Solutions for machine tools

Machine tools

The productivity of machine tools is a crucial factor when assessing their competitiveness. That is why the machines are getting faster. However, this does have risks for the operating personnel. At the same time, extremely high standards of precision and flexibility are required. These factors should not be limited at all by the inclusion of suitable security concepts. Besides this, they must permit simple conversion and easy troubleshooting. In addition, monitoring solutions are needed that ensure a consistently high productivity over the entire service life of the machine.

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Input module, analog IL 5508

• According to IEC/EN 61 131-2
• CANopen interface according to DS301 version 3.0, DS401
• 2 analogue inputs with each 2 x 0 ... 10 V, 2 x 0 ... 20 mA
or 2 x Pt 100 (- 50 ... 300°C)
• Galvanic separation between inputs, bus and auxiliary supply
• LED indicators for supply voltage and Bus status
• 35 mm width

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Speed and frequency monitor UH 6937

• According to
- Performance Level (PL) e und category 4 to EN ISO 13849-1
- SIL-Claimed Level (SIL CL) 3 to IEC/EN 62061
- Safety Integrity Level (SIL 3) to IEC/EN 61508
- Safety Integrity Level (SIL) 3 to IEC/EN 61511
• Over-, underfrequency or window monitoring of single or
3-phase in AC systems
• Integrated user friendly frontside display
- Comfortable, menu guided configuration
- For set point and actual value of Hz
• Fast reaction time by measuring duration of cycle of input frequency
• Universal measuring inputs for AC-voltages of 8 ... 280 V for
single-phase monitoring as well as 16 ... 690 V for
single- and 3-phase monitoring
• Suitable for inverters
- Variant /0_ _ : 1 ... 700 Hz
- Variant /1_ _ : 1 ... 1200 Hz
• Adjustable hysteresis
• Adjustable reset delay function from 0 ... 100 s
• Adjustable start up time delay from 0 ... 100 s
• Adjustable alarm delay from 0.1 ... 100 s
• Manual or auto-reset
• galvanic separation between measuring input, auxiliary voltage and
output contacts
• 2-channel function
• Forcibly guided output contacts
• LED-indicators and 2 semiconductor monitoring output
• Width 45 mm
• With pluggable terminal blocks for easy exchange of devices
• Variant /_ _1:
- it is possible to set a variety of response parameters by means of a
4 bit selection facility from an overriding control unit;
- analog output (2V to 10V) corresponding to the current speed;
- the possibility of overriding the speed by a
supervisory function (muting);
- adjustable switchover time from 0 ... 100 s

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Residual current monitor, Type B RN 5883

• According to IEC/EN 62 020, VDE 0663
• For AC and DC systems Type B, according to IEC/TR 60755
• To detect earth faults in grounded voltage systems
• 4 setting ranges from 10 mA to 3 A
• Manual reset, with alarm and pre-warning
• With adjustable switching delay
• Energized or de-energized on trip
• LED indicator for operation, pre-alarm and alarm
• With test function
• LED-chain indicates fault current
• As option with analogue output
• Broken wire detection
• Width: 52.5 mm

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Stand-still monitor LH 5946

• According to
- Performance Level (PL) e and category 4 to EN ISO 13849-1
- SIL-Claimed Level (SIL CL) 3 to IEC/EN 62061
- Safety Integrity Level (SIL) 3 to IEC/EN 61508, IEC/EN 61511 and EN 61800-5-2
• Safe standstill detection on 3- and single-phase motors
• No external sensors necessary
• Independent of direction
• Broken wire detection
• Forcibly guided safety contacts:
3 NO contacts, 1 NC contact for AC 250 V
• 2 semiconductor monitoring outputs
• 1 monitoring output (NO contact)
• Adjustable voltage setting
• Adjustable standstill time delay
• LED indicators for standstill, event of line breakage and
operation voltage
• Suitable for operation with inverters
• Width 45 mm

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Softstarter with DC-brake BI 9028

• According to IEC/EN 60 947-4-2
• 2-phase motor control
• For motors up to 15 kW at 3 AC 400 V
• Separate settings for start and brake time, as well as starting
and braking torque
• Galvanic isolation of control input
with wide voltage range up to AC/DC 230 V
• No external motor or braking contactor necessary
• 3 auxiliary voltages up to 230 V
• monitors undervoltage and phase sequence
• 2 relay outputs for indication of status and fault
• LED-indication
• As option without auxiliary supply
• As option with voltfree contacts for start and stop
• As option with input to detect motor temperature
• BI 9028 up to 7.5 kW: 67.5 mm width
BI 9028 up to 15 kW: 90 mm width

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