EMD-FL-3V-230
102873_en_02 PHOENIX CONTACT 7
U
LED U
LED MAX
LED MIN
LED REL, R
MAX
MIN
START DELAY < DELAY
Undervoltage Monitoring (UNDER and UNDER + SEQ)
If the measured voltage (average value of the linked voltages)
falls below the value set at the "MIN" controller, the set
response delay (DELAY) starts (red "MIN" LED flashes). After
the delay time has elapsed (red "MIN" LED is ON), output
relay "R" drops out (yellow "REL" LED is OFF).
If the measured voltage exceeds the value set at the "MAX"
controller, output relay "R" picks up again (yellow "REL" LED
is ON).
U
LED U
LED MAX
LED MIN
LED REL, R
MAX
MIN
DELAY
< DELAY
DELAY
Window Function (WIN and WIN + SEQ)
Output relay "R" picks up (yellow "REL" LED is ON) if the
measured voltage (average value of the linked voltages)
exceeds the value set at the "MIN" controller. If the measured
voltage exceeds the value set at the "MAX" controller, the set
response delay (DELAY) starts (red "MAX" LED flashes).
After the delay time has elapsed (red "MAX" LED is ON),
output relay "R" drops out (yellow "REL" LED is OFF).
Output relay "R" picks up again (yellow "REL" LED is ON) if
the measured voltage falls below the maximum value again
(red "MAX" LED is OFF). If the measured voltage falls below
the value set at the "MIN" controller, the set response delay
(DELAY) starts (red "MIN" LED flashes).
After the delay time has elapsed (red "MIN" LED is ON),
output relay "R" drops out (yellow "REL" LED is OFF).
Phase Sequence Monitoring (SEQ)
Phase sequence monitoring can be enabled for all functions.
In the event that the phase direction has been modified (red
"SEQ" LED is ON), output relay "R" drops out without delay
(yellow "REL" LED is OFF).
Phase Failure Monitoring (SEQ)
In the event that one of the phase voltages fails, the set
response delay (DELAY) starts (red "SEQ" LED flashes).
After the time delay has elapsed (red "SEQ" LED is ON),
output relay "R" drops out (yellow "REL" LED is OFF).
Reverse voltages (e.g., motors that continue running on two
phases) are not detected using this function. This is done by
monitoring asymmetry using a suitable selection of
thresholds.
