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MD800
MD800 is a new generation of multi-axis systems, designed primarily with machine manufacturers (OEMs) in mind. It is an excellent energy-saving solution for multi-drive devices and systems, from simple belt conveyors to complex printing machines.
Description
MD800 – compact and energy saving multi-axis frequency converter!
Where can the MD800 be used?
About MD800:
- Logistics;
- Packaging and warehousing systems;
- Wood, stone and metal machine tools;
- Food processing;
- Printing;
- Textile dyeing and fan and pump systems.
- Modular design (power supply and 1 to 8 drive axes).
- Single-phase 230V or three-phase 400V power supply versions.
- STO SIL3 function.
- Reusing braking energy.
- Drive power from 200W to 7.5kW.
- Built-in communication: CANopen, Modbus RTU, CANlink.
- Communication cards: EtherCAT, Modbus TCP, EtherNet/IP, ProfiNet.
- Built-in inputs/outputs: 4 digital inputs, 4 digital inputs/outputs, 2 analog inputs, 1 relay output.
- Expansion cards for additional inputs and outputs.
- Free utility software.
- CE certificate.
Reduction of mounting space by up to 50% compared to independently mounted inverters
TECHNICAL SPECIFICATIONS
| Type of load | Synchronous or asynchronous motor |
| Output frequency resolution | 0.01 Hz (digital reference) 0.025% x maximum frequency (analog reference) |
| Carrier frequency | U/f control: 0.8 kHz to 15 kHz (default 6 kHz) SVC Control: 2 kHz to 7 kHz (default 6 kHz) The carrier frequency is adjusted automatically according to the heat sink temperature. |
| Control method | For 3-phase asynchronous motors: scalar U/f, sensorless vector control (SVC). For permanent magnet synchronous motors: sensorless vector control (SVC). |
| Speed regulation ratio | 1:50 – asynchronous motor, U/f control 1:100 – asynchronous motor, SVC control |
| Accuracy of speed regulation | ±1.0% – U/f control ±0.5% – SVC control |
| Speed fluctuations | ±0.5% – SVC control |
| Torque response | < 20 ms – SVC control |
| Torque control modes | SVC |
| Current overload | Heavy Duty: 115% of rated current for 1 hour, 150% for 1 minute, 178% for 2 seconds Normal Duty: 110% for 1 minute |
| U/f curves | linear, multi-point, square, fully isolated, partially isolated |
| Acceleration/deceleration curves | linear, S-curve mode 1, S-curve mode 2 |
| Built-in PID control | two groups of proportional-integral-derivative parameters |
| Ways to start the engine rotation |
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| Ways to set the frequency |
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| Wobble function | Many ways to control the frequency of the triangle wave |
MD800 detailed module configuration
| 1. Two expansion card slots in combination: |
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| 2. 24VDC emergency power supply. | |
| 3. STO SIL3 independent for each drive axis. | |
| 4. Common DC bus for lower operating costs. | |
| 5. One common rectifier (power supply) with the following power: |
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| 6. Power input terminal and optional dynamic braking terminals. | |
| 7. Two-axis drive modules with the following powers: | 200 V (HD): 0.2 – 2.2 kW 200 V (ND): 0.4 – 3.7 kW 400 V (HD): 0.4 – 3.7 kW 400 V (ND): 0.75 – 5.5 kW |
| 8. Cable support for EMC shield grounding (optional accessory). | |
| 9. Single-axis drive modules with the following powers: |
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MD800 comprehensive functionality
- Individual safe torque off (STO function) for each drive axis
- Work with three-phase asynchronous and synchronous motors with permanent magnets
- +24 VDC control power source
- IP40 protection level
- Remote LCD Keyboard (Optional)
- Free PC utility software available
- Work in two modes:- work with heavy load (Heavy Duty mode): 150% overload;- normal operation (Normal Duty): overload 110%
Energy saving – lower operating costs!
The braking energy of individual drives of the MD800 package returned to the DC bus is reused by inverters operating at the same time.
Flexible communication
Built-in inputs and outputs:
Standard communication (built-in):
Two expansion slots:
- 4x DI digital inputs
- 4x DI/DO digital inputs/outputs
- 2x AI analog inputs
- 1x RO relay output
- USB startup port, CANopen, CANlink, RS485 (Modbus RTU)
- I/O expansion cards
- EtherCAT, ProfiNet, Modbus TCP, EtherNET/IP communication cards
Low installation and commissioning costs are ensured by:
- Plug-in connector system with spring terminals
- Simplified wiring
- Reduction of external elements:
- Common EMC filter (C2 compliant)
- Common DC power rail
- Fuses/circuit breakers
- Built-in common braking module (option)
Compact dimensions – minimization of installation space
- Common height and depth: 182 mm x 160 mm
- Rectifier width: 99.5 mm
- Drive width: 49.5 mm
Designed to work in difficult industrial conditions
- High quality conformal coating (3C3 and 3S2)
- Operating temperature range: -20 to +60°C
- Working altitude: up to 4000 m
- Separate cooling channel for the heatsink
Security and error alerting
- Short to ground after power on
- Phase-to-phase short circuit
- Motor over temperature (PTC)
- Drive overcurrent
- Converter overload (output power limitation)
- Motor overload
- Overvoltage in the converter
- Converter voltage too low
- Stopping the drive in SVC mode
- Drive overheating
- Output phase loss
- Communication error
- Current detection error
- Engine auto tuning error
- EEPROM read-write error
- Protection against blocking the rotor
- Excessive speed deviation
- Engine stall alarm
