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165
Frequency setting by external terminals
4
P
ARAME
T
E
R
S
(2) Frequency setting storage
⋅
The frequency setting storage function stores the remotely-set frequency (frequency set by RH/RM operation) into
the memory (EEPROM). When power is switched off once, then on, operation is resumed with that output
frequency value. (
Pr. 59
= 1)
<Frequency setting storage conditions>
⋅
Frequency at the point when the start signal (STF or STR) turns off
⋅
The remotely-set frequency is stored every one minute after one minute has elapsed since turn off (on) of both
the RH (acceleration) and RM (deceleration) signals. (The frequency is written if the present frequency setting
compared with the past frequency setting every one minute is different. The state of the RL signal does not
affect writing.)
CAUTION
⋅
The range of frequency changeable by RH
(acceleration) and RM (deceleration) is 0 to
maximum frequency (
Pr. 1 or Pr. 18
setting). Note that
the maximum value of set frequency is (main speed
+ maximum frequency).
⋅
When the acceleration or deceleration signal switches on, acceleration/deceleration time is as set in
Pr. 44
Second acceleration/
deceleration time
and
Pr. 45 Second deceleration time
. Note that when long time has been set in
Pr. 7
or
Pr. 8
, the acceleration/
deceleration time is as set in
Pr. 7
or
Pr. 8
. (when RT signal is off)
When the RT signal is on, acceleration/deceleration is made in the time set to
Pr. 44
and
Pr. 45
, regardless of the
Pr. 7
or
Pr. 8
setting.
⋅
Even if the start signal (STF or STR) is off, turning on the acceleration (RH) or deceleration (RM) signal varies the preset
frequency.
⋅
When switching the start signal from ON to OFF, or changing frequency by the RH or RM signal frequently, set the frequency
setting value storage function (write to EEPROM) invalid (
Pr. 59
= "2, 3"). If set valid (
Pr. 59
= "1"), frequency is written to
EEPROM frequently, this will shorten the life of the EEPROM.
⋅
The RH, RM, RL signals can be assigned to the input terminal using any
Pr. 178 to Pr. 189 (input terminal function selection)
. When
terminal assignment is changed, the other functions may be affected. Please make setting after confirming the function of each
terminal.
⋅
Also available for the network operation mode.
Deceleration(RM)
Acceleration(RH)
Forward rotation(STF)
0Hz
ON
Time
(Hz)
Main speed setting
Pr.1
The set frequency is clamped at (main speed +
Pr.1
)
Output frequency is
clamped at
Pr.1
Set frequency
Output frequency
ON
ON
Содержание FR-A740-00023-EC
Страница 58: ...48 MEMO...
Страница 70: ...60 MEMO...
Страница 400: ...390 MEMO...
Страница 450: ...440 MEMO...
Страница 473: ...463 MEMO...