IMPORTANT:

• If problems such as communication interruptions due to a disconnection of the signal wire or malfunction of the Display cannot be detected on the inverter side, implement a precautionary measure by using the inverter's communication retry function or communication check function. Refer to your External Device manual for details.
• Do not reset the inverter while communication is enabled. This may cause malfunction. Prior to resetting the inverter, take the Display offline.

IMPORTANT:

•  As shown in the following table, you may need to enter "9999" (meaning an invalid parameter setting or the like) depending upon the parameter types. In this case, the data written and read from the Display is as follows:
  

  Inverter Series	Inverter Setting	Written Data	Read Data
  FR-S500/FR-F500J series	---	-1        (0xFFFF)	-1        (0xFFFF)
  	888	-16      (0xFFF0)	-16      (0xFFF0)
  Series other than above	9999	-1        (0xFFFF)	-1        (0xFFFF)
  	8888	-16      (0xFFF0)	-16      (0xFFF0)