Electronic Monitoring Relays
True power monitoring
P1WPF
Technical Details P1WPF
Electrical data
Supply voltage 1AC: 24, 42, 48, 110, 120, 230, 240, 400 V
Tolerance 85 ... 110 %
Power consumption Approx. 4 VA
Output circuit
Motor operation:
Output voltage
Terminating impedance > 1 kW
Output current DC: 0 ... 20 mA
Terminating impedance < 0.5 kW
Generator operation:
Output voltage
Terminating impedance > 2 kW
Output current DC: 0 ... -10 mA
True power converter for 1 and
3-phase power supplies with
analogue true value output
Features
● Direct measurement of motors
with a 2.2 kW (400 V) rating
● For frequencies up to 200 Hz
● Analogue output
● For frequency-controlled drives
● Suitable for current transformers
● Suitable for use on motors and
generators
Terminating impedance < 0.5 kW
Measuring circuit
Measuring voltage 3 AC: 24, 42, 48, 110, 120, 230, 240,
Tolerance 85 ... 110 %
AC frequency range 30 ... 200 Hz
Adjustable measuring range limit values 1 A version: 0.2; 0.4; 0.6; 0.8; 1 A
Max. overload 1 A version: 1.2 A, 6 A/max. 3 s
Reaction time Approx. 200 ms
Start-up suppression time 0.5 ... 20 s adjustable
Mechanical data
Max. cable cross section 2 x 2.5 mm
of external conductor Single-core or multi-core with crimp
Torque setting for connection terminals 1.2 Nm (screws)
Dimensions (H x W x D) 75 x 45 x 110 mm
Weight 380 g
DC: 0 ... 10 V
DC: 0 ... -10 V
400, 415, 440, 460, 500 550 V
5 A version: 1; 2; 3; 4; 5 A
5 A version: 6 A, 25 A/max. 3 s
2
connector
4
Description
The true power converter is enclosed
in a P-75 housing. A three-phase AC
current and a single-phase control
voltage is required for operation.
Features:
● 2 versions, each with 5 adjustable
measuring ranges, up to max. 1 A
or up to max. 5 A
● Adjustable start-up suppression
time
● LED for supply voltage
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-255-09/00
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
The P1WPF converts the true power
or rated power used by a motor or
generator into an electrical output
signal which is proportional to true
power. Measurement is suppressed
during the start-up phase to avoid
any spurious output signals. The
start-up suppression time ta can be
set.
Electronic Monitoring Relays
True power monitoring
P1WPF
Block diagram
k1
L1 L2 L3
A1 A2
4
I
M
n*I
M
U/I1
I
Measuring current
M
n Measuring range factor
U Measuring voltage
cos j Power factor
Timing diagram
Generator operation
Power supply
PWTrue power
h Efficiency
t
10 V
20 mA
+
0
h
-
U
cos j*k
I
M
Start-up suppression time
a
I
A
U*I
M
*
t
a
"x"
U
A
U
P
W
&
A
I
P
A
P
W
U
A
I
A
U
A
N
I
UAOutput voltage
I
Output current
A
PAOutput power
P
max
W
Output voltage
U
A
I
Output current
A
-P
max
U
A
-10 mA
-20 V
P
Motor operation
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-255-09/00
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
Electronic Monitoring Relays
True power monitoring
P1WPF
Connection examples
● Example 1
Measuring a three phase motor, I > 5 A
L1
L2
L3
U
S
1L1
0V
1L2
n3
~
U
B
L1 L2
U
S
A1 A2
K1
P1WPF
k U/I N ±U
UVW
M1
M 3~
UBSupply voltage
I
Nominal current
N
PE
I > 5 A
N
● Example 2
Measuring a three phase motor, I > 5 A (with current converter)
L1
L2
L3
U
S
1L1
0V
1L2
n3
~
U
L3
±I
A
V
4
B
L3
±I
A
V
UBSupply voltage
I
Nominal current
N
L1 L2
U
S
A1 A2
K1
P1WPF
K k
T1
L l
UVW
M1
M 3~
I > 5 A
PE
N
k U/I N ±U
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-255-09/00
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
Electronic Monitoring Relays
True power monitoring
P1WPF
General Details
Unless stated otherwise in the technical details for the specific unit.
Electrical data
AC frequency range 50 ... 60 Hz
DC residual ripple 160 %
Contact material AgCdO
Continuous duty 100 %
Environmental data
EMC EN 50 081-1, 01/92; EN 50.082-2, 03/95
Vibration in accordance
with EN 60068-2-6, 04/95 Frequency: 10 ... 55 Hz,
Climatic suitability IEC 60068-2-3, 1969
Airgap creepage DIN VDE 0110-1, 04/97
Ambient temperature -10 ... +55 °C
Storage temperature -40 ... +85 °C
Mechanical data
Torque setting for connection terminals 0.6 Nm (screws)
Mounting position Any
Housing material Thermoplastic Noryl SE 100
Protection types Mounting: IP 54
Amplitude: 0.35 mm
Housing: IP 40
Terminals: IP 20
4
Order references key
UBSupply voltage
UMMeasuring voltage
IMMeasuring current
IAOutput current
Order references
Type U
P1WPF 230 VAC 230 VAC 5 A 495 850
P1WPF 230 VAC 230 VAC 1 A 495 870
P1WPF 400 VAC 230 VAC 5 A 495 860
P1WPF 230 VAC 400 VAC 1 A 4-20 mA 495 863
P1WPF 110 VAC 415 VAC 5 A 495 465
P1WPF 110 VAC 500 VAC 5 A 495 480
P1WPF 230 VAC 500 VAC 1 A 495 865
P1WPF 110 VAC 440 VAC 5 A 4-20 mA 495 473
Additional versions available on request
B
U
M
I
M
I
A
Order no.
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-255-09/00
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
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