XPSAR351144P Crouzet USA, XPSAR351144P Datasheet - Page 249
![89H6662](/photos/40/67/406749/4784371_sml.jpg)
XPSAR351144P
Manufacturer Part Number
XPSAR351144P
Description
89H6662
Manufacturer
Crouzet USA
Datasheet
1.XPSMCCPC.pdf
(274 pages)
Specifications of XPSAR351144P
Contact Current Max
20mA
Contact Voltage Dc Nom
24V
Contact Configuration
7PST-NO
Relay Mounting
DIN Rail
External Height
66mm
External Width
114mm
External Depth
90mm
Rohs Compliant
Yes
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Operating principle
Principle:
page 2/248
2/248
Characteristics:
page 2/249
Safety automation system solutions
Preventa™ safety relay modules type XPSPVT
For dynamic monitoring of hydraulic valves on
linear presses
Safety module XPSPVT is specifically designed for monitoring hydraulic safety
system valves which control the movements of potentially hazardous machines.
The operating principle of this module is explained in the circuit diagram of a
hydraulic safety system for linear presses (see below).
This hydraulic safety system features a 3 position piston which controls the up and
down stroke of the operating cylinder. The circuit is equipped with a safety valve, to
complete the redundant system. This circuit must be activated to enable the up and
down stroke of the cylinder.
If either of the 2 pistons becomes defective (for example, due to a broken spring or
to oil contamination), and the valve piston shifts from its normal position towards the
open position, the XPSPVT module will detect it and prevent resumption of the
piston stroke.
Proximity sensors integrated in the valve to detect the piston positions and
connected to the XPSPVT module must be damped when the valve coils are in the
de-energized state (zero position).
The sensor circuits of the XPSPVT module are designed to allow connection of NPN
and PNP proximity sensors or sensing components. Either 2-wire or 3-wire types can
be used.
The wiring diagram on page 2/228 shows how to connect proximity sensors.
Hydraulic safety system circuit operating on a linear press.
Monitoring of valves in position 0.
(1) 3 position hydraulic valve.
(2) 2 position hydraulic valve.
References:
page 2/249
Operating principle
Closing
Y1
Pump
(1)
S1
(2)
S3
P
A B
P T
A B
S2
Closing +
opening
Opening
Pressure
release valve
Y3
Y2
Wiring Diagrams:
page 2/250
Pressure
release valve
Dimensions:
page 2/260
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