Pilz P1W03 Data Sheet
Electronic Monitoring Relays
True power monitoring
P1W03
Technical Details P1W03
Electrical data
Supply voltage
Tolerance 85 ... 110 %
Frequency range 50 ... 60 Hz
Power consumption Approx. 4 VA
Output circuit
Motor operation:
Output voltage
Terminating impedance > 1 kW
Output current DC: 0 ... 20 mA or 4 ... 20 mA
Terminating impedance < 0.5 kW
Generator operation:
Output voltage
Terminating impedance > 2 kW
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 0 ... 20 mA
or 4 ... 20 mA or 0 ... 10 V
and 10 ... 0 V
● 2-phase current measurement
(Aron wiring principle)
● Offset compensation
● Amplification factor
● Short reaction times
● Suitable for current transformers
● Suitable for frequency-regulated
drives
Output current DC: 0 ... -10 mA
Terminal impedance < 0.5 kW
Measuring circuit
Measuring voltage 3AC: 24, 42, 48, 110, 120, 230, 240,
Tolerance 85 ... 110 %
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. 50 ms (when 63% change in
Start-up suppression time 0.5 ... 20 s adjustable
Requirements for current transformer 1 A version: 1.5 ... 7.5 VA, Class 3
Mechanical data
Max. cross section of external conductor 2 x 2.5 mm
Torque setting for connection terminals 1.2 Nm (screws)
Dimensions (H x W x D) 75 x 90 x 110 mm
Weight 460 g
1 AC: 24, 42, 48, 110, 120, 230, 240, 400 V
DC: 0 ... 10 V or 10 ... 0 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
output voltage occurs)
4
5A version: 2.5 ... 15 VA, Class 3
2
Single-core or multi-core with crimp
connector
Description
The true power monitor is enclosed
in a 90 mm wide 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 amplification factor via
potentiometer: 0 ... 10
● Offset correction via
potentiometer: 0 ... 10 V
● Adjustable start-up suppression
time
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-238-07/00
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
● LED for supply voltage
P1W03 measures the load current of
the motor. The unit calculates the
true power from the size of the load
and the supply voltage and applies a
signal proportional to true power to
the outputs. One current, one
voltage and an inverse voltage
output are available.
P1W03 is suitable for measuring
frequency-controlled motors. The
output signal is only proportional to
the power if the frequency is
constant.
Electronic Monitoring Relays
True power monitoring
P1W03
Internal wiring diagram
4
k1 k3
I
M1IM3
U/I1 W/I3
, IM3 Measuring currents
I
M1
n Measuring range factor
U
Measuring voltages
L1... L3
cos j Power factor
L1 L2 L3 A2A1
n*I
M3
n*I
M1
Timing diagram
Generator operation
Power supply
Multiplexer voltage
Multiplexer current
10 V
20 mA
+
0
-
U
L1, L2, L3
I
= I
M1, M3
Start-up suppression time
t
a
x Amplification factor
x
= U
cos j*k
U*I
M
M
*
t
a
PWTrue power
DP Offset
U
A
"x"
U
A
I
A
"x"
DP
P
W
-DP
P
W
&
U
I
P
A
U
U
A
N
U
U
A
I
I
A
UAOutput voltage
UAInverse output voltage
I
Output current
A
10 V
20 mA
"x"
U
A
I
A
-P
max
UAOutput voltage
IAOutput current
P
P
max
Motor operation
-10 mA
U
A
-20 V
W
P
Motor operation
max
P
W
IAOutput current 4 ... 20 mA
UAInverse output voltage
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-238-07/00
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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