The complete BK MIKRO system includes
- A scanner
- A control unit （with I/O extension module as option）
- A connection cable
The wand of the scanner inspects object positions or ranges potential-free according to the machine cycle. A micro-computer based control unit triggers the wand movement by an external signal or a signal from the PROFIBUS-Master （PLC）. The scanning result is then compared to the nominal value in the control unit （by means of “teach-in” or programmed parameters） and passed on as “o.k.” or “k.o.” message via relay contacts （digital I/O） or via PROFIBUS to the machine control. Any deviation can trigger an instantaneous machine stop ensuring that the machine doesn't crash and also prevents bad parts from being manufactured.
From simple tool breakage monitoring in a single head machine to the control of a wide range of different tool lengths in the magazine of a machining center （including their correct storage） to the inspection of profiles with the highest scanning precision, BK MIKRO® offers all functions for checking production processes:
- Tool monitoring: breakage / presence / holding / detection
- All functions controlled by a one-chip microcomputer.
- O.K. or K.O. indication by LEDs enabling direct control of the test station.
- Intensity of wand is adjustable e.g. for sensitive drills with small diameters.
- Easy mounting of insulating material housing on profile rails according to DIN.
- USB, PROFIBUS as option.
Quality Guaranteed
Nearly 30 years of experience, over 85,000 systems installed world-wide, more than 5 million scanning cycles per scanner and a 2-year warranty. Who can offer you more security?
BK MIKRO systems are produced in accordance with ISO Standard 9001 and meet all internationally required safety standards. They all dispose of the CE sign and UL approval.
BK MIKRO9 integrates almost all features of the known BK MIKRO systems. It is usable for tool monitoring and object or free space monitoring purposes.
The MIKRO9 system contents
- A control unit （BK MIKRO91, BK MIKRO92 oder BK MIKRO93; BK MIKRO9I/O as option）
- A scanner （TK 7A/RL, TK 8A, TK91A, TK94...）
- Connection cable
The BK MIKRO9 models are suitable for a great variety of monitoring tasks:
- Profibus
The monitoring is controlled by parameters （angle / tolerance, etc.） from the PROFIBUS master （PLC）. In this case an unlimited number of tools can be scanned and the full functionality of the system is available.
Typical application BK MIKRO91 - Parameterization with Desktop Software and Digital I/Os
The parameterization of the tool / object data is performed on a PC and transmitted to the control unit via USB then actuated digitally （by the PLC） during the application. When connected to the I/0 extension module up to 512 objects / tools can be taught and monitored via the selection inputs. Depending on the control unit used a full （premium） or limited （basic） functionality is provided.
Typical application BK MIKRO92/93 - Basic Function and Digital I/Os
For easy setup without a PC the most important functions （clockwise / counter-clockwise rotation of the wand, object or free-space monitoring, adjustment of scanning intensity） can be set on the I/O extension module.
Typical application BK MIKRO92/93 with I/O module
Further Features:
- Setting all parameters via PROFIBUS or configuration software.
- The number of the nominal values which have to be interrogated is unlimited （digital I/Os: 512 tools max.）. A single control system is therefore also sufficient if a processing centre is, for example, extended by a further tool magazine.
- The angles measured by the scanner are transmitted to the control over PROFIBUS for evaluation. If the actual value differs from the nominal value, the production process is stopped by the control.
- Diagnostic features easy accessible with the desktop software.
- Axial scanning of the tool tip possible.
- Different types of tools can be checked for damage and correct place in a magazine.
- Wands up to 610 mm length for more space between scanner and tool.
- Monitoring of rotating toos up to min. diameter of 0.3 mm.
- Scanning in clockwise or counter-clockwise direction （depends on scanner version）.
- Reverse travel monitoring.
- 8 steps for scanning intensity.
- Cable breakage detection.
- No impact on work process time.
- Air barrier adapter as option to use the tool monitoring system system in surroundings with aggressive coolants.
Subject to technical modifications and amendments.
Minimum Size, Maximum Performance
- Compact design for easy top hat rail mounting.
- ARM9 with high processing power and low current consumption.
- Mini-USB socket to connect any control unit to a PC for configuring a system.
- Easy to use software with monitoring capabilities.
- Small circular connector for connecting the scanner .
- Digital I/O or PROFIBUS to network to the machine control.
- Galvanically isolated inputs and outputs guarantee a high degree of operational safety and interference resistance.
- Hardware–based cable break detection.
BK MIKRO91/92 Premium
 | BKM91:
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Technical data
| Housing | Insulation material, protection class II, built-in type |
| Protection class | IP20 |
| Dimensions | 22.6 mm x 99 mm x 113.6 mm |
| Mounting | Profile rail 35 mm acc. DIN EN 50022 |
| Power supply voltage | 24 VDC ±20 % PELV, Imax = 0,4 A |
| Power consumption | Max. 10 VA |
| Control voltage | 24 VDC ±20 % PELV |
| Inputs | Galvanically isolated, input current approx. 5 mA, pulse duration 30 ms min. |
| Switch outputs | 2x 30 VDC, 2 A max. |
| Life cycle of relay | 105 switching cycles min. |
| Connections |
|
| Climate conditions | According class 3K3 acc. EN 50178 |
| Ambient temperature | 0 °C up to +50 °C |
BK MIKRO93 Basic
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Technical data
| Housing | Insulation material, protection class II, built-in type |
| Protection class | IP20 |
| Dimensions | 22.6 mm x 99 mm x 113.6 mm |
| Mounting | Profile rail 35 mm acc. DIN EN 50022 |
| Power supply voltage | 24 VDC ±20 % PELV, Imax = 0,4 A |
| Power consumption | Max. 10 VA |
| Control voltage | 24 VDC ±20 % PELV |
| Inputs | Galvanically isolated, input current approx. 5 mA, pulse duration 30 ms min. |
| Switch outputs | 2x 30 VDC, 2 A max. |
| Life cycle of relay | 105 switching cycles min. |
| Connections |
|
| Climate conditions | According class 3K3 acc. EN 50178 |
| Ambient temperature | 0 °C up to +50 °C |
BK MIKRO9I/O Extension Module
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|
Technical data
| Housing | Insulation material, protection class II, built-in type |
| Protection class | IP20 |
| Dimensions | 22.6 mm x 99 mm x 113.6 mm |
| Mounting | Profile rail 35 mm acc. DIN EN 50022 |
| Control voltage | 24 VDC ±20 % PELV |
| Inputs | Input current approx. 5 mA, pulse duration 30 ms min. |
| Switch outputs | 2 high side switches with maximum output current 0.5 A |
| Connections | Pluggable screw terminals for 10 inputs, 2 outputs （with voltage supply） |
| Climate conditions | According class 3K3 acc. EN 50178 |
| Ambient temperature | 0 °C up to +50 °C |
Subject to technical modifications and amendments.
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Control unit BK MIKRO
Control unit BK MIKRO
BK MIKRO
TK
TK
TK
TK
TK8A incl. wand holder, no wand, without cable
TK7A
BKM connection cable, straight connector, 8-pin 30 cm
BK MIKRO 4
| Description / Bezeichnung | Article-No. |
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BKM 4 Control unit 24 VDC
BK MIKRO 7
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BKM 7 Control unit 24 V DC
BK MIKRO 8
| Description / Bezeichnung | Article-No. |
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Hinweis: Das Steuergerät BK MIKRO 8 PB ist nicht mehr verfügbar. Bitte setzen Sie das Nachfolgeprodukt Steuergerät BK MIKRO9 ein.
BK MIKRO LIN
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BKM LIN Multi Control unit24 VDC
Further Accessories and Spare Parts / Weiteres Zubehör
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| BKM Scanning wands / Tastnadeln （Standard） ø = 1,2 mm, l= 165 mm （10 pieces / 10 Stück）  | 62 04 022 |
| BKM Scanning wands / Tastnadeln ø = 1,2 mm, l= 250 mm （10 pieces / 10 Stück）  | 62 04 216 |
| BKM HSS Scanning wands / Tastnadeln ø = 1,2 mm, l= 165 mm （1 Stück）  | 62 04 215 |
| BKM HSS Scanning wands / Tastnadeln ø = 1,2 mm, l= 250 mm （1 piece / Stück）  | 62 04 231 |
| BKM Wand holder / Nadelhalter （Standard） -> TK 4 / TK 5 Axis / Achse ø = 4 mm, incl. wand / inkl. Nadel ø = 1,2 mm  | 62 04 023 |
| BKM Wand holder / Nadelhalter （small chips / kurzbrechende Späne） -> TK 4 / TK 5 Axis / Achse ø = 4 mm, incl. wand / inkl. Nadel ø = 1,2 mm  | 62 04 214 |
| BKM Wand holder / Nadelhalter （Standard） -> TK 7 / TK 8 Axis / Achse ø = 3 mm, incl. wand / inkl. Nadel ø = 1,2 mm  | 62 04 026 |
| BKM Wand holder / Nadelhalter （small chips / kurzbrechende Späne） -> TK 7 / TK 8 Axis / Achse ø = 3 mm, incl. wand / inkl. Nadel ø = 1,2 mm  | 62 04 263 |
| BKM Mounting bracket / BKM Montagehalter, ø 32 mm （-> BKM 4 / 5 / LIN）  | 61 07 082 |
| BKM Mounting bracket / BKM Montagehalter, ø 20 mm （-> BKM 7 / 8 / LIN）  | 61 07 165 |
| BKM Scanning wand with plate （120x15）, ø 4 x 510 mm （1 piece） BKM Tastnadel mit Platte （120x15）, ø 4 x 510 mm （1 Stück）  | 62 04 279 |
| BKM Scanning wand with plate （80x15）, ø 3 x 380 mm （1 piece） BKM Tastnadel mit Platte （80x15）, ø 3 x 380 mm （1 Stück）  | 62 04 260 |
| BKM Scanning wand with plate （65x15）, ø 3 x 284 mm （1 piece） BKM Tastnadel mit Platte （65x15）, ø 3 x 284 mm （1 Stück）  | 62 04 262 |
| BKM Balance weight （2 x ø 20 mm, 1 x ø 16 mm） BKM Gegengewichtsset （2 x ø 20 mm, 1 x ø 16 mm）  | 62 04 282 |
| BKM Scanner accessories （adapter, scanner tip, wand holder, wand） BKM Tastkopf-Zubehör （Adapter, Tastkopfspitze, Nadelhalter, Nadel）  | 62 04 904 |
| BKM air barrier adapter / Sperrluftadapter Axis / Achse ø = 3 mm, wand / Nadel ø = 3 mm （-> TK8）  | 62 04 027 |
| BKM air barrier adapter / Sperrluftadapter Axis / Achse ø = 3 mm, wand / Nadel ø = 1,2 mm （-> TK7 / TK8）  | 62 04 028 |
| BKM air barrier adapter / Sperrluftadapter Axis / Achse ø = 4 mm, wand / Nadel ø = 1,2 mm or 4 mm （-> TK 4 / TK 5）  | 62 04 029 |
Subject to technical modifications and amendments. | Technische Änderungen vorbehalten.
BK MIKRO 8
Click on a thumbnail for viewing the image in detail （JavaScript required）.
 Bidirectional tool monitoring / broken tool detection |  Broken tool detection |  Broken tool detection in the magazine of a machine tool （mechanically protected wand） |
 Broken tool detection in the magazine of a machine tool | <a title="Broken tool detection in the magazine" data-cke-saved- =""> Broken tool detection in the magazine of a machine tool （tool tip） |
Functional Principle Tool Monitoring
Depending on the preset parameters in the control unit when a start signal is given from the machine control the wand rotates left or right until it reaches the tool. In this process it first approaches the monitoring range with maximum speed, then decelerates and scans the tool with the set intensity. Once the wand contacts the tool or goes past the point where the tool should be （broken tool） the wand returns to home position at maximum speed and outputs either and OK or KO signal.
By means of a preset angle the wand can be assigned a freely definable home position between two tools to be monitored. After the wand has reached this position the two toos can be scanned. The order of the scanning direction is also selectable.
廣州市朝德機電設(shè)備有限公司
：
：鄭杰克、向
： novosor : www.novosor.com
地址：廣州市越秀區(qū)朝天路66號3F
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