Mitsubishi Electric F700, Инструкция по эксплуатации

Страница: 177 / 341

168
Frequency 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. 76
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.
82
Jog operation
The Jog signal has precedence even during decrease in input current.
(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.
84
MRS
Output is shut off by the MRS signal even if input current decreases. (The inverter
stops when the MRS signal is turned off.)
112
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.
87
Retry
When retry was successful at error occurrence during decrease in input current,
retained frequency was not cleared and operation continues.
143
Added compensation,
override function
Operation of added compensation (terminal 1) and override compensation
(terminal 2) are invalid during decrease in input current.
160
Input filter time
constant
The value before filtering is detected.
When input current decreases, frequency after filtering (average value) is
retained.
161
Forward/reverse
rotation prevention
Motor rotation direction can be restricted independently of 4mA input check
setting.
173
PID control
Although PID operation is stopped when input current decreases, the X14 signal
remains on. (PID operation is valid.)
219
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
140
Pump function
If auxiliary motor switchover conditions of pump function is satisfied even when
input current decreases, motor connection/release operation is performed.
236
Traverse function
When input current decreases, traverse operation is performed using retained
frequency as reference.
246
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.
175
i
Parameters referred to
i
Pr. 73 Analog input selection Refer to page 160
Pr. 267 Terminal 4 input selection Refer to page 155