9
UK
• Current paths close when the measured value is lower than Foh (in this case
9�5
Hz, falling frequency)�
3.5 Initialisation
Directly after power on, the device carries out an initialisation comprising a
complete self-test� After approx� 3 s the device is ready for operation�
3.6 Fault output (Y7)
The transistor output "Fault" (Y7) opens when an internal or external error occurs�
The error message is reset by interrupting the voltage supply�
3.7 Overspeed output (Y8)
The overspeed output (Y8) is "HIGH" when the current paths are closed and
"LOW" when the current paths are opened�
3.8 Feedback circuit for external device monitoring (Y1-Y2)
If overspeed is detected, the current paths open and the external relays are de-
energised�
If the feedback circuit does not close within 1 s, an error message is provided�
LED [FAULT] flashes 3 times�
Also see (→ 6.1 LEDs)�
If the feedback function is not required, the terminals Y1-Y2 must be
permanently bridged�
Feedback contacts (NC contacts of the
external relays in series)
Without feedback function with bridge
