Mitsubishi Electric FR-CC2-P, Инструкция по эксплуатации

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(H) Protective function parameter
PARAMETER
97
5
GROUP
H
5.3.3
Input phase loss protection selection
• When Pr.872 = "1 (initial value)", the Input phase loss (E.ILF) protection will be activated if one of three phases is detected
continuously lost for 1 second.
NOTE
• In the case of R/L1, S/L2 phase loss, the input phase loss protection will not operate, and the inverter will trip.
• If an input phase loss continues for a long time, the converter unit capacitor life will be shorter.
5.3.4
Emergency drive
This function is used in case of emergency such as a fire to forcibly continue inverter operation to drive a motor without
activating protective functions even if the inverter detects a fault. Using this function may cause damage of the motor or the
inverter because driving the motor is given the highest priority. Use this function for emergency operation only. When the
inverter is damaged by a fault, the motor operation can be continued by switching to the commercial power supply operation.
The emergency drive function is available only when the function is set in the master inverter. To enable the emergency
drive function, the function must be set in both the master inverter (FR-802-P) and the master converter unit.
By setting the emergency drive function in the inverter, the operation can be switched to the commercial power supply
operation at the occurrence of a fault which may cause damage of the converter unit or the inverter. The inverter does not
detect faults in the converter unit. When faults occur frequently in the converter unit, modify the wiring to enable switchover to
the commercial power supply operation using a programmable controller.

The function is available only when the parameter is set in the master converter unit. Settings in the slave does not enable the function.

When setting Pr.57 , set the same setting value in the master and the slave.
The input phase loss protective function on the converter unit input side (R/L1, S/L2, T/L3) can be enabled or disabled.
Pr. Name
Initial
value Setting
range
Description
872
H201 Input phase loss
protection selection
1
0 Without input phase loss protection
1 With input phase loss protection
Pr. Name
Initial
value Setting
range
Description
67
H301

Input phase loss
protection selection
0
0 to 10, 101
to 110
Select whether to output the Fault (ALM) signal during the
retry operation while the emergency drive operation is
performed.
0 to 10: The ALM signal is not output during retry.
101 to 110: The ALM signal is output during retry.
69
H303

Retry count display
erase
0 0
Setting "0" clears the retry success counter ("retry success"
means that the inverter successfully restarts).
523
H320

Emergency drive mode
selection
9999
100, 200 Select the operation mode of the emergency drive.
9999 Emergency drive disabled.
515
H322

Emergency drive
dedicated retry count
1
1 to 200 Set the retry count during emergency drive operation.
9999
Without retry count excess (no restriction on the number of
retries)
514
H324

Emergency drive
dedicated retry waiting
time
9999
0.1 to 600 s Set the retry waiting time during emergency drive operation.
9999 Waiting time: 1 s
57
A702

Restart selection
9999
0 Selected
9999 Not selected