According to the technical specifications below the unit can be operated in a wide
operating temperature range. Because of the additional internal heating the oper-
ating elements and the housing walls can hive high perceptible temperatures when
touched in hot environments.
In case of malfunction of the unit or uncertainties please contact the manufacturer.
Tampering with the unit can seriously affect the safety of people and the plant.
This is not permitted and leads to an exclusion of liability and warranty.
2. Function and features
The monitor FS-1 / FS-1N is a programmable pulse evaluation system for slip/syn-
chronous monitoring. It monitors the rotational speed ratio between a drive (mas-
ter) and a power take-off (slave).
To do this the monitor picks up pulses of external pulse pick-ups at 2 separate in-
put channels and calculates the corresponding input frequency from the pulse in-
terval. The assignment of the pulses to the input channels is predetermined:
IN 1 = power take-off (slave)
IN 2 = drive (master)
MONITOR
FS-1 / FS-1N
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22
Antrieb (Master)
IN 2
Abtrieb (Slave)
IN 1
Impulsgeber
Schaltausgang 1
Meldung
Drehzahlunter-/überschreitung
oder Gutbereich (IN 2)
MONITOR
FS-1
IN1
OUT 1
OUT 2
IN 2
Schaltausgang 2
Meldung
Schlupf oder Gleichlauf
(IN 1
≤
IN 2)
Impulsgeber
Example 1
Slip/synchronous monitoring
of a conveyor system
pulse pick-up
pulse pick-up
power take-off (slave)
IN1
drive (master)
IN2
switching output 1
switching output 2
Message
Slip or synchronous movement
IN1
≤
IN2
Message
Rotational speed not reached/ex-
ceeded or acceptable range (IN2)