MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES

Product catalog summary

Overview: The CMB-3 Monitoring System is an advanced brake condition monitoring solution for SB and SF brakes, offering enhanced sensor capacity and improved features over its predecessor, the CMB-2. It supports Profibus and Profinet systems and operates within a wide voltage range of 110-240 V AC.

Key Features:

Handles up to 2 SB brakes (SB28/SB23/SB16) or 2 SF brakes (SF10...SF40), and 1 dual caliper brake (SF50).
Equipped with an industrial display for data and error messages, operable in high ambient temperatures (-20°C to +70°C) and protected by IP65/IP66 standards.
Includes a keypad for parameter adjustments and supports cable lengths up to 20 meters.
Transfers all scaled measurement signals and error bits to the main control PLC via bus systems, eliminating the need for expensive analogue inputs.

Sensor Components:

Pad Wear Sensors: Detect minimum brake pad thickness and send signals to the CMB-3.
Temperature Sensors: Measure brake pad temperature, generating signals if temperatures are too high or uneven.
Stroke Sensors: Measure the thruster piston rod position, ensuring correct brake closure.
Force Sensors: Measure contact force to detect incorrect settings or broken springs.

Control Elements:

Display: Shows all measured signals and error messages, readable in various lighting conditions.
Keypad: Allows parameter adjustments, such as temperature unit changes and Profibus address settings.
Reset Function: Resets system status after resolving brake issues.
Data Interface: Facilitates communication between CMB-3 and main control PLC, supporting over 100 brakes on one bus master.

Data Interface Table: Provides detailed mapping of signals between CMB-3 and customer PLC, including temperature, stroke, and force measurements, as well as error and warning indicators.

Additional Information: The system is designed for easy troubleshooting with M12 plug cables and includes a sunshine protection cover for outdoor use.

Catalog excerpts

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-1

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES BRAKING UNLIMITED

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-2

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES NEW FEATURES • Profibus or Profinet system possible • Automatic power supply range switch 110-240 V AC • One CMB-3 box can handle up to: - 2 brakes SB28 / SB23 / SB16 - 2 brakes SF10...SF40 - 1 dual caliper brake SF50 • Cable for sensors have a plug M12 on each end for easy troubleshooting • Same type of box for SF and SB brake types After many years of successful operation in the market, the brake condition monitoring systems CMB-2 have been improved. The new system CMB-3 can handle double amount of sensors. FEATURES • Industrial display with 4 rows...

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-3

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES 1. Parts of CMB-3 system for SB brakes If the minimum brake pad thickness is reached, the sensors (A) send a signal to the CMB-3. A pair of Pt100 sensors (B) measures the temperature of the each brake pad. If the temperature is too high or if the temperature is unequal from left to right side the unit generates a signal that is displayed in the panel. This error signal is given also on the Profibus / Profinet connection. Stroke sensor The analogue sensor measures the position of the thruster piston rod. The reserve stroke is measured and checked that...

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-4

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES Brake type SB28.3 with BUEL thruster and CMB-3 monitoring system. Typical position of the CMB-3 unit. (Other options available)

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-5

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES Electrical diagram CMB-3 for SB brakes

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-6

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES Parts of CMB-3 system for SF brakes A pair of Pt100 sensors measures the temperature of the each brake pad. If the temperature is too high or if the temperature is unequal from left to right side the unit generates a signal that is displayed in the panel. This error signal is given also on the Profibus / Profinet connection. Temperature sensor Analogue sensors measure the stroke of each cylinder. If the stroke exceeds the maximum of 2.5 mm, a warning signal and an error message will be generated. The maximum measurement range is 3 mm. Analogue strain...

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-7

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES Electrical diagram CMB-3 for SF brakes

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-8

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES All measured analogue signals, digital signals and error messages are shown on the display in English language. Other languages are available on request. The display is readable under direct sunshine and has a LED backlight for use in a dark environment, such as steel mills. With the internal keypad, the user can adjust parameters such as changing the temperature display from Celsius (°C) to Fahrenheit (°F) or setting of the Profibus address. The LED pushbutton on top of the electronic box indicates a wrong brake adjustment by a flashing red light....

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MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES-9

MONITORING SYSTEM CMB-3 FOR SB AND SF BRAKES 3.5 Data interface tableTable Data Interface 3.5 Signals from CMB3 brake to customer PLC over Profibus or Profinet Offset SB-brake on Left side box SF-brake top side Offset (Byte): SB-brake on right side box SF-brake bottom side Signals from customer PLC to CMB3 over Profibus or Profinet Metric system Data type Brake pad temperature (left side) Brake pad temperature (left side) Brake pad temperature (right side) Brake pad temperature (right side) Stroke (SF only: right side cylinder) Stroke (SF only: right side cylinder) Contact force Contact force...

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