Pilz P1WP Data Sheet

Electronic Monitoring Relays

True power monitoring

P1WP

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

●Analogue output

●Suitable for current transformers

●Suitable for use with motors and generators

Technical Details	P1WP
Electrical data
Measuring voltage = Supply voltage	3 AC: 24, 42, 48, 110, 120, 230, 240,
	400, 415, 440, 460, 500 550 V
Tolerance	85 ... 110 %
AC frequency range	50 ... 60 Hz
Power consumption	Approx. 4 VA
Output circuit
Motor operation:
Output voltage	DC: 0 ... 10 V
Terminating impedance	> 1 kW
Output current	DC: 0 ... 20 mA
Terminating impedance	< 0.5 kW
Generator operation:
Output voltage	DC: 0 ... -10 V
Terminating impedance	> 2 kW
Output current	DC: 0 ... -10 mA
Terminating impedance	< 0.5 kW
Measuring circuit
Adjustable measuring range limit values	1 A version: 0.2; 0.4; 0.6; 0.8; 1 A
	5 A version: 1; 2; 3; 4; 5 A
Max. overload	1 A version: 1.2 A, 6 A/max. 3 s
	5 A version: 6 A, 25 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 mm2
of external conductor	Single-core or multi-core with crimp
	connector
Torque setting for connection terminals	1.2 Nm (screws)
Dimensions (H x W x D)	75 x 45 x 110 mm
Weight	380 g

Description

The true power converter is enclosed in a P-75 housing. Three phase AC 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

The P1WP converts the true power or the rated power used on a motor or generator into an electrical output signal which is proportional to the true power. Measurement is suppressed during the start-up phase to avoid spurious output signals. The start-up suppression time ta can be set.

Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland	NSG-D-2-233-07/00
Telefon [phone], Telefax [phone], E-Mail: [e-mail]

Electronic Monitoring Relays
True power monitoring
P1WP
Block diagram
	k1	L1	L2	L3
						+
				Power supply		0
	IM					-	h
					U		PW		UA	U
					IM			&	IA	U
							U *IM * cos j* k			A
										N
										I
									PA	I
									PW	A
			n * IM
							ta
	U/I1
IM	Measuring current				PW	True power			UA	Output voltage
n	Measuring range factor				h	Efficiency			IA	Output current
U	Measuring voltage				t a	Start-up suppression time			PA	Output power
cos j Power factor
Timing diagram
				10 V
				20 mA		"x"
					UA
			Generator operation		IA
			-P max				P W
							P max
						Motor operation
					- 10 mA
				UA
					- 20 V
UA	Output voltage
IA	Output current
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland										NSG-D-2-233-07/00
Telefon [phone], Telefax [phone], E-Mail: [e-mail]