Function description
Operating Manual PNOZ ms4p
22109-EN-03
12
4
Function description
4.1
Integrated protection mechanisms
The relay conforms to the following safety criteria:
}
The circuit is redundant with built-in self-monitoring.
}
The safety function remains effective in the case of a component failure.
4.2
Operation
The speed monitor can monitor an axis for standstill, speed and direction of rotation. The
speed monitor signals the status of the monitored values to the base unit. Depending on
the implemented safety circuit, the values may be transferred from the base unit to a relay
output on the safety system, for example. Incremental encoders may be used to record the
values.
The configuration of the speed monitor is described in detail in the PNOZmulti Configur-
ator's online help.
4.3
Block diagram
Interface
to pr
evious
module
Interface
to next
module
X12
X1
4.4
Incremental encoders
4.4.1
Requirements of the incremental encoders
}
Only incremental encoders with a differential output of the following type are permitted
– Sin/Cos
– TTL (RS 422)
– HTL (24 V)
}
Please note the values stated in the technical details
