Safe standstill monitoring and speed monitoring, sensorless option

Standstill and Speed Monitoring

Standstill and speed monitoring devices detect and signal the standstill and speed of machines and systems in automatic as well as set up operation. DOLD offers efficient and economical solutions for safe sensorless drive monitoring as well as speed monitoring using proximity sensors.

 

Sensorless safety standstill monitoring recognizes motor standstills independent of the direction of rotation, without having to use additional external sensors like encoders or proximity sensors. Standstill and speed are recognised directly through evaluating the voltage on the motor terminals. Safe speed monitoring using drive proximity sensors is used in machines and apparatus which can pose a threat to people whilst running through mobile machinery or movable parts. Standstill and speed monitoring by DOLD offers the highest safety up to Cat. 4 / PL e or SIL 3.

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Speed monitor UH 6932

• According to
- Performance Level (PL) e und category 4 to EN ISO 13849-1: 2008
- 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
• Overspeed, underspeed or window monitoring
• 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
• For PNP- or NPN-sensors
• 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
• 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 (2 V to 10 V) 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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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

Download

Speed monitor UH 5947

• According to
- Performance Level (PL) e und category 4 to EN ISO 13849-1: 2008
- SIL-Claimed Level (SIL CL) 3 to IEC/EN 62061
- Safety Integrity Level (SIL 3) to IEC/EN 61508
• According to EN 60204
• Device setting on menu-driven display or via RJ45
(FCC Western-Modular 8P8C) with connection cable (copy function)
• Change tracking
• Adjustable operation mode
- Automatic mode: Monitoring of automatic rotational speed window
and standstill speed.
- Setup mode: Monitoring of setup rotational speed window.
Standstill is permanently enabled.
• Single or 2-channel safety gate monitoring
• Integrated user friendly display for parameters and operation status
- for set point and actual value of U/min or m/min
- set point display also as frequency value
- with numerous diagnostic features
• Adjustable start up delay (0 ... 999 s)
• Adjustable time delay for standstill detection (13/14, 23/24) (0 ... 999 s)
• Adjustable monitoring time for feedback circuit RF1 (0,5 ... 999 s)
• Monitoring of an release magnet
• Monitoring of feedback circuits
• Activation of the output path 43/44, 53/54 with on/off pushbutton with
short circuit detection or automatic making function
• Adjustable PNP- or NPN-sensors
• Connection of different encodern possible (sin/cos, TTL, HTL)
• 2-channel function
• Forcibly guided contacts
• LED-indicators and 2 semiconductor monitoring output
• With pluggable terminal blocks for easy exchange
of devices
- with screw terminals
- or with cage clamp terminals
• Width 45 mm

Download

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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Speed monitoring module UG 6917/332

• Speed monitoring module for 1 to 2 axes
• Terminal blocks for connecting 2 proximity sensors
• Available with 0,1 or 2RJ45 sockets for connecting encoders (TTl, HTL, sin/cos)
• Speed pre-selection, with or without direction monitoring. Up to 4 speed thresholds can be   
  configured.
• Speed window monitoring
• Standstill monitoring
• For rotational or linear movements
• For simple expansion of SAFEMASTER PRO via DIN rai lbus (IN-RAIL-BUS)
• For safety applications up to PLe / cat. 4 or SIL 3
• Status LEDs for comprehensive diagnostics
• Installation width: 22,5 mm

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