Mitsubishi Electric 800 Series Instruction Manual page 249

• 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")).
RES
X84
STF
ALM3
ALM
Frequency
Pr.524
Y65
• The following diagram shows the operation of switching over to the commercial power supply operation during emergency
drive operation by using the CS signal (in the commercial mode or in the fixed frequency mode (Pr.523 = "411")).
Power supply
Frequency
Pr.524
*1 Input the CS signal via an external terminal.
248
5. PARAMETERS
5.7 (H) Protective function parameter
Continuous operation except in case of critical faults
(such as E.PUE)
Retry in case of critical faults
ON
ON
3s
Motor rotations per minute
X84
ON
3s
STF
ON
*1
CS
ON
MC3
ON
MC2
MC3
ON
MC2
MC delay
Motor rotations per minute
Normal operation
Y65
Emergency drive continued
ON
ON
Coasting
Retry waiting time
Pr.514
Emergency drive in operation
ON
Emergency drive continued
ON
ON
MC delay
Pr.136
Emergency drive commercial power supply operation Emergency drive commercial power supply operation Emergency drive commercial power supply operation
Emergency drive in operation
ON
Emergency drive finished
ON
ON
Time
Normal operation
ON
ON
Coasting
Time