Consult on the PXR with the following:
[Note] Modbus™ is a trademark of Modicon.
Ciltect ™ is a trade mark of CI Technology.
Over-temperature Protection
Any control system design should take into account that any part of the system has the potential to fail.
For temperature control systems, continued heating should be considered the most dangerous condition, and the machine
should be designed to automatically stop heating if unregulated due to the failure of the control unit or for any other reason.
The following are the most likely causes of unwanted continued heating:
1) Controller failure with heating output constantly on
2) Disengagement of the temperature sensor from the system
3) A short circuit in the thermocouple wiring
4) A valve or switch contact point outside the system is locked to keep the heat switched on.
In any application where physical injury or destruction of equipment might occur, we recommend the installation of inde-
pendent safety equipment, with a separate temperature sensor, to disable the heating circuit in case of overheating.
The controller alarm signal is not designed to function as a protective measure in case of controller failure.
Safety Precaution
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Before using the PXR, read the “Instruction Manual” or consult with your local distributor or Fuji Electric for safety
purpose.
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The uses and places for some of equipment described in this manual are limited. Some devices need regular inspec-
tions. Consult with your local distributor or Fuji Electric.
●
Only electricians should connect this equipment.
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The contents of this manual have been prepared carefully. However, it should be noted that Fuji Electric is not respon-
sible for any loss, including consequential damage from errors in writing or missing information.
Before operating the PXR, carefully read the safety precaution in the “Instruction Manual”.
Information in this catalog is subject to change without notice.
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