Mitsubishi Electric FR-E800 Instruction Manual page 326

• The following diagram shows the operation when the commercial power supply operation during emergency drive is
switched OFF using the X51 signal (in the commercial mode or in the fixed frequency mode (Pr.523 = "411")).
Power supply
X84
STF
X51
ALM3
Command
MC3
MC2
Actual operation
MC3
MC2
Frequency
Pr.524
Y65
 Emergency drive operation selection (Pr.523, Pr.524)
• Use Pr.523 Emergency drive mode selection to select the emergency drive operation. Set a value in the hundreds place
to select the operation when a valid protective function is activated (fault) during emergency drive operation. Set values in
the ones and tens places to select the operation method.
• For protective functions (faults) valid during emergency drive operation, refer to
Pr.523 setting Emergency drive operation mode
1[][] Output shutoff mode
2[][] Retry / output shutoff mode
*1
Retry / commercial mode
3[][]
*1
Commercial mode
4[][]
[]00 Normal operation
[]11
Fixed frequency
mode
[]12
[]21
PID control
mode
[]22
9999 Emergency drive disabled.
*1 Under PM sensorless vector control, the operation is not switched over to the commercial power supply operation and the output is shut off.
ON
ON
3s
ON
Fault removed by the Fault clear signal
ON
ON
MC delay
Motor rotations per minute
Emergency drive commercial power supply operation
Normal operation Emergency drive in operation
ON
Selecting operation
when a fault occurs
during emergency
drive operation
Forward rotation Selecting the
operation method
during emergency
Reverse rotation
drive operation
Forward rotation
Reverse rotation
ON
Switching operation at a fault
ON
MC delay
Pr.136
ON
page
Output shutoff when a fault occurs.
Retry operation when a fault occurs.
Output shutoff when a fault for which retry is not permitted
occurs or when the retry count is exceeded.
Retry operation when a fault occurs.
The operation is switched over to the commercial power supply
operation when a fault for which retry is not permitted occurs or
when the retry count is exceeded. While Pr.515 = "9999", the
operation is switched over to the commercial power supply
operation when the retry count reaches 200.
The operation is switched over to the commercial power supply
operation when a fault occurs.
The operation is performed with the same set frequency and by
the same start command as those in the normal operation.
Use this mode to avoid output shutoff due to a fault.
The operation is forcibly performed with the frequency set in
Pr.524.
Even when the motor is stopped, the operation is started by the
emergency drive operation.
The operation is performed under PID control using the Pr.524
setting as a set point. The measured values are input in the
method set in Pr.128.
11. (H) Protective Function Parameters
11.8 Emergency drive (Fire mode) (Standard model / Ethernet model)
ON
Pr.136
ON
MC delay
Coasting
Time
327.
Description
11
12
13
14
15
16
17
18
19
20
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