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Introduction |
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NCT 201 control
panel and peripheries |
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NCT 201 is
built on 3 base components: |
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1. Windows Embedded CE Professional operation system (MICROSOFT)
2. EtherCAT communication channel between CNC and it’s peripheries
(BECKHOFF)
3. EnDat22 (physichal) absolute measurement system (HEIDENHAIN)
The WINDOWS CE central processing unit
(CPU) of the NCT 201 is behind the monitor. The main pointing
device is the touchscreen, but on the right side of the
monitor 4 USB ports can be found, where optional pointing
devices (mouse, track ball, touchpad) can be connected if
needed. The CPU connects to the peripheries via EtherCAT
bus, and with one ETHERNET cable the panel can be connected
to a computer network. The system program of NCT 201 fits
WINDOWS CE operation system perfectly, exploiting it to
its full potential, like its professional file management,
computer peripheries management (data storage devices, printers,
data input peripheries, pointing devices, etc.), and other
services (network, internet, remote machines, picture and
video displaying, playing sound files, etc.).
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This is
a high speed ETHERNET (serial bus), which consists of
two main components, the HOST central unit, and the
SLAVE peripheries. The HOST is connected to the closest
periphery by an UTP cable, and from here via another
UTP plug it can be connected to the next one. The system
can be optimally chained from there and expanded by
SLAVE units. Through the bus CNC recognizes the peripheries,
and if needed it downloads the suitable parameters to
ensure proper operation.
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It is a
physical absolute measuring system, which is available
in linear scale and rotary encoder. The rotary encoder
can be absolute during single or multi turn. In one
rotation the rotary encoder distinguishes 33554432 positions
and till 4096 rotations it generates the absolute position.
The NCT 201 can receive both the rotary encoder and
the absolute linear scale during single or multi turn.
Since the NCT servo motors come mounted with multi turn
EnDat 2.2 absolute measuring system, therefore the reference
point switch is not necessary anymore to be mounted
on the machine tool. After turning on the machine the
machining can be started immediately, there is no uncertainty
because of reference point pickup..
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MECHANICAL
DESIGN:
Central unit:
The NCT 201 is new in many aspects even in appearance, its
form greatly differs from the well known CNC built-in to
the front panel or the panel control style. The CPU of the
basic control panel design is behind the 19” LCD display
all of which is integrated with the already well-known industrial
control panel solution, in an independent boxed unit. During
the development of the CPU, the energy consumption and with
that heat production minimizing was one of the key aspects.
With the newest 1.8 GHz speed, low consumption Intel® Atom™
microprocessor, the CPU doesn’t require active cooling and
doesn’t include an external fan. On the right side of the
box, 4 USB plugs can be found, which we protect with removable
plastic lid, to ensure the IP54 safety. The buttons can
be found below, when they are pushed they make a clicking
sound, using touch probe emits a whistle sound via speakers,
which can also play WINDOWS compatible sound files (we are
planning to build in a VOICE ADVISER).
The closed boxed unit can be fixed by connecting screws
to the chosen console, no more boxing is needed. Naturally
if needed it can be build into the front panel, as it is
customary with CNC control panels.
NCT provides its customers with fixtures (build in frame,
screws, supporting arm, suspending arm and rotating joint
components) for the professional construction of any installation
design..
Build in variations:
1. Armed type panel, up or down fixing, or rotating connection
2. Building in the panel with hidden fixture on the backside
3. Building in the panel via screws on the operating side
Machine keyboard:
To the NCT 201 control panel machine builders can connect
any machine keyboard, not necessary to buy an NCT offered
one. The flexible system allows the users to create their
own machine interface via the INPUT/OUTPUT PLC lines, in
which they can optionally combine the touch screen’s virtual
and the real buttons of the separate panel.
The optional machine operator’s console to NCT 201 matches
the monitor module in size, mechanical style, and colour.
It is also perfectly compatible with the monitor when they
are built-in or on a supporting arm, as they form an integrated
system.
On the NCT 201 control panel the next to the usual operating
devices by NCT (handwheel, feeding override, jog, mode buttons,
emergency stop button, etc.), 20 pcs users button can be
found as well.
The buttons can be taken out on the operator side, and the
titles under them can be changed as the machine builder
wishes. Every button on the NCT control panel has LED lighting
that can be seen from every direction.
Programmer keyboard:
In basic conditions for data input the operator can use
the virtual keyboard on the monitor. The keyboard image
on the monitor only appears and takes up space, when it
is needed for data input. As it is merely virtual, it is
easily adjustable for different languages, which the operator
can easily change if needed. The size and placement of the
buttons makes the data input very comfortable. The speaker
from the downside of the panel emits a clicking sound when
the buttons are touched. In order to protect the touch screen
a self-adhesive guard foil is used. Since the usage of virtual
keyboard does not cause mechanical deformation, they cannot
wear out, only the foil can become mat, or scraped, both
of which can be solved by changing the guard foil once in
a few years.
If the operator prefers
QWERTY keyboard, that can easily be connected via any of
the 4 USB plugs, any pc keyboard can be used. The wired
or wireless keyboard can be put in a fixed drawer under
the NCT panel and the machine keyboard, in an ergonomic
and comfortable position. On shelf under the keyboard documents,
such as workpiece drawings, can be put.
For the wireless keyboard preferred by NCT, we also provide
foil cover, which can protect the keyboard even in dusty
places ensuring the long life of the keyboard.
Naturally flexible keyboard can be used as well as industrial
keyboard.
Peripheries:
The peripheries of NCT 201 connect to CPU via EtherCAT (industrial
ETHERNET). The peripheries can be NCT IO units, NCT drives,
but they can be other standard EtherCAT peripheries from
other manufacturers as well (e.g.: BECKHOFF, YASKAVA, ABB,
HITACHI, BAUMÜLLER, LENZE, SEW, WAGO, etc.). The system
is designed so that behind the ‘train’, which has EtherCAT
connection, via an LVSD bus and a flat cable ‘waggons’ of
different functions and sizes can be connected. This assembled
train is on an OMEGA track, frequently used in the construction
of electrical cabinets. Presently 11 types of waggons of
different functions are offered by us, but we are expanding
the selection, and our business partner can request custom
waggons as well.
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IO ‘train’ units:
1. EHU: the locomotive of the head unit. EtherCAT connects
to this.
2. I16:16 pieces 24 VDC INPUT/1-line
3. I32:32 pieces 24 VDC INPUT/1-line
4. I16S:16 pieces 24 VDC INPUT/3-line for inductive sensors,
but tons, switches. Here to every input there is a seperated
24 V and 0 V connecting point.
5. O8RM: 8 pieces of OUTPUT/10 A relay with alternating
contact
6. O8R: 8 pieces of OUTPUT/5 A relay with locking contact
7. O16: 16 pieces of transistor OUTPUT/0,5 A/24 VDC
8. MU2: 2 pieces of TTL encoder input and 2 pieces of
analog out put (15 bit)
9. MUED: 2 pieces of EnDat22 input
10. MUSI: 2 pieces of SINCOS encoder input
11. ANI: 8 pieces of analog input. It can be used in 7
pieces/12 bit channel for example for temperature measurement
and in 1 piece/16 bit channel for analysis of vibration.
12. TCP: 2 pieces of touch probe connection.
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Drives:
The new NCT drives are perfectly compatible EtherCAT peripheries.
They can be connected to the CPU of the NCT 201 control
panel via one EtherCAT bus. The drive gets the speed command,
and the CNC software the absolute position via this wide-band
channel. The signals of the measuring system of the servomotors
are received and evaluated by the servodrives. The measuring
system of the motors can be absolute (EnDat22), or incremental.
Motors:
The development of NCT servomotors is one of the most successful
in our R&D department. The NCT A, Ai, AiS, AMS and TORQUE
motors satisfy all customer demands. We developed our asynchronous
motors in design, size, speed, and electric parameters especially
for machine tools. All of our motors can be ordered with
EnDat22 absolute and incremental measuring systems.
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10 MOST IMPORTANT
ADVANTAGES OF NCT 201 COMPARED TO PREIOUS MODELS:
1. Because of WINDOWS CE PROFESSIONAL this control panel provides
all WINDOWS operating system functions, such as the WINDOWS
compatible file managing, keyboard usage, USB, ETHERNET peripheries,
remote machine, etc.
2. The updating and replacement of the system software, parameter
list, PLC for the NCT 201 control panel, or NCT servo drives
requires merely downloading them from a PENDRIVE or via ETHERNET.
The new system software, or parameter variation when downloaded
from the NCT homepage, can be installed easily without professional
help from NCT.
3. The drive parameterization does not require any external
device. Using the parameterization software of the control
panel the parameters of the drives can be set, or on the monitor
interface various diagnostic function assistances help you
to find the most optimal settings.
4. The picture of NCT 201 can be changed and saved easily,
and after that the customized picture appears at every start
up.
5. The integrated PLC of NCT 201 can be programmed by using
the well-known LADDER system. Even though in this programming
system creating a PLC can take up more time and attention,
it does worth it during the operation of the machine, the
maintenance and the repair personnel can work more efficiently
in this system. In the PLC window of the control panel the
ladder can be shown graphically, which illustrates logical
conditions and processes during the “green stream” process.
We provide a high level language (PYTHON) for PLC programmers,
machine builders to create their own user interface.
6. One of the main advantages of NCT 201 is the multi channel
design. This means that there are many logical CNC controls
in one physical unit. Every channel is a separate CNC control,
which executes their own technological program, while constantly
coordinating with the other channels. The number of channels
is only limited by the CPU speed, there is no logical limit.
The control panel possesses all functions and services, which
are needed to help CNC automats, such as the special tool
handling, or the synchronous, coaction and superimposed axes.
7. Along with the multi channel development, the simultaneous
5 axes processing is the other focus of our R&D activity.
Our machine tool designers and motor developers created our
new tilting headstock with the most advanced technical solutions
(with NCT TORQUE motor), which can be adapted in various NCT
machining centers. By the cooperation of our machine tool
and software development we provide our customers with the
most user-friendly programming and user interface for 5 axes
processing.
8.Any threading function can be built in easily, because of
the flexibility of our software and hardware system. The operator
of NCT 201 can change the turning speed, or even turn off
the spindle during threading. By using the thread corrector
function, when the spindle is stationary, the thread cut can
be set in and the control panel ensures the recutting of the
thread.
9. Nowadays a CNC control panel cannot lack programming and
graphical testing during machine processing, which is naturally
provided in NCT 201.
10. Though the most effective CNC programs are still written
in G code, during unique or small series machining, the programming
time should be reduced, with which SMART NCT programming can
help. The contours of the workpiece can be drawn even with
finger, and by filling in a few dialogue tables, it can be
finished in the matter of minutes, and then the processing
can be graphically simulated. Naturally it can be done during
the execution of another technological program.
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