Initiating A Protective Function - Mitsubishi Electric 800 Series Instruction Manual

10.5

Initiating a protective function

A fault (protective function) is initiated by setting the parameter.
This function can be used to check how the system operates at activation of a protective function.
Pr. Name
997
Fault initiation
H103
• To initiate a fault (protective function), set the assigned number of the protective function to be initiated in Pr.997.
• The value set in Pr.997 is not stored in EEPROM.
• When the protective function is activated, the inverter output is shut off and the inverter displays the fault indication and
outputs a Fault (ALM) signal.
• The latest fault in the fault history is displayed while the fault initiation function is in operation. After a reset, the fault history
goes back to the previous status. (The protective function generated by the fault is not saved in the fault history.)
• Perform inverter reset to cancel the protective function.
• For the selectable parameter by Pr.997 and the corresponding protective functions, refer to the Instruction Manual
(Maintenance).
NOTE
• If a protective function is already operating, no fault can be activated by Pr.997.
• The retry function is disabled when a protective function has been initiated by the fault initiation function.
• If a fault occurs after a protective function has been activated, the protective function indication does not change. The fault is
not saved in the fault history either.
214
10.(H) Protective Function Parameters
10.5 Initiating a protective function
Initial value Setting range
16 to 253
9999
9999
Description
The setting range is the same with the one for fault data codes of the
inverter (which can be read through communication). Written data is not
stored in EEPROM.
The read value is always "9999". The protective function is not
activated with this setting.