Datasheet

Relays for functional safety
Safety relays PNOZ X
PSWZ X1P
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
538
Measuring circuit 787949 787950 787951
Frequency range 0 - 3 kHz 0 - 3 kHz 0 - 3 kHz
Input resistance 1.300 kOhm 1.300 kOhm 1.300 kOhm
Switching threshold per
channel
Response value Uon
(adjustable) 20 - 500 mV 120 - 3000 mV 7,5 - 500 mV
Release value Uoff 2 x Uon 2 x Uon 2 x Uon
Inputs 787949 787950 787951
Voltage at
Feedback loop DC 24 V 24 V 24 V
Current at
Feedback loop DC 35 mA 35 mA 35 mA
Max. inrush current im-
pulse
Current pulse, feed-
back loop 0,12 A 0,12 A 0,12 A
Pulse duration, feed-
back loop 0,1 s 0,1 s 0,1 s
Reset input 787949 787950 787951
Low signal < 5 V < 5 V < 5 V
High signal > 15 V > 15 V > 15 V
Current 20 mA 20 mA 20 mA
Semiconductor outputs 787949 787950 787951
Number 2 2 2
Voltage 24 V 24 V 24 V
Current 50 mA 50 mA 50 mA
External supply voltage 24 V 24 V 24 V
Voltage tolerance -20 %/+20 % -20 %/+20 % -20 %/+20 %
Relay outputs 787949 787950 787951
Number of output con-
tacts
Safety contacts (N/O),
instantaneous 2 2 2
Auxiliary contacts (N/C) 1 1 1
Max. short circuit current
IK 1 kA 1 kA 1 kA
Utilisation category
In accordance with the
standard EN 60947-4-1 EN 60947-4-1 EN 60947-4-1