inverter Modules
Inverter modules are available in 7 different frame sizes. Frame sizes R2i to R7i start from 1.1 to 110 kW, and all the powers from 90 to 2000 kW are different configurations of R8i units, single or in parallel. The voltage range covers 380 V, 500 V and 690 V.
Supply Modules
Supply modules are available as diode-, thyristor- or IGBT based solutions.
In the diode supply units (DSU) only four different types of unit, either in single or parallel, cover the power range of 145 to 4200 kW in 380 to 690 V.
The basic features of the diode rectifier unit include automatic adaptation to 6 or 12-pulse operation and automatic control to charge the inverter capacitor banks during start-up.
The mechanical dimensions are the same in each module, making engineering and assembling very easy.
The thyristor supply unit (TSU) is used in regenerative drive systems. It contains two 6-pulse thyristor bridges in antiparallel connections. 12-pulse units can also be configured. The power range is from 470 to 3150 kW in 380 to 690 V.
An IGBT Supply unit (ISU) is used in fully regenerative drive systems. In power control it gives the same firm and gentle performance as DTC gives in motor control. The power module is hardware compatible with the inverter module. In passive mode the converter operates as the rectifier. In the active mode the IGBTs are controlled to keep the DC voltage constant and the line current sinusoidal.
Harmonic content remains extremely low due to DTC control and LCL filtering.
The power range is from 2.7 to 2900 kW in 380 to 690 V. Modules are single or parallel connected.
Braking Choppers and Resistors
In resistor braking whenever the voltage in the intermediate circuit of a frequency converter exceeds a certain limit, a braking chopper connects the circuit to a braking resistor.
Standard resistors are also available, but non-standard resistors can be used, however they must be checked case-by-case.
The power range is from 230 to 2400 kW in 380 to 690 V.
Features
Standard Hardware Features
- Frame sizes R2i to R5i control board inside of the module
- Frame sizes R7i to n*R8i control board outside of the module
- Extensive, programmable I/O
- Three I/O and fieldbus extension slots
- Inputs galvanically isolated
- Optimised design for cabinet assembly
- Modular design allowing wide variety of variants
- Compact design
- Long lifetime cooling fan and capacitors
- du/dt filters as standard in parallel connected R8i and in single or parallel connected 690 V inverter units
- Mounting on the cabinet wall frame size R2i to R7i and on the cabinet floor for R8i and the D3/D4 supply module
- Wheels and plug connectors in the R8i inverter and
- D3/D4 supply module
- Coated boards
- LCL-filter units in ISUs
Optional Hardware Features
Inverter Frame Sizes R2i to R7i
- Prevention of unexpected start-up
- DC fuses, fuse bases or DC-fuse switch
- Mechanics for tilted position assembly in R2i to R5i frame size
- Assembly plates for R7i units
- du/dt filters
- Common mode filter for motor protection
- On-off control for cooling fan with internal charging option
- Mechanical accessories in Rittal TS8 cabinets (only for R7)
- IP21 to IP54 cabinet door / roof mechanical kits
- Accessories kits
- Safe torque-off
Inverter Frame Sizes R8i to n*R8i
- Prevention of unexpected start-up
- DC fuses, fuse bases or DC-fuse switch + charging circuitry
- du/dt filters as options in 400 / 500 V
- Mechanical accessories in Rittal TS8 cabinets
- IP21 to IP54 cabinet door / roof mechanical kits
- Accessories kits
- Common mode filters for motor protection
- Safe torque-off (STO)
DSU Frame Sizes D3 to n*D4:
- Contactor (inside the module)
- RFI filter up to 1000 A
- Front end AC-fuses
- Air circuit breaker
- Mechanical accessories in Rittal TS8 cabinets
- IP21 to IP54 cabinet door / roof mechanical kits
- Accessories kits