5
UK
3.3 Damping
The yellow LED indicates the damping status of the sensor irrespective of either
the switching function or the switching status of the transistor output�
Sensor
LED yellow
undamped
off
damped
on
3.4 Function diagram
SP + Hy
SP
1
2
3
4
[Imp/min]
[s]
1: Voltage supply
2: Start-up delay
3: Switching function normally open
4: Switching function normally closed
SP = switch point
Hy = hysteresis
= transistor output switched (conducting)
The start-up delay suppresses an error signal as long as the machine is in
the process of starting and has not yet reached its minimum speed� After
application of the operating voltage the start-up delay is active only once�
If the plant is started and stopped frequently, linking the drive and speed
monitor power supplies ensures that the start-up delay is effective each
time the machine is switched on�