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Frequency setting by external terminals
(1) Remote setting function
Use Pr. 59 to select whether the remote setting function is used or not and whether the frequency setting storage function
in the remote setting mode is used or not.
When Pr. 59 is set to any of "1 to 3" (remote setting function valid), the functions of the RH, RM and RL signals are
changed to acceleration (RH), deceleration (RM) and clear (RL).
When using the remote setting function, following frequencies can be compensated to the frequency set by RH and RM
operation according to the operation mode.
During external operation (including
Pr. 79
= "4") ...................................external frequency command other than multi-speed
settings
During external operation and PU combined operation (
Pr. 79
= "3") .....PU frequency command or terminal 4 input
During PU operation ...............................................................................PU frequency command
(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
Remotely-set frequency is stored every minute after turning OFF (ON) the RH (acceleration) and RM(deceleration)
signals together. (The frequency is overwritten if the latest frequency is different from the previous frequency when
comparing the two. The state of the RH signal does not affect writing.)
NOTE
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 the time set in Pr. 7 or Pr. 8 is longer than
the time set in Pr. 44 or Pr. 45, 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 in 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 Pr. 59 = "1" or "2")
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. 182 (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