PSWZ X1P
Operating Manual PSWZ X1P
21005-EN-11
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Unit features
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Measuring inputs for 3- or 1-phase motors
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Measuring voltage on both channels can be set jointly
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1 Reset input
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Positive-guided relay outputs:
– 2 safety contacts (N/O), instantaneous
– 1 auxiliary contact (N/C), instantaneous
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2 semiconductor outputs
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LED display for:
– Standstill on channel 1/2
– Supply voltage/fault
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Semiconductor outputs signal:
– Supply voltage/fault
– Switch status
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Feedback loop for monitoring external contactors
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Plug-in connection terminals (either spring-loaded terminal or screw terminal)
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See order reference for unit types
Safety features
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The relay meets the following safety requirements:
– The circuit is redundant with built-in self-monitoring.
– The safety device remains effective in the case of a component failure.
– The correct opening and closing of the safety device relays is tested automatically in
each on-off cycle.
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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.
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The standstill monitor prevents the plant from being enabled in the following cases:
– Power supply failure
– Component failure
– Measuring circuits are open circuit
– Coil defect/open circuit
