Frequency Setting By External Terminals; Multi-Speed Setting Operation (Pr. 4 To Pr. 6, Pr. 24 To Pr. 27, Pr. 232 To Pr. 239) - Mitsubishi Electric FR-A720-00030-NA Instruction Manual

Frequency setting by external terminals

4.11 Frequency setting by external terminals

Purpose
Make frequency setting by
combination of terminals
Perform jog operation
Added compensation for multi-speed
setting and remote setting
Infinitely variable speed setting by
terminals

4.11.1 Multi-speed setting operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)

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
Multi-speed setting (high
4
speed)
Multi-speed setting (middle
5
speed)
Multi-speed setting (low
6
speed)
24 Multi-speed setting (speed 4)
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)
The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.
(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.
(High speed)
RH
RM
RL
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), the signals can be assigned
to other terminals.
168
Multi-speed operation
Jog operation
Multi-speed input
compensation selection
Remote setting function
Name Initial Value
Speed 1
Speed 2
(Middle speed)
Speed 3
(Low speed)
Time
ON
ON
ON
Parameter that must be Set
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27,
Pr. 232 to Pr. 239
Setting Range
60Hz 0 to 400Hz
30Hz 0 to 400Hz
10Hz 0 to 400Hz
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
Forward
rotation
Multi-Speed Operation
Connection Example
Pr. 15, Pr. 16
Pr. 28
Pr. 59
Description
Set the frequency when RH turns ON.
Set the frequency when RM turns ON.
Set the frequency when RL turns ON.
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
Inverter
STF
RH 10
RM
2
RL
5
SD
Refer to Page
168
170
172
172