Speed, Stand-Still, Monitors, DoldPCB,Safety,Relays,DoldPCB,Safety,Relays,DoldPCB,Safety,Relays,DoldPCB,Safety,Relays,Dold


Speed And Stand-Still Monitors

Stand-still/speed relays monitor the rotation of drives to generate a control signal at zero speed or when a set speed is exceeded.

Advantages

  • Prewired rail-mounted modules
  • Safety category 3 acc. to EN 954-1
  • Positively driven output contacts
  • Connection monitoring of the proximity switches

Technology

These modules have measuring circuits in redundant configuration with 2-channel control by proximity initiators, either as pnp or npn input. The thresholds are either fixed or can be adjusted up to 26000 IPM. Zero-speed monitors can also work without sensors by measuring the remanence voltage of the coasting motor and evaluating it at zero speed.

Applications

  • Release safety gate interlocks when the stationary condition of a dangerous movement is detected
  • Work with opened safeguard devices and reduced speed during the set-up mode of the machine
Speed or stand-still monitoring SAFEMASTER S
Function
Cat. / PL
acc. to
EN 13849-1 *
SIL CL
acc. to
EN 62061 *
1-channel/
2-channel
Forcibly guided
output contacts,
max.
Indicator
contacts
Nominal voltage
Thermal current
Ith max. [A]
Width
[mm]
Type
AC/DC
AC
Speed or stand-still monitor,
with sensor
3 / e
3
1; 2
2 NO, 1NC
+
+
4
45
Speed or stand-still monitor
4 / e
3
2
4 NO
2 SO
+
+
5
45


NO = normally open contact, NC = normally closed contact, SO = semiconductor outputs
* Please check state of approval of idividual devices in the latest data sheet.

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