Mitsubishi FR-A740-00023-EC, Инструкция по эксплуатации

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294
Frequency/torque setting by analog
input (terminal 1, 2, 4)
(2) Function related to 4mA input check
Function Operation ( Pr. 573 = 1)
Refer to
page
Minimum frequency
Even if the input current decreases, minimum frequency setting clamp is valid. 151
Multi-speed operation
Operation by multiple speed signal has precedence even if input current decreases.
(Frequency is not retained when the input current decreases.)
Operation stops when a multi-speed signal turns off.
160
Jog operation
The Jog signal has precedence. (Frequency is not retained when the input current
decreases.)
Operation stops when the jog signal is turned off during decrease in input current.
PU/jog operation is enabled during PID control.
At this time, PU/jog operation has precedence during decrease in input current.
162
MRS
Output is shut off by the MRS signal even if input current decreases. (The inverter
stops when the MRS signal is turned off.)
225
Remote setting
The retained frequency will not change even if remote acceleration/deceleration and
clear are performed during decrease in input current. Reflected at restoration.
164
Retry
When retry was successful at error occurrence during decrease in input current,
retained frequency was not cleared and operation continues.
261
Added compensation,
override function
Operation of added compensation (terminal 1) and override compensation (terminal
2) are invalid during decrease in input current.
278
Input filter time
constant
The value before filtering is detected.
When input current decreases, frequency after filtering (average value) is retained.
280
Forward/reverse
rotation prevention
Motor rotation direction can be restricted independently of 4mA input check setting. 299
PID control
Although PID operation is stopped when input current decreases, the X14 signal
remains on. (PID operation is valid.)
348
Power failure stop
Even if input current decreases when undervoltage or power failure occurs, the motor
stops according to the setting of power-failure deceleration stop function
258
Traverse function
When input current decreases, traverse operation is performed using retained
frequency as reference.
369
Switch-over
When the switchover function is operated, frequency is the same as that of the
retained frequency.
Note that if 4mA input is made invalid once in switchover mode, the frequency is not
retained next time.
301
♦
Parameters referred to
♦
Pr. 73 Analog input selection Refer to page
275
Pr. 267 Terminal 4 input selection Refer to page
275