Controller
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Two Controllers and two keyboards are available:

bulletBES/C  for up to 8 axes with DC, AC servo, SERCOS III, or stepping motors
(kind of motors may be mixed) in 19" Subrack
 
bulletBES/S4  for up to 4 axes with stepping motors (normal or micro stepping),
up to 6 axes with SERCOS III motors (kind of motors may be mixed)
in small Case
 
bulletBoth controller may be used with the handheld keyboard M24 or M25
It is also possible to use the controllers without keyboard,
only some separate buttons must be mounted.
The possible functions are reduced without keyboard.

 

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Continuous Path Controller   BES/C   (DC, AC servo, SERCOS III, or stepping motors)

This controller is designed to control engraving and milling machines in the upper performance range.
The connection to the PC is realized with a RS 422 interface to get good noise immunity.
Alternative you may connect the PC via network by using an Ethernet connection with an "RJ 45" plug.
Because of the modular construction of the controller, it may be simply adapted to different requirements.

 

Mechanical construction

Chassis: 19" Subrack, 3 height units, depth: 240 mm, motherboard: multilayer
Boards: Euro format 160 mm X 100 mm, width: 8 width units
Power supply: Internal 5 Volt, +/- 15 Volt 
External 24 Volt (galvanic isolated) for keyboard and external circuit elements 
Connectors: D-Sub, different numbers of pins. All connectors are on the front side. At the back side there are no plugs.
If required, the Subrack may be build with all connector located on the back side.

Maschinensteuerung BES/T
 

Signals for axis controlling

Axis modules for stepping motors (normal or micro stepping) and servomotors are available. 
One module contains the hardware to control  two axes. 
The servo module also may control stepping motors (or mixed).

Limit switch inputs: 2 per axis, isolated with optical coupler
Reference switch inputs 1 per axis, isolated with optical coupler
   
Step motor controlling         Signals per axis, all isolated with optical coupler:
Signal output:  Step 
Direction 
Boost 
Enable
Signal inputs:  Driver-ready

Output frequency: 

Up to 480 kHz
   
Servo motor controlling

Analog output:

Set value for speed, differential signals  +/- 10 Volt

Encoder input:

Input frequency up to 1024 kHz 
2 signals phase shift of 90°, RS 422

Power supply of encoder:

5 volt and 24 volt encoder are selectable.
5 volt  to supply the encoder are generated on the board 

SERCOS III:

Connected via network connector RJ45

 

I/O-Control
 
At least one I/O-board is needed. To expand I/O more than one board may be used.

Spindle control

Analog output

Rotary speed  0...10 Volt, Differential signal

Signal output:

Spindle on / off, isolated with optical coupler

Signal Input:

Spindle ready, isolated with optical coupler
   
I/O control      all signals isolated with optical coupler (or relay)

Signal output:

8 transistor 0.5A 2-pole,  function free programmable

Signal input:

8 optical isolated inputs, 2-pole, polarity don't care, function free programmable

Security signals:

Output one relay switch from watchdog (closed while processor is not stopped)
Emergency Input

 

Processor board: 

CPU:

32 Bit Processor  ColdFire® MCF 5282

Interface to PC:

- Serial   RS 422 board for PCI slot, 480 k baud
- Network Ethernet connection with an "RJ 45" plug

Interface to machine keyboard:

Serial interface, 4800 baud, current loop

 

Software

bulletInterpolation: 2 D linear 2 D circular 3 D linear
 
bulletDifferent scales for each axis are possible, e.g. a divider head (rotary axis) together with linear axis 
 
bulletPosition control / lag error
 
bulletSoftware limit switch possible (only one reference switch at each axis is needed)
 
bulletLook ahead: Up to 100 elements, size is adjustable (element preview for speed enhancement and monitoring)
 
bulletSmoothing of cornered curves by Spline interpolation. The machine will run much more smoothness.
 
bulletUp to 8 axis, mixed operation servo / stepping motor is possible
 
bulletThe automatic movement may be interrupted by an stop command.  After moving the machine by hand control, the controller will find back to the position of the interrupt and will proceed exact at this position.
 
bulletStop and repeat a part of the work, e.g. after a problem with the tool.
 
bulletNormal cycle-time: 1/1000 sec. (5 axes). The cycle the position of the axes is detected and the correction values are put out.
 
bulletBlock-cycle time: 2/1000 sec.  (average value). Up to 500 line segments per second may be processed.
 
bulletProgram: Loaded into the flash-memory of the CPU module
 
bulletConfiguration: Edited via PC
 
bulletConnection of divider head, rotary axis possible
 
bulletTool length sensing and a tool changer may be used.
 
bulletSurface sensing by using one of the input signals.
 

 

 

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Continuous Path Controller   BES/S4  (stepping motors or SERCOS III)



Most characteristic are identical to the controller BES/C.

Difference to the controller BES/C:
 
bulletLower cost
 
bulletLimited to 4 axis stepping motors (+ up to 6 SERCOS III axes)
 
bulletOnly for stepping motors or SERCOS III motors
 
bulletMaximum output frequency: 350 kHz  (BES/C: 450 kHz).
(on request up to 900 kHz output frequency)
May be used for micro stepping.
 
bulletEasy to connect. E.g. every limit switch is connected with a separate connector
 
bulletCompact (220 mm x 165 mm x 51 mm)
 
bulletThe inputs for sensors and the outputs may not be expanded.
Connections to PC, keyboard, axes, reference switches, spindle and emergency stop circle are available.
Extra are 9 inputs and 12 outputs free for extended use.

 

 

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Both controllers have these features together with the Machine keyboard M24

bulletStop / Start / Cancel
Emergency Stop
 
bulletHand controlled movement,
continues with different speed or
in steps of   0.001mm   0.01mm   0.1mm   or  1mm
 
bulletReference point setting
 
bulletFeed correction  20 .. 120%
 
bulletSpindle rotation correction  50 .. 200 %
 
bulletRepetition of parts of the work piece
 
bulletSwitching some of the outputs e.g. the spindle
 
bullet3 digit display for diagnostics

m24 Gesamtansicht

 

 

 

 

 

 

 

 

 

 

New type of keyboard, the M25:

It includes all functions of the M24, but you also have a LCD-display to see the position of up to 4 axis.

 

Send an request for more Information to BES

 

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