Pilz PSWZ X1P Manual

Safe monitoring relays
Up to PL e of EN ISO 13849-1
PSWZ X1P
Gertebild
Standstill monitor for safe standstill
][Bildunterschrift_Stillstandswchter
monitoring
Approvals
PSWZ X1P
Zulassungen

Block diagram

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de

Unit features

Positive-guided relay outputs:
Gertemerkmale
– 2 safety contacts (N/O), instanta-
neous
– 1 auxiliary contact (N/C), instan-
taneous
LED indicator for:
– Supply voltage
– Standstill on channel 1/2
– Switch status
– Fault signal if simultaneity time is
exceeded
Semiconductor outputs signal:
– Error
– Switch status
Semiconductor input for reset func-
tion
Measuring inputs for single or
three-phase motors
Measuring voltage selectable
Feedback Loop
Plug-in connection terminals (either
spring-loaded terminal or screw
terminal)
See order reference for unit types
Unit description
The unit is used for safe standstill
Gertebeschreibung
monitoring. It is designed for use on
B l o c k s c h a l t b i l d
Standstill monitoring functions on
plants with dangerous machine
parts or tools (EN 1088 clause 7.4),
Safety circuits in accordance with
EN 60204-1 and IEC 60204-1.
Standstill is only detected on power-
free measuring circuits. Residual volt-
ages, induced voltages or drives with-
in the position control will prevent safe
standstill detection!

Safety features

Relays K1 and K2 are interlocked in
][Sicherheitseigenschaften Stillstand
such a way that the unit cannot be
switched back on in the case of
contact welding or an open circuit.
The unit monitors the measuring
circuits for open circuit. If an open
circuit occurs between the unit and
the motor or on the motor itself, the
unit immediately switches off.
The standstill monitor prevents the
plant from being enabled in the fol-
lowing cases
– Power supply failure
– Component failure
– Measuring circuits are open cir-
cuit
– Coil defect/open circuit
NSG-D-2-336-2009-11