Pilz PNOZ ms1p standstill / speed monitor - Manual (Page 11)

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
3-1
3.1 Intended use
3 Safety
3 3000 Safety Safety 3- 3.1 Intended use 3100 Intended use 3-
The expansion module monitors standstill, speed and direction of rota-
tion up to Category 3 of EN 954-1.
The expansion module may only be connected to a base unit from the
PNOZmulti modular safety system.
The PNOZmulti modular safety system is used for the safety-related in-
terruption of safety circuits and is designed for use on:
` Emergency stop equipment
` Safety circuits in accordance with VDE 0113 Part 1 and EN 60204-1
WARNING!
Users must take appropriate measures to detect or exclude
errors (e.g. slippage or broken shearpin) which cause the fre-
quency of the encoder signal to no longer be proportional to the
monitored speed.
Appropriate measures are:
` Use of the input device to be monitored also for drive control-
ling
` Mechanical solutions
` Monitoring for broken shearpin by means of the speed monitor
WARNING!
A single-channel open circuit/input device error is recognised
and leads to safe condition of outputs at the relevant axis.
For applications according to category 3, the "Overspeed" out-
put must be integrated into the safety function in every operat-
ing mode and evaluated so that a shutdown occurs if the output
switches to a safe condition ("Overspeed" output = "0").