Monitoring Relays
3-Phase, 3-Phase+N, Multi-function
Types DPC01, PPC01
DPC01
PPC01
Product Description
• 3-phase over and under voltage,
phase sequence, phase loss and asymmetry
monitoring relay
• Detect when all 3 phases are present and have the
correct sequence
• Detect if all the 3-phase-phase or phase-neutral
voltages are within the set limits
• Detect if asymmetry is below set value
• Separately adjustable setpoints
• Separately adjustable delay functions (0.1 to 30 s)
• Output: 2 x 8 A relay SPDT NE or ND (selectable)
• For mounting on DIN-rail in accordance with
DIN/EN 50 022 (DPC01) or plug-in module (PPC01)
• 45 mm Euronorm housing (DPC01)
or 36 mm plug-in module (PPC01)
• LED indication for relay, alarm and power supply ON
Ordering Key
DPC 01 D M48
adjustable set points) with
built-in time delay function.
Supply ranges from 208 to
480 VAC covered by two
multivoltage relays.
Housing
Function
Type
Item number
Output
Power supply
Mounting
Output
Supply: 208 to 240 VAC
Supply: 380 to 480 VAC
DIN-rail
Plug-in
2 x SPDT
2 x SPDT
DPC 01 D M23
PPC 01 D M23
DPC 01 D M48
PPC 01 D M48
3-phase or 3-phase+neutral
line voltage monitoring relay
for phase sequence, phase
loss, asymmetry, over and
under voltage (separately
Type Selection
Input Specifications
Output Specifications
Input
L1, L2, L3, N
Output
Rated insulation voltage
Contact ratings (AgSnO2)
Resistive loads
AC 1
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
Measuring ranges
208 to 240 VAC
380 to 480 VAC (DPC01DM48)
380 to 415 VAC (PPC01DM48)
Ranges
Upper level
Lower level
Asymmetry
Tolerance
DPC01: Terminals L1, L2, L3, N
PPC01: Terminals 5, 6, 7, 11
Measure on own supply
177 to 275 VAC
323 to 550 VAC
323 to 475 VAC
+2 to +22%
of the nominal voltage
-22 to -2%
of the nominal voltage
2 to 22%
of the nominal voltage
2 to 22%
of the nominal voltage
Specifications are subject to change without notice (06.11.00)
2 x SPDT relays
250 VAC
µ
8 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥ 30 x 106 operations
≥ 105 operations
(at 8 A, 250 V, cos ϕ = 1)
≤ 7200 operations/h
Operating frequency
Dielectric strength
Dielectric voltage
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
1
DPC01, PPC01
Supply Specifications
General Specifications (cont.)
Power supply
Rated operational voltage
through terminals:
L1, L2, L3, N
(DPC01)
5, 6, 7, 11
(PPC01)
M23:
Indication for
Power supply ON
Alarm ON
M48:
Rated operational power
M48
M23
Overvoltage cat. III
(IEC 60664, IEC 60038)
208 to 240 VAC ± 15%
45 to 65 Hz
380 to 480 VAC ± 15%
45 to 65 Hz
13 VA @ 400 VAC, 50 Hz
13 VA @ 230 VAC, 50 Hz
Supplied by L2 and L3
General Specifications
Power ON delay
Reaction time
Incorrect phase sequence or
total phase loss
Voltage level
Asymmetry level
Alarm ON delay
Alarm OFF delay
Accuracy
Temperature drift
Delay ON alarm
Repeatability
1 s ± 0.5 s or 6 s ± 0.5 s
< 200 ms
(input signal variation from
-20% to +20% or from
+20% to -20% of set value)
Output relay ON
Environment
Degree of protection
Pollution degree
Operating temperature
Storage temperature
Housing dimensions
DIN-rail version
Plug-in version
Weight
Screw terminals
Tightening torque
CE-Marking
LED, green
LED, red (flashing 2 Hz
during delay time)
2 x LED, yellow
(EN 60529)
IP 20
3 (DPC01), 2 (PPC01)
-20 to 60°C, R.H. < 95%
@ 475 VAC, 65 Hz
-20 to 50°C, R.H. < 95%
@ 550 VAC, 65 Hz
-30 to 80°C, R.H. < 95%
45 x 80 x 99.5 mm
36 x 80 x 87 mm
Approx. 220 g
Max. 0.5 Nm
acc. to IEC 60947
Yes
< 200 ms (delay < 0.1 s)
< 200 ms (delay < 0.1 s)
(15 min warm-up time)
± 1000 ppm/°C
± 10% on set value ± 50 ms
± 0.5% on full-scale
Mode of Operation
Connected to the 3 phases
(and neutral) DPC01 and
PPC01 operate when all 3
phases are present at the
same time and the phase
sequence is correct. It can
be decided whether to monitor upper and lower voltage
level of each phase or their
asymmetry and tolerance. In
any case if phase-netural
measurement is selected
both
phase-phase
and
phase-neutral voltages are
monitored.
Asymmetry is defined as follows:
max{|∆Vph-ph|}
nom. voltage
when measuring phasephase voltages and also as
follows: max{|∆Vph-n|}
nom. voltage
2
when measuring phase-neutral voltages. Tolerance is
defined as
max{|nom. voltage - ∆Vph-ph|}
nom. voltage
and also as
max{|nom. voltage - ∆Vph-n|}
nom. voltage
when measuring phase-neutral voltages.
Voltage level monitoring: if
one or more phase-phase or
phase-neutral voltage exceeds
the upper set level or drops
below the lower set level, the
red LED starts flashing 2 Hz
and the respective output
relay releases after the set
time period.
Asymmetry and tolerance
monitoring: if one of them
exceeds the set level the red
LED starts flashing 2 Hz and
the respective output relay
releases after the set time
period.
If
the
phase
sequence is wrong or one
phase is lost, both output
relays release immediately.
Only 200 ms delay occurs.
The failure is indicated by the
red LED flashing 5 Hz during
the alarm condition.
Example 1
(mains - over and under
phase-phase voltage - monitoring)
The relay monitors over and
under voltage, phase loss
and correct phase sequence.
Example 2
(starting and operating load asymmetry and tolerance
phase-neutral - monitoring)
DPC01 and PPC01 ensure
correct starting and operating conditions. They monitor
the voltage level, phase
sequence (correct direction
of the motor rotation) and
asymmetry.
Frequent failures are fuse
blowing and incorrect voltage level. In case of fuse
blowing the motor regenerates a voltage in the interrupted phase. These relays
detect the failure and react
due to excessive imbalance
among the phases.
Specifications are subject to change without notice (06.11.00)
DPC01, PPC01
Function/Range/Level and Time Delay Setting
34
Selection of function:
DIP-switch selector (1 to 6)
3 x 220 ∆ VAC (M23)
3 x 400 ∆ VAC (M48)
1
ON
3 x 208 ∆ VAC (M23)
3 x 380 ∆ VAC (M48)
Power ON delay 6 ± 0.5 s
Power ON delay 1 ± 0.5 s
3 x 230 ∆ VAC (M23)
3 x 415 ∆ VAC (M48)
2
Phase-neutral voltage
Phase-phase voltage
Selection of level and time
delay:
5
2 x SPDT relays
1 x DPDT relay
Centre knobs:
Setting of upper and lower
level or setting of asymmetry
and absolute tolerance of set
value on relative scale.
6
Asymmetry + tolerance
Overvoltage + undervoltage
Lower knobs:
Setting of delay on alarm time
on absolute scale (0.1 to 30 s).
3 x 240 ∆ VAC (M23)
3 x 480 ∆ VAC
(DPC01DM48)
Wiring Diagrams
Example 1
Example 1
N
L3
L2
L1
N
L3
L2
L1
µ
5
m<3
L1 L2 L3
m<3
16
18 26
28
6
7
4
3 8
9
U
U
L2
L3
L2
L3
µ
µ
µ
15
N
1
11
10
25
Example 2
Example 2
N
L3
L2
L1
N
L3
L2
L1
µ
µ
5
m<3
L1 L2 L3
m<3
16
18 26
28
6
7
4
3 8
9
U
U
L2
L3
L2
L3
µ
µ
N
15
11
1
10
25
PPC01
DPC01
Operation Diagrams
L1
L1
L2
L1
L2
L3
L1
L2
L3
L2
L3
L3
Relay (1) ON
Relay (2) ON
Red LED ON
1 or 6 s
Specifications are subject to change without notice (06.11.00)
3
DPC01, PPC01
Operation Diagrams (cont.)
L1 or
L1-L2
Upper Level
Hysteresis
L2 or
L2-L3
Hysteresis
Lower Level
L3 or
L1-L3
Relay 1(Upper)
ON (15/16/18)
T
1 or 6 s
Relay 2 (Lower)
ON (25/26/28) 1 or 6 s
Red LED ON
T
T
1 or 6 s
L2-L1 or
VL2-L1-VL3-L2
Asymmetry (+)
Hysteresis
L3-L2 or
VL3-L2-VL1-L3
Balanced
Hysteresis
Asymmetry (-)
L1-L3 or
VL1-L3-VL2-L1
Relay 1 Asymmetry
1 or 6 s
(15/16/18) ON
Red LED ON
1 or 6 s
Relay 2 Tolerance
(25/26/28) ON
1 or 6 s
T
T
T
T
T
L1 or
L1-L2
Tolerance (+)
Hysteresis
Nominal Voltage
L2 or
L2-L3
Hysteresis
Tolerance (-)
L3 or
L1-L3
4
Specifications are subject to change without notice (06.11.00)