Pilz P1WPF Data Sheet
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
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