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BES/C for up to 8 axes with DC, AC servo, SERCOS III, or stepping
motors (kind of motors may be mixed) in 19" Subrack | |
BES/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 | |
Both 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. |
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.
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. |
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 |
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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 |
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 |
Interpolation: 2 D linear 2 D circular 3 D linear | |
Different scales for each axis are
possible, e.g. a divider head (rotary axis) together with linear axis | |
Position control / lag error | |
Software limit switch possible (only one reference switch at each axis is
needed) | |
Look ahead: Up to 100 elements, size is adjustable (element preview for
speed enhancement and monitoring) | |
Smoothing of cornered curves by Spline interpolation. The machine will run
much more smoothness. | |
Up to 8 axis, mixed operation servo / stepping motor is possible | |
The 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. | |
Stop and repeat a part of the work, e.g. after a problem with the tool. | |
Normal cycle-time: 1/1000 sec. (5 axes). The cycle the position of the
axes is detected and the correction values are put out. | |
Block-cycle time: 2/1000 sec. (average value). Up to 500 line
segments per second may be processed. | |
Program: Loaded into the flash-memory of the CPU module | |
Configuration: Edited via PC | |
Connection of divider head, rotary axis possible | |
Tool length sensing and a tool changer may be used. | |
Surface sensing by using one of the input signals. |
Most characteristic are identical to the controller BES/C.
Difference to the
controller BES/C:
Lower cost | |
Limited to 4 axis stepping motors (+ up to 6 SERCOS III axes) | |
Only for stepping motors or SERCOS III motors | |
Maximum output frequency: 350 kHz (BES/C: 450
kHz). (on request up to 900 kHz output frequency) May be used for micro stepping. | |
Easy to connect. E.g. every limit switch is connected with a separate
connector | |
Compact (220 mm x 165 mm x 51 mm) | |
The 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. |
Both controllers have these features together with the Machine keyboard M24:
Stop / Start / Cancel Emergency Stop | |
Hand controlled movement, continues with different speed or in steps of 0.001mm 0.01mm 0.1mm or 1mm | |
Reference point setting | |
Feed correction 20 .. 120% | |
Spindle rotation correction 50 .. 200 % | |
Repetition of parts of the work piece | |
Switching some of the outputs e.g. the spindle | |
3 digit display for diagnostics |
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