Mitsubishi Electric PLK-J-LAN, Техническое руководство

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[2] Precautions for use
1. Do not inspect the control circuit with a tester.
The tester voltage could be applied on the semiconductor parts, and cause damage.
2. Always align the connector shape and direction, and securely insert the connector.
3. Use the machine away from strong noise sources such as high frequency welders.
4. Please never open the case.
Adjust the tightening of the case screws with the torque.
Above the specified torque, the screw may run idly and the case may be damaged.
5. Do not unplug the RS232C cable of the PLK-J-LAN with the power on.
It may cause malfunction and failure.
6. In order to reduce the influence of high frequency noise, attach the ferrite core to the RS232C cable of
PLK-J-LAN.
7. Notes on turning on the power again
Please make sure not to turn on the power supply switch until after the LED on the front panel of the control
box has completely turned off.
*Please note that if power supply is turned on again while LED still turns on, the data in the PLK-J-LAN
may be damaged.
8. If you need to maintain the safety of the system that uses GOT against unauthorized access from external
devices via the network incorporate measures taken by the user.
Also, if you need to keep the system secure against unauthorized access from external devices via the
Internet, please include measures such as firewall.
* Always deliver this manual to the end user.
* Store this manual nearby where it can be referred to when necessary.