DC SEM Motor Controllers
For motors up to 3.5 kW


Utilizing the same innovative design techniques as the Powerpak the Micropak range offers an ultra compact solution specifically for use on low voltage, low power applications.

The Micropak
is designed for use with separately excited motors where the need for traction related contactors (forward / reverse, regeneration and field weakening) is eliminated.

 
Features
Compact design
Silent operation
CAN communications
RS232 capability
Integrated logic unit
Built-in speed control
Calibrator interface
FLASH memory
IP66 protection

 
View the Micropak™ brochure

 

Separately Excited Motors (SEM)
SEM offers a contactor-free solution to regenerative braking and field weakening, with improved efficiency. The Micropak™ offers improved speed control without added sensors. Micropak™ can either be used in single or twin motor systems, where it can be
configured as master or a slave.

 
 

Enhanced Reliability and Performance
Sevcon's patented switching design delivers peak dependability and performance as well as silent operation utilizing a 16 kHz high switching frequency.

 

 

 

CAN Communications
The Micropak™ controllers use the Sevcon Controller Area Network (CAN) serial  bus. This allows multiple controllers to effectively communicate within the vehicle system to increase safety and reliability with the minimum of wiring.

 
 

FLASH Memory for Flexibility
Application programs are stored in FLASH memory allowing reprogramming in place for increased flexibility.

 
 

Rugged Endurance
Sealed-for-life design combined with rigorous testing ensures that Millipak controllers deliver unparalleled reliability.


 
 

Inputs and Outputs
Standard configurations of digital and analog inputs and outputs (I/O) are especially suitable for twin motor applications. Functions
include throttle inputs, limit switch inputs, contactor drives, hour counters, and instru-mentation. This allows use as a stand-alone
unit or to be integrated into a vehicle system.

 
 

Configuration and Service Tools
A PC with the Sevcon PCpak™ configuration system or a hand-held calibrator can be used to adjust parameters and reprogram the controller via the calibrator port.

 

General Specifications

  24/36 VDC version  
  Battery voltage 24/36 VDC  
  Peak current 180 A / 270 A* (1 minute rating)
  Continuous current 75 A / 100 A* (1 hr rating)
  Field current 30 A  
  Max. power 2.6 kW  
  48 VDC version    
  Battery voltage 48 VDC  
  Peak current 270 A (1 minute rating)
  Continuous current 100 A (1 hr rating)
  Field current 30 A  
  Max. power 3.6 kW  
  Operating temperature -30 to + 40ºC (ref. SAE J1211)
  Storage temperature -40 to + 70ºC (ref. SAE J1211)
  Ingress of dust and water IP66  
  Humidity 95% (at 60ºC)
  Vibration 6 g (NAVMAT P9492 random vibration test profile)
  Switching frequency 16 kHz  
  *depending on model

Dimensions