Mitsubishi Electric FR-F800 Series Instruction Manual page 282

• To return to the normal operation during emergency drive operation, do the following. (The operation will not be returned
to normal only by turning OFF the X84 signal.)
Reset the inverter, or turn OFF the power supply.
Clear a fault by turning ON the X51 signal while the sequence function is enabled (when the protective function is
activated).
• The operation is switched over to the commercial power supply operation in case of the following during emergency drive
operation while the commercial mode or the retry / commercial mode is selected.
24 V external power supply operation, power failure status or operation with the power supplied through R1/S1 (except
when the DC feeding mode 1 or 2 is selected), undervoltage
• To input the X84 signal, set "84" in any of Pr.178 to Pr.189 (Input terminal function selection) to assign the function.
• To output the Y65 signal, set "65 (positive logic)" or "165 (negative logic)" in any of Pr.190 to Pr.196 (Output terminal
function selection) to assign the function. To output the ALM3 signal, set "66 (positive logic)" or "166 (negative logic)" in
any of Pr.190 to Pr.196 (Output terminal function selection) to assign the function.
• The X84 signal input is valid either through the external terminal or via network regardless of the Pr.338 and Pr.339
settings (Selection of control source in Network operation mode).
• During emergency drive operation, the operation is performed as Pr.502 Stop mode selection at communication error
= "0 (initial value)" and communication errors (such as E.SER) do not occur. (A protective function is performed according
to its operation during emergency drive operation.)
• The following diagram shows the operation of the emergency drive function (in the retry / output shutoff mode or in the
fixed frequency mode (Pr.523 = "211")).
Frequency
Pr.524
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Continuous operation except in case of critical faults
(such as E.PUE)
RES
X84 ON
STF
ON
3s
ALM3
ALM
Motor rotations per minute Motor rotations per minute Motor rotations per minute
Y65
search engine
Emergency drive continued
Retry in case of critical faults
ON
ON
Coasting
Retry waiting time
Pr.514
Emergency drive in operation
ON
Emergency drive finished
ON
ON
Time
Normal operation
5. PARAMETERS
5.7 (H) Protective function parameter
1
2
3
4
5
6
7
8
9
10
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