Solutions for the steel and metal industry

Steel and metal industry

The machinery and equipment used in the steel and metal industry poses a high hazard potential. This also explains why the safety requirements in this industry have risen rapidly. This makes the early involvement of reliable security concepts at the first stages of plant design even more important. However, consistent implementation of safety issues also makes economic sense. This way, later downtimes due to accidents can also be prevented.

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Radio controlled safety module UH 6900

• 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 and IEC/EN 61511
• Machine directive 2006/42/EG
• DIN EN 574: Safety of machinery - Two-hand control devices -
• DIN EN 300 220: Electromagnetic compatibility and Radio spectrum Matters
(ERM) - Short Range Devices (SRD) - Radio equipment to be used in
the 25 MHz to 1000 MHz frequency range with power levels ranging up
to 500 mW
• Depending on the operating mode, to connect:
- E-stop push-button (2-channel), safety gate, LC (non-contact safety
system, for example light curtain) of the type 4 in accordance with
EN 61 496 or the two-hand type IIIA in accordance with DIN EN 574.
- 1 start button
- Changeover switch (2-channel) to indicate radio use in the
Safety operation with optional radio control operating mode
• For two-way communication via radio:
- Safety shut-down commands
- Signals from 8 non-safety-relevant DC 24 V inputs at 8 non-safetyrelevant
DC 24 V semiconductor outputs
• Broken wire and short circuit monitoring function with error indication
• Semiconductor output to indicate poor or no radio control
• 2 semiconductor outputs for status indication
• LEDs to indicate
- status of module
- status of all inputs and outputs
- the radio transmission and its quality
• Width: 45 mm

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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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Insulation monitor IL 5881

• According to IEC/EN 61 557-8
• For DC voltage systems up to 12 ... 280 V
• Wide voltage range of measuring input UN DC 12 ... 280 V (on request DC 24 ... 500 V with separate auxiliary supply, Measuring range 20 ... 500 kΩ) • Adjustable tripping value RAL of
5 ... 200 kΩ
• Selective ground fault indication for L+ and L- allows fast fault finding
• Without auxiliary supply
• De-energized on trip
• 2 changeover contacts
• Automatic or manual reset, programmable
• With test and reset buttons
• Connection for external test and reset button possible
• galvanic separated AC or DC auxiliary supply available as option
• adjustable time delay as option
• 2 models available:
IL 5881: 61 mm deep with terminals near to the bottom to be mounted in consumer units or industrial distribution systems according to DIN 43 880
SL 5881: 98 mm deep with terminals near to the top to be mounted in cabinets with mounting plate and cable ducts
• 35 mm width

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Insulation monitor SL 5881

• According to IEC/EN 61 557-8
• For DC voltage systems up to 12 ... 280 V
• Wide voltage range of measuring input UN DC 12 ... 280 V (on request DC 24 ... 500 V with separate auxiliary supply, Measuring range 20 ... 500 kΩ)
• Adjustable tripping value RAL of 5 ... 200 kΩ
• Selective ground fault indication for L+ and L- allows fast fault finding
• Without auxiliary supply
• De-energized on trip
• 2 changeover contacts
• Automatic or manual reset, programmable
• With test and reset buttons
• Connection for external test and reset button possible
• galvanic separated AC or DC auxiliary supply available as option
• adjustable time delay as option
• 2 models available:
IL 5881: 61 mm deep with terminals near to the bottom to be mounted in consumer units or industrial distribution systems according to DIN 43 880
SL 5881: 98 mm deep with terminals near to the top to be mounted in cabinets with mounting plate and cable ducts
• 35 mm width

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