Data Sheet DB EN EMD-FL-3V-400 - IEC Supply, LLC

EMD-FL-3V-400
3-Phase Voltage Monitoring Relay
Data Sheet
08/2004
Functions
Structure
Voltage monitoring in 3-phase networks with settable
threshold values, settable response delay, monitoring
of phase sequence and phase failure, as well as
asymmetry monitoring with settable asymmetry and
the following functions that can be set with the rotary
switch:
– UNDER undervoltage monitoring
– UNDER+SEQ undervoltage and phase sequence
monitoring
– WIN monitoring of the range between the
thresholds MIN and MAX
– WIN+SEQ monitoring of the range between the
thresholds MIN and MAX and phase sequence
monitoring
Figure 1
Structure
1 LED: Asymmetry ASYM
2 LED: Threshold value MAX
3 LED: Threshold value MIN
4 LED: Phase sequence SEQ
5 LED: Output relay REL
6 Potentiometer ASYM – Asymmetry
7 Potentiometer MAX
8 Potentiometer MIN
9 Potentiometer DELAY – response delay
10 Rotary switch function
11 Snap-on foot
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EMD-FL-3V-400
Technical Data
Power Supply
Supply voltage
Connection terminal blocks (electrically isolated)
Tolerance
Nominal frequency
24 V … 240 V AC/DC
A1 - A2
-15% ... +10% AC / -20% ... +25% DC
48 Hz ... 400 Hz
on request
16.6 Hz
Nominal operational power 4.5 VA (1.5 W)
Measuring Input
Time setting range for response delay
Measured value
Measuring input
Connection terminal blocks
Overload capacity
Input resistance
Switching threshold
– max. (relative to U N )
– min. (relative to U N )
Asymmetry
0.1 s … 10 s
AC sinus (48 Hz … 63 Hz)
3(N)~400 V / 230 V
(N) - L1 - L2 - L3
3(N)~600 V / 346 V
1 MΩ
-20% … +30%
-30% … +20%
5% ... 25% / off
Accuracy
Basic accuracy of scale end value ±5%
Setting accuracy of scale end value ≤ 5%
Repeat accuracy ≤ 2%
Temperature influence
≤ 0.1%/K
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EMD-FL-3V-400
Contact Side (Output)
Contact type
Rated voltage in accordance with IEC 60664-1
Switching capacity
– device mounted in row (spacing < 5 mm)
– device not mounted in row (spacing > 5 mm)
Fusing
Mechanical service life
Electrical service life (ohmic load 1000 VA)
Switching rate in accordance with IEC 60947-5-1
– max. (with ohmic load 100 VA)
– max. (with ohmic load 1000 VA)
Floating PDT (2x)
250 V AC
750 VA (3 A/250 V AC)
1250 VA (5 A/250 V AC)
5 A fast
20 x 10 6 cycles
2 x 10 5 cycles
60/min.
6/min.
Climatic Data
Ambient temperature
– operation (IEC 60068-1/UL 508)
-25°C … +55°C / -25°C … +40°C
(-13°F ... 131°F / -13°F ... 104°F)
– storage
-25°C … +70°C (-13°F ... 158°F)
Relative humidity 15% … 85%
Climatic class in accordance with IEC 60721-3-3 3K3
Contamination class in accordance with IEC 60664-1 3
General Data
Duty cycle 100%
Recovery time
500 ms
Surge voltage category in accordance with
III
IEC 60664-1
Rated surge voltage
4 kV
Indicators
Position of output relay: yellow LED
Error in corresponding threshold: red LED
Response delay in corresponding threshold: red LED
ON / OFF
ON / OFF
Flashes
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EMD-FL-3V-400
Housing
Material
Polyamide PA 6.6, self-extinguishing
Degree of protection
IP40
Mounting On 35 mm DIN rails in accordance with EN 60715-35
Installation position
As desired
Dimensions (W x H x D)
22.5 mm x 90 mm x 113 mm
(0.886 in. x 3.543 in. x 4.449 in.)
Weight
approx. 160 g
Connection Terminal Blocks
Touch-proof
Degree of protection
Torque, max.
Conductor cross section
– with/without ferrule
– without ferrule
– with/without ferrule
– flexible without ferrule
Yes
IP20
1 Nm
1 x 0.5 … 2.5 mm 2 (AWG 20 ... 14)
1 x 4 mm 2 (AWG 12)
2 x 0.5 mm … 1.5 mm 2 (AWG 20 ... 16)
2 x 2.5 mm 2 (AWG 14)
Ordering Data
Description Order Designation Order No.
3-phase voltage monitoring relay EMD-FL-3V-400 28 66 06 4
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EMD-FL-3V-400
Installation
Connection Examples
Danger of fatal injury!
Never carry out work on live parts!
The monitoring module can be snapped onto all
35 mm DIN rails in accordance with EN 60715-35.
An integrated wide range power supply unit allows
voltage in the range of 24 V AC/DC to 240 V AC/DC
to be connected.
Circuit Diagram
Figure 3
Measuring range 3(N)~400 V / 230 V
Figure 2
Circuit diagram
Figure 4
Measuring range 3(N)~400 V / 230 V
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EMD-FL-3V-400
Figure 5
Measuring range 3(N)~400 V / 230 V
with connected neutral conductor
Functional Description
LEDs MIN and MAX flash alternately for all functions
if the minimum value selected for the measured voltage
is greater than the maximum value.
If there is a mains fault when the monitoring module is
activated, the output relay R remains dropped out and
the LED for the relevant threshold lights up.
The desired function is set with the rotary switch
(Figure 6):
U = Undervoltage monitoring UNDER
US = UNDER + SEQ / undervoltage monitoring with
phase sequence monitoring and phase failure
monitoring
W = Window function WIN / monitoring of the range
between the thresholds MIN and MAX
WS = WIN + SEQ / monitoring of the range between
the thresholds MIN and MAX with phase
sequence monitoring and phase failure
monitoring
Figure 6
Rotary switch
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EMD-FL-3V-400
Undervoltage Monitoring – UNDER,
UNDER + SEQ
Figure 7 Undervoltage monitoring –
UNDER, UNDER + SEQ
When the measured voltage (average of the phaseto-phase
voltages) falls below the value set on the
MIN regulator, the response delay (DELAY) starts to
elapse (red LED MIN flashes). When the response
delay has elapsed (red LED MIN lights up), output
relay R drops out (yellow LED REL does not light up).
If the measured voltage falls below the value set on
the MAX regulator, the output relay R picks up again
(yellow LED REL lights up).
Window Function – WIN, WIN + SEQ
The output relay R picks up again (yellow LED REL
lights up) when the measured voltage drops below the
maximum value again (red LED MAX does not light
up). If the measured voltage falls below the value set
on the MIN regulator, the response delay (DELAY)
starts to elapse (red LED MIN flashes). When the response
delay has elapsed (red LED MIN lights up),
output relay R drops out (yellow LED REL does not
light up).
Monitoring Phase Sequence – SEQ
Phase sequence monitoring can be activated for all
functions. If the phase direction of rotation is altered
(red LED SEQ lights up), output relay R drops out
without delay (yellow LED REL does not light up).
Monitoring Phase Failure – SEQ
If one of the phase voltages fails, the response delay
set (DELAY) begins to elapse (red LED SEQ flashes).
When the time delay has elapsed (red LED SEQ lights
up), output relay R drops out (yellow LED REL does
not light up). Reverse voltages (e.g. motors running
on two phases) are not detected by this function. This
is done by monitoring asymmetry with a suitable
choice of thresholds.
Figure 8
Window function – WIN, WIN + SEQ
The output relay R picks up (yellow LED REL lights
up) if the measured voltage (average of the phase-tophase
voltages) exceeds the value set on the MIN
regulator. When the measured voltage exceeds the
value set on the MAX regulator, the response delay
(DELAY) starts to elapse (red LED MAX flashes).
When the response delay has elapsed (red LED MAX
lights up), output relay R drops out (yellow LED REL
does not light up).
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EMD-FL-3V-400
Monitoring Asymmetry
When the asymmetry of the phase-to-phase voltages
exceeds the value set on the ASYM regulator, the
response delay (DELAY) starts to elapse (red LED
ASYM flashes). When the response delay has
elapsed (red LED ASYM lights up), output relay R
drops out (yellow LED REL does not light up).
If the neutral conductor is connected, the phase voltages
(phase-to-neutral voltage) are also monitored for
asymmetry with the neutral conductor. In this particular
application, both values are taken for evaluation for
asymmetry. As soon as one of the two values exceeds
the value set on the ASYM regulator, the response
delay starts to elapse (red LED ASYM flashes). When
the response delay has elapsed (red LED ASYM
lights up), output relay R drops out (yellow LED REL
does not light up).
Monitoring Neutral Conductor Break via
Asymmetry Evaluation
A break in the neutral conductor between the system
and the supply network is recognized as asymmetry
of the phase voltages with the neutral conductor and
the response delay (DELAY) starts to elapse (red LED
ASYM flashes). When the response delay has
elapsed (red LED ASYM lights up), output relay R
drops out (yellow LED REL does not light up).
A break in the neutral conductor between the monitoring
module and the monitored system cannot be
detected.
Make sure you always use the latest documentation.
It can be downloaded at www.phoenixcon.com .
Phoenix Contact Inc.
P.O. Box 4100
Harrisburg, PA 17111-0100
USA
717-944-1300
717-944-1625
info@phoenixcon.com
www.phoenixcon.com
© Phoenix Contact 08/2004 Technical modifications reserved
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