Mitsubishi Electronics FR-F740P ユーザーズマニュアル

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Frequency setting by external terminals
4.7 Frequency setting by external terminals
4.7.1
Multi-speed setting operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)
The above parameters allow their settings to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write selection.
*1
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 201)
*2
Performing IPM parameter initialization changes the settings. (Refer to page 80)
(1) Multi-speed setting (Pr. 4 to Pr. 6)
⋅ Operation is performed at the frequency set in Pr. 4 when the RH signal turns ON, Pr. 5 when the RM signal turns
ON, and Pr. 6 when the RL signal turns ON.
Purpose
Parameter that must be Set
Refer to Page
Make frequency setting by 
combination of terminals
Multi-speed operation
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, 
Pr. 232 to Pr. 239
Perform jog operation
Jog operation
Pr. 15, Pr. 16
Added compensation for multi-speed 
setting and remote setting
Multi-speed input 
compensation selection
Pr. 28
Infinitely variable speed setting by 
terminals
Remote setting function
Pr. 59
Can be used to change the preset speed in the parameter with the contact terminals.
Any speed can be selected by simply turning ON/OFF the contact signals (RH, RM, RL, REX signals).
Parameter 
Number
Name
Initial 
Value
Setting Range
Description
4
Multi-speed setting (high speed)
60Hz 
0 to 400Hz
Set the frequency when RH turns ON.
5
Multi-speed setting (middle speed)
30Hz
0 to 400Hz
Set the frequency when RM turns ON.
6
Multi-speed setting (low speed)
10Hz
0 to 400Hz
Set the frequency when RL turns ON.
24
Multi-speed setting (speed 4)
9999
0 to 400Hz, 9999
Frequency from speed 4 to speed 15 can 
be set according to the combination of 
the RH, RM, RL and REX signals.
9999: not selected
25
Multi-speed setting (speed 5)
9999
0 to 400Hz, 9999
26
Multi-speed setting (speed 6)
9999
0 to 400Hz, 9999
27
Multi-speed setting (speed 7)
9999
0 to 400Hz, 9999
232 
Multi-speed setting (speed 8)
9999
0 to 400Hz, 9999
233 
Multi-speed setting (speed 9)
9999
0 to 400Hz, 9999
234 
Multi-speed setting (speed 10)
9999
0 to 400Hz, 9999
235 
Multi-speed setting (speed 11)
9999
0 to 400Hz, 9999
236 
Multi-speed setting (speed 12)
9999
0 to 400Hz, 9999
237 
Multi-speed setting (speed 13)
9999
0 to 400Hz, 9999
238 
Multi-speed setting (speed 14)
9999
0 to 400Hz, 9999
239 
Multi-speed setting (speed 15)
9999
0 to 400Hz, 9999
REMARKS
⋅ In the initial setting, if two or three speeds are simultaneously selected, priority is given to the set frequency of the lower signal.
For example, when the RH and RM signals turn ON, the RM signal (Pr. 5) has a higher priority.
⋅ The RH, RM, RL signals are assigned to the terminal RH, RM, RL in the initial setting.
By setting "0 (RL)", "1 (RM)", "2 (RH)" in any of Pr.178 to Pr.189 (input terminal function assignment), you can assign the signals to
other terminals.
Multi-Speed Operation 
Connection Example
10
2
5
STF
RH
RM
RL
SD
Inverter
Multi-speed  
selection
Frequency setting 
potentiometer
Forward 
rotation
ON
ON
ON
Output frequency (Hz)
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
RH
Time
RM
RL