Mitsubishi Electric FR-D720-0.2K-G, Instruction Manual

Page: 92 / 302

89
Speed setting by external terminals
4
P
A
RAMETE
R
S
4.7 Speed setting by external terminals
4.7.1 Operation by multi-speed 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
.

These parameters can be set when
Pr. 160 Extended function display selection
= "0".
(Refer to page 161.)

The value left of the slash is for the 2.2K drive unit or lower. The one right of the slash is for the 3.7K drive unit.

If a value exceeding the upper speed limit of the motor is set, the actual operation will be limited at the maximum rotation speed. The setting range is for the
S-PM motor. The maximum setting value differs depending on the number of poles of the applied motor.
Purpose Parameter that should be Set Refer to Page
Make speed setting by combination
of terminals
Multi-speed operation
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27,
Pr. 232 to Pr. 239
89
Perform Jog operation Jog operation Pr. 15, Pr. 16 91
Infinitely variable speed setting by
terminals
Remote setting function Pr. 59
93
Can be used to change the preset speed in the parameter with the contact signals.
Any speed can be selected by merely 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)
3000r/min
0 to 12000r/min /
0 to 8000r/min 
Speed when RH turns ON
5 Multi-speed setting (middle speed)
1500r/min
0 to 12000r/min /
0 to 8000r/min

Speed when RM turns ON
6 Multi-speed setting (low speed)
300r/min
0 to 12000r/min /
0 to 8000r/min

Speed when RL turns ON
24


Multi-speed setting (speed 4)
9999
0 to 12000r/min /
0 to 8000r/min  ,
9999
Speed from 4 speed to 15 speed can
be set according to the combination
of the RH, RM, RL and REX signals.
9999: not selected
25


Multi-speed setting (speed 5)
26


Multi-speed setting (speed 6)
27


Multi-speed setting (speed 7)
232

Multi-speed setting (speed 8)
233


Multi-speed setting (speed 9)
234


Multi-speed setting (speed 10)
235


Multi-speed setting (speed 11)
236


Multi-speed setting (speed 12)
237


Multi-speed setting (speed 13)
238


Multi-speed setting (speed 14)
239


Multi-speed setting (speed 15)
(1) Multi-speed setting for 3 speeds (Pr. 4 to Pr. 6)
 The drive unit operates at speeds set in Pr. 4 when RH signal is ON, Pr. 5 when RM signal is ON and Pr. 6 when RL signal
is ON.
ON
ON
ON
Rotation speed
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
RH
RM
RL
Time
(r/min)
10
2
5
STF
RH
RM
RL
SD
Drive unit
Multi-speed selection
Speed setting potentiometer
Forward
rotation
Multi-Speed Operation
Connection Example
REMARKS

In the initial setting, if two or three of multi-speed settings are simultaneously selected, priority is given to the set speed 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. 182 (input terminal function selection)
, you can assign the signals to other terminals.