Pilz P1W Data Sheet
Electronic Monitoring Relays
True power monitoring
P1W
Technical Details P1W
Electrical data
Measuring voltage = Supply voltage 3 AC/1 AC: 42, 110, 230, 400, 415, 440,
Tolerance 85 ... 110 %
Power consumption Approx. 5 VA
Switching capability in accordance
with EN 60947-4-1, 10/91 AC1: 240 V/5 A/1200 VA
Output contacts 2 auxiliary contacts (C/O)
Contact fuse protection 6 A quick or 4 A slow
in accordance with EN 60947-5-1, 10/91
Max. switch-on current 10 A
Measuring circuit
Adjustable measuring range limit values 1 A version 0.125; 0.250; 0.375; 0.500;
True power monitor for 1- and
3-phase supplies for monitoring
minimum and maximum true power
values
Features
● Direct measurement of motors
with a 2.2 kW (400 V) rating
● Output signal either latching/
non-latching
● Short, adjustable reaction times
● High level of accuracy
● Operates to normally energised
or normally de-energised mode
● Suitable for current transformers
Max. overload 1 A version: 1.2 A; 6 A/max. 3 s
Response delay 1A version: 0,25 ... 3 s adjustable
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 115 mm
Weight 520 g
500, 550 V
DC1: 24 V/1 A/24 W
0.625 A; 0.750; 0.875; 1.0; 1.125 A
5 A version: 0.5; 1; 1.5; 2; 3; 4; 5; 6 A
5 A version: 6 A; 25 A/max. 3 s
5 A version: 1 ... 30 s adjustable
5 A version: 2.5 ... 15 VA, Class 3
2
Single-core or multi-core with crimp
connector
4
Description
The P1W monitors whether true
power falls below or exceeds a
The true power monitor is enclosed
in a 90 mm wide P-75 housing.
Single or three phase AC voltage is
required for operation.
Features:
● Relay outputs:
2 auxiliary contact (C/O)
● 2 versions with adjustable
measuring ranges up to
max. 1 A or up to max. 5 A
● Underload and overload
switching points
● Response delay for under- and
overload can be set separately.
● Adjustable start-up suppression
defined level on AC or 3-phase
current loads. The minimum and
maximum permitted true power
P
and P
min
potentiometers.
are set on separate
max
The P1W determines true power
from the phase voltage and the
measuring current. If the derived
true power exceeds the preset value
P
, the auxiliary contact assigned
max
to P
switches state and the LED
max
is on. If the derived true power falls
below the preset value P
auxiliary contact assigned to P
switches state and the LED is on.
min
, the
min
time
● Automatic or manual reset
● LEDs for supply voltage and
switching status of auxiliary
contacts P
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-235-07/00
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
and P
min
max
Electronic Monitoring Relays
True power monitoring
P1W
Block diagram
k
L1
I
M
U
L1
U
I
I
int
n*I
M
I
int
U
L1
L2
L3
Power supply
cos j*k
L1
*
int
*
t
a
+
0
P
P
min
14
12
DP
DP
min
max
&
Control
logic
&
t
r,min
t
r,max
K1
11
Y1
N
Y2
24
22
K2
21
P
&
min-PW
&
P
max-PW
P
max
4
I
Measuring currents
M
n Measuring range factor
U
L1
cos j Power factor
Measuring voltages
Timing diagram
Measuring circuit
Meßkreis
Betriebsspannung
Supply voltage
Ausgang P
Output P
Ruhestromprinzip
Normally energised
Ausgang P
Output P
Ruhestromprinzip
Normally energised
Ausgang P
Output P
Arbeitsstromprinzip
Normally de-energised
Ausgang P
Output P
Arbeitstromprinzip
Normally de-energised
mode
max
mode
mode
max
mode
k Correction factor
Start-up suppression time
t
a
PWTrue power
P
max
P
min
0
U
U
B
11
min
max
11
21
max
21
11
min
max
11
21
max
21
B
0
14
12
24
22
14
12
24
22
t
a
t
r,max
PW > P
max
P
P
t
t
r,min
PW < P
Min. true power
min
Max. true power
max
Response delay
rmin, rmax
min
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-235-07/00
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
Loading...