Release date 2016-09-13 11:47 Date of issue 2016-09-13 132964_eng.xml
Technical data KFD2-SR2-Ex2.W.SM
4
Refer to "General Notes Relating to Pepperl+Fuchs Product Information".
Pepperl+Fuchs Group USA: +1 330 486 0002 Singapore: +65 6779 9091Germany: +49 621 776 2222
www.pepperl-fuchs.com pa-info@us.pepperl-fuchs.com pa-info@de.pepperl-fuchs.com pa-info@sg.pepperl-fuchs.com
The function of standstill monitor with start-up override (S3 = I) or standstill monitor with rotation direction monitoring (S3 = II) can
be selected by means of DIP switches.
Standstill monitor with start-up override (S3 = I)
If the frequency falls below the trip value set with the DIP switches S1 and S2, the standstill monitor with start-up override switches
the output I to passive and the output II to active. Input I is used to monitor the frequency of rising current edges. Signal
transmitters can be sensors in accordance with EN 60947-5-6 (NAMUR) or contacts. Input I is monitored for lead breakage/short-
circuiting. A start-up override can be initiated via input II. The duration of the start-up override can be selected between 5 and
20 seconds by means of a bridge (starting trigger) or an external trigger signal. During the start-up override time the outputs
assume the "no standstill" state. In this case there is no lead breakage/short-circuit monitoring at input II.
Operating principle
S3: I II
Function: Standstill monitor with
start-up override
Standstill monitor with
rotation direction monitoring
Input I: Pulse input 1:
NAMUR
contacts (bounce-free)
Pulse input 1:
NAMUR
contacts (bounce-free)
Input II: Start-up override:
contact terminal 4 + 6: 20 seconds
contact terminal 5 + 6: 5 seconds
Pulse input 2:
NAMUR
contacts (bounce-free)
Output I: MIN/passive MIN/passive
Output II: MIN/active Direction of rotation/error
Trip value Hysteresis Switch S2 Switch S1
0.1 Hz 0.02 Hz I I
0.5 Hz 0.1 Hz I II
2 Hz 0.4 Hz II I
10 Hz 2 Hz II II
Output I
Switching point
active
passive
f
Output II
Switching point
active
passive
f
Mode of operation MIN/passive
Mode of operation MIN/active
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