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DOLD Speed and stand-still monitoring modules SAFEMASTER S

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Speed and stand-still monitoring mudules SAFEMASTER S
In accordance with the new machinery directive, the operating condition of a drive must be safely monitored and maintained during its shut-down. Typical applications are the release of locking mechanisms after the standstill of dangerous movements has been detected as well as work with open safety devices and reduced speed during calibration of the machine. The new speed monitors of the SAFEMASTER S series detect and signal the standstill and over-speed of machines and systems in automatic as well as set up operation. Its safely integrated safety door monitoring additionally provides a higher productivity and a higher degree of safety for the operating personnel.
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Type Function Cat. / PL acc. to EN 13849-1 * SIL CL acc. to EN 62061 * 1- / 2- channel Forcibly guided output contacts max. Indicator contacts Nominal voltage Thermal current  Ith [A] max. Width  [mm]
DC AC/DC AC
BH 5932 Speed or stand- still monitor 3 / e 3 1; 2 2 NO, 2 NC

+ + 4 45
UH 6932 Speed monitor 4 / e 3 2 2 NO 2 SO +

8 45
UH 5947 Speed monitor 4 / e 3 1; 2 4 NO 2 SO +
+ 5 45
NO = normally open contact; NC = normally closed contact
* Please check state of approval of idividual devices in the latest data sheet.
2) Safety data on request

DOLD Stand-still monitoring mudules SAFEMASTER S
Speed and stand-still monitoring mudules SAFEMASTER S
order
Type Function Cat. / PL acc. to EN 13849-1 * SIL CL acc. to EN 62061 * 1- / 2- channel Forcibly guided output contacts max. Indicator contacts Nominal voltage DC Nominal voltage  AC Thermal current  Ith [A] max. Width  [mm]
LH 5946 Stand-still monitor, measurement, without sensor 4 / e 3 2 2 NO, 2 NC

+ 4 45
NO = normally open contact; NC = normally closed contact, SO = semiconductor outputs, C/O = change-over contact
* Please check state of approval of idividual devices in the latest data sheet.
Technical Information and Features

Standstill and speed monitoring with Dold Safemaster S.

SAFEMASTER S - Reliable speed and standstill monitoring modules.
The speed and standstill monitors of the SAFEMASTER S series detect and signal the standstill and the speed of machines and plants in automatic as well as in setup mode. DOLD offers efficient and economical solutions for safe sensorless drive monitoring as well as speed monitoring via initiators. The speed and frequency monitor UH 6937 of the SAFEMASTER S series monitors frequency-controlled drives safely and without sensors up to 690 V. Due to the sensorless monitoring, the installation of additional proximity switches or initiators can be omitted. The frequency monitor thus creates new possibilities for construction, planning and retrofitting, even for larger machines and plants, e.g. in woodworking or machine tools. In the event of overfrequency, underfrequency or violation of the set window range, the frequency monitor switches off safely and shows its strengths in comparison to frequency inverters with integrated safety functions when simplicity, flexibility and safety are equally important. The safety functions STO (safe torque off), SOS (safe operating stop), SLS (safely limited speed), SSM (safe speed monitoring) and SSR (safe speed range) can be implemented with the appropriate circuitry. SAFEMASTER S offers maximum safety up to Cat. 4 / PL e or SIL 3.
Standstill and speed monitoring with Dold Safemaster S.
Your advantages of SAFEMASTER S at a glance:
- Up to cat. 4 / PL e or SIL 3
- Easy and fast adjustment via rotary switch or display, without PC
- Extensive diagnostic functions
- Suitable for standard motor feedback systems and proximity switches (depending on type)
- Convenient, menu-guided parameterisation via front display (depending on type)
- Sensorless (depending on type) and easy to retrofit
- Over-, underfrequency or window monitoring
- Easy to integrate into existing drive solutions.