ซ่อม Nidec Mentor MP / Control Techniques Mentor ii
Mentor MP DC Drive
Features
- Models available for two or four quadrant (regenerative) operation
- 25A to 7400A, 24V - 480V / 500V - 575V / 500V - 690V
- Optional high-brightness LED or multi-language LCD keypad, simple configuration using plain text
- Modular parallel connection for higher power motor operation
- 12/24 pulse operation to minimize harmonics
- IP20 (NEMA 1) protection for size 1, IP10 (open chassis) for size 2A and 2B, and IP00 (open chassis) for size 2C and 2D for easy, low cost installation
Protection
- Over current
- Over temperature
- Phase loss
- SCR/Thyristor junction temperature
- Feedback loss
- Field loss
- Armature open circuit
Control & Performance
- Internal field controller with intelligent field weakening means that for 90% of applications no additional external controller is required
- Frame size 1 to 8A
- Frame size 2 to 20A
- Flux control for enhanced open loop performance
- Optional FXMP25 external field controller for current fields up to 25A
- Digital link for field control from Mentor MP or Mentor II
- Standalone digital control mode for simple application
- Flux control for enhanced open loop performance
- Intelligent field weakening
- Field forcing – for high dynamic machine reversal
- Field reversal – low dynamic machine reversing using two quadrant main stack
- Mentor MP has a field control mode for fields requiring greater than 25A
Communication & Expansion
- Serial port for Modbus RTU and PC communications
- 3 Universal option module slots
- High performance PLC and motion control
- Ethernet and Fieldbus communications
- Connectivity to additional feedback devices
- Additional I/O
- Galvanically isolated control
- Smartcard for drive parameter back-up and copying
- Integrated PLC as standard
Control Functions
- PID controller
- Motorized potentiometer
- Digital lock (Slave operation from master encoder)
- Open loop control using estimated speed
- Closed loop control using tacho-generator feedback
- Incremental encoder feedback
- Optional SinCos, SSI, Hiperface and EnDAT connectivity
Performance
- 32 bit microprocessor
- 35μs current sampling time
- Speed controller and ramps update 250μs
- Autotune features for armature, field current loops and speed loop
Current Ratings
The power ratings for the 480V, 575V and 690V configurations are shown below.
The continuous current ratings given are for a maximum ambient temperature of 40°C (104°F) and an altitude of 1000m (3,300ft). For operation at higher temperatures and altitudes de-rating is required. Overload of 150% for 30s is available with ambient temperature of 40°C (104°F) up to a maximum of 10 repetitions per hour.
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