XPSAF5130P SQUARE D, XPSAF5130P Datasheet - Page 241

• Manufacturer Part Number: XPSAF5130P
• Description: SAFETY RELAY 300V 2.5A PREVENTA
• Manufacturer: SQUARE D

Specifications of XPSAF5130P

• Contact Current Max: 30mA
• Contact Voltage Dc Nom: 24V
• Contact Configuration: 3NO
• Relay Mounting: DIN Rail
• External Height: 66mm
• External Width: 114mm
• External Depth: 22.5mm
• Rohs Compliant: Yes

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Operating principle
Principle:
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Characteristics:
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Safety automation system solutions
Preventa™ safety relay modules type XPSVNE
For zero speed detection
Preventa™ safety relay modules type XPSVNE for zero speed detection are used
to detect the stop condition of electric motors. Their most common applications
include: providing the unlock signal for electrically interlocked sliding or removable
machine guards, controlling rotation direction signals for reversing motors and
engaging locking brakes after a motor has come to a standstill.
As electric motors run down, a remanent voltage is produced in the windings of the
motor due to residual magnetism. This voltage is proportional to the speed of the
motor and, therefore, decreases as the motor comes to a standstill.
This remanent voltage is measured in a redundant manner so as to detect the stop
condition of the motor. The cabling between the motor windings and the inputs of the
XPSVNE module is also monitored to prevent a cabling breakage or anomaly being
seen as a stopped motor.
A transformer should not be used to connect the motor to terminals Z1, Z2 and Z3
since there is no monitoring of the connection with the motor winding via the
resistance monitoring.
Modules XPSVNE are suitable for detecting the stop condition of all types of a.c. or
d.c. motor driven machines which, when the motor runs down, produce a remanent
voltage in the windings due to residual magnetism. These machines can be
controlled by electronic devices, such as variable speed drives or d.c. injection
brakes.
The input filters for standard XPSVNE modules are designed for a frequency of up to
60 Hz.
For motors operating at a frequency higher than 60 Hz, which therefore produce a
high frequency remanent voltage, special modules XPSVNEppppHS should be
used.
The XPSVN is not compatible with Wound Rotor Motors. These motors are typically
used in high HP (1000+) low speed applications, where the additional windings
(required for these types of motors) pay for themselves. If power is removed from
stator, but rotor is left energized, then transformer coupling between the two could
create a small voltage across the stator. This could make the XPSVN think the motor
is still turning, which means the safety outputs would never energize or change state.
These motors do not have residual magnetism in the rotor that can act as a source of
flux for generator effect, in which case the XPSVN may think the motor is at zero
speed, and could energize the safety outputs while the motor is still running. Wound
Rotor motors are not in common use today, and very rare.
The XPVN is not designed to detect locked rotor conditions. Here the motor still has
voltage applied to it, but in essence has zero speed. Generally, a locked rotor
condition is not a safe state for machinery nor the operators. The XPSVN will sense
voltage applied to the windings, and will not indicate the motor’s “apparent” zero
speed. The outputs of the XPSVN will not change state, the gates or guards will not
be unlocked, and operators will not be allowed access to the unsafe area.
Modules XPSVNE have 2 potentiometers mounted on the front cover of the module
which allow independent adjustment of the switching threshold for each input circuit.
This allows adjustment for different types of motors and application requirements.
To aid diagnostics, modules XPSVNE have 4 LEDs and 2 solid-state outputs to
provide information on the status of the zero speed detection circuit.
References:
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Operating principle
Wiring Diagrams:
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Dimensions:
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