User guide

Operating Manual PSEN op4B Series
49
Defect Cause Checks and remedy
Irregular function of the
integral muting display
- Switch the device off and then
on again; if the fault persists,
contact PILZ.
Supply voltage error - Check the supply voltage
- If the fault persists, contact Pilz.
The supply voltage is
outside the permitted
range
Malfunction of the main
microprocessor
- Check the supply voltage
- If the fault persists, contact Pilz.
EMITTER:
Defect Cause Checks and remedy
General irregularity on
the emitter
- Check the supply voltage; if the
display does not go out, contact
Pilz.
Supply voltage error - Check the supply voltage
- If the fault persists, contact Pilz.
The supply voltage is
outside the permitted
range
Malfunction of the main
microprocessor
- Check the supply voltage
- If the fault persists, contact Pilz.
Flashing green
Flashing yellow
Flashing yellow
Constant green
Off
Off
Off
Off
Off
Off
Off
Constant green
Flashing yellow
Constant green
Off
Off
Off
Constant green