Speed monitor
DP2122
11
If a set rotational speed is not reached, this is signalled by the switching signal as closed.
4.4.4 Deactivated mode
NO (IO-Link parameter LoGc: no / high active)
The switching signal is always signalled as open.
NC (IO-Link parameter LoGc: nc / low active)
The switching signal is always signalled as closed.
4.4.5 Standard IO mode
The yellow LEDs indicate the switching status of the unit.
Switching function NO:
transistor output
LED yellow
Description
Closed
on
Rotational speed > SP1 and during start-
up delay
Open
off
Rotational speed < SP2
Switching function NC:
transistor output
LED yellow
Description
Closed
on
Rotational speed < SP2
Open
off
Rotational speed > SP1 and during start-
up delay
4.4.6 Switching delays
The switching delay enables filtering of input signals. The switching delay is activated or restarted by a
positive switching edge of the input signal. Only if the input signal is still active after the delay time has
elapsed, the output will be set to the active switching state. Pulses that are shorter than the switching
delay will be filtered.
Input signal
Switching delays
Output signal
NO contact / High active / no
Output signal
NC contact / Low active / nc
GB
