Danfoss BLN-95-9076-2 MC300 Microcontroller Owner’s Manual

MC300
Microcontroller
BLN-95-9076-2 Issued : April 2003

DESCRIPTION

The MC300 Microcontroller is a multi-loop controller that is environmentally hardened for mobile off-highway control system applications. The MC300 Microcontroller has the response speed and capacity to control multiple electrohydraulic control systems either as a stand-alone controller or networked with other similar controllers via a high-speed Controller Area Network system.
The MC300 is ideally suited for dual-path hydrostatic propel systems incorporating closed-loop speed and horsepower control. Additionally, closed- loop position control systems using servo valves and proportional flow control valves are easily accomplished. Up to four bi-directional servo loops can be used.
The controller can interface with a wide variety of analog and digital sensors such as potentiometers, Hall-effect sensors, pressure sensors, pulse pickups and encoders.
The use of the I/O features and the control actions performed are defined by firmware installed in the MC300’s program memory. The firmware is typically installed by downloading the desired code from another computer via the RS232 port. Re-programmability provides a high level of device function flexibility. Either factory or in-field programming is possible.
The MC300 controller consists of a circuit board assembly inside of an aluminum die-cast housing. Three connectors, designated as P1, P2 and P3 are provided for electrical connections. P1 (30 pin) and P2 (18 pin) are the main I/O and power connectors; together they mate to the 48 pin board-mounted header, which protrudes through the bottom of the enclosure. P3 is a circular connector for RS232 communications such as reprogramming, displays, printers and terminals.

FEATURES

• Multi-loop control capability for control of (4) bidirectional servo loops or (2) bidirectional and (4) unidirectional loops.

• Powerful 16 bit Infineon C167 microcontroller:
  – Fast,
  – Versatile,
  – Controls multiple machine functions with fewer parts.

• Controller Area Network (CAN) provides high speed serial communications with up to 16 other CAN compatible devices and meets the speed requirements of SAE network Class C specifications.

• Rugged aluminum die-cast housing withstands the environmental rigors typically found in mobile applications.

• Four-character LED display provides information for setup, calibration, and troubleshooting procedures.

• Flash memory accessible through a dedicated RS232 port. Allows programming without changing EPROMs.

• Hardened power supply operates over the full range of 9 to 36 Volts with reverse battery, negative transient, and load dump protection.

• Convenient RS232 port connector for data communication with other devices such as displays, printers, terminals, or personal computers.

• Expandable via an internal 50 pin connector for custom I/O boards.

ORDERING INFORMATION

• For complete hardware and software ordering information, consult the factory. The MC300 ordering number assigns both hardware and software.
• For product structure information see page 5.
• Mating I/O connector: order part number K12674 (bag assembly).
• Mating RS232 connector: order part number K13952 (bag assembly).

SOFTWARE FEATURES

MC300 software architecture is designed to utilize Danfoss state-of-the-art application software engineering tools including the Kernel operating system, Danfoss Control Objects and Packages, and WebGPI graphical user’s interface. Danfoss software engineering methodol allows application software transportability across microcontroller platforms and facilitates rapid engineering of a wide range of mobile machine control solutions including:

• Engine anti-stall and load controls
• Automotive control
• Wheel assist
• Closed loop speed control
• Pressure control
• Closed loop dual path control
• Position control such as machine elevation, gravity reference and coordinated cylinder position
• Steering control for auto steering and coordinated steering requirements
• Application rate control
• Networking

TECHNICAL DATA

INPUTS
Four analog (DIN 0, 1, 2, 3) (0 to 5 Vdc) intended for sensor inputs (10 bit resolution). Protected against shorts to ground. Two inputs available with 14 bit A/D resolution.
Four speed sensors (PPU 0, 1, 2, 3) (dc-coupled) for use with solid state zero speed pulse pickups and encoders, any of which can be configured as general purpose analog inputs.
One speed sensor (PPU 4) (ac-coupled) for use with alternators or variable reluctance pulse pickups.
Nine digital inputs (DIN) for monitoring external switch position status for pull up (to 32 Vdc) or pull down (to <1.6 Vdc).
Four optional membrane switches (DIN 12) located on housing face.
OUTPUTS
Two low current/bidirectional current drivers (±275 mA maximum into a 20 ohm load). Protected for shorts to ground.
Four high current 3 amp drivers, either ON/OFF or under PWM control. These can be used to drive 12 or 24 Vdc on/off solenoids, servo valves or proportional valves.
Short circuit limited to 5 amps. (Now includes current feedback.)
Optional display.
COMMUNICATION
Controller Area Network (CAN) for communications with other CAN compatible devices. Supports CAN 2.0A/ 2.0B standards.
RS232 port connected through a 6 pin MS connector.

POWER SUPPLY

Voltage range 9 to 36 Vdc.
5 Vdc regulator for external sensor power (up to 0.5 amp) which is short- circuit protected.
MEMORY
See Hardware Structure, page 5.
LEDs
Four character alphanumeric LED display; each character is a 5×7 dot matrix.
Two LED indicators, one LED used as a power indicator, the other LED under software control for use as fault or status indication.
ELECTRICAL CONNECTIONS
48 pin board mounted Metri-Pak I/O connector mates with a 30 pin and 18 pin cable connector.
6 pin circular MS connector for RS232 communication.

ENVIRONMENTAL

OPERATING TEMPERATURE
-40°C to +70°C (-40° F to 158° F).
MOISTURE
Protected against 95% relative humidity and high pressure washdowns.
VIBRATION
5 to 2000 Hz with resonance dwell for 1 million cycles for each resonant point run from 1 to 10 gs.
SHOCK
50 gs for 11 ms in all 3 axes for a total of 18 shocks.

ELECTRICAL

Withstands short circuits, reverse polarity, over voltage, voltage transients, static discharges, EMI/RFI and load dump.

DIMENSIONS

Dimensions in Millimeters (Inches).
Danfoss recommends standard installation of the controller to be in the vertical plane with connectors facing down.

CONNECTOR PINOUTS

HARDWARE STRUCTURE

CUSTOMER SERVICE

NORTH AMERICA
ORDER FROM

Danfoss (US) Company
Customer Service Department
3500 Annapolis Lane North
Minneapolis, Minnesota 55447
Phone: 763-509-2084
Fax: 763-559-0108

DEVICE REPAIR
For devices in need of repair or evaluation, include a description of the problem and what work you believe needs to be done, along with your name, address and telephone number.

RETURN TO

Danfoss (US) Company
Return Goods Department
3500 Annapolis Lane North
Minneapolis, Minnesota 55447

EUROPE
ORDER FROM
Danfoss (Neumünster) GmbH& Co.
Order Entry Department
Krokamp 35
Postfach 2460
D-24531 Neumünster
Germany
Phone: +49 4321 871-0
Fax: +49 4321 871-284

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>