Mitsubishi Electric FR-A820-00046 Instruction Manual page 469

Parameters
NOTES In the initial setting, when two or more of multi-speed settings are simultaneously selected, prior-
ity is given to the set frequency of the lower signal.
For example, when RH and RM signals turn ON, RM signal (Pr. 5) has a higher priority.
The RH, RM and RL signals are assigned to the terminals RH, RM and RL in the initial status.
Set "0 (RL)", "1 (RM)", and "2 (RH)" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the signals to other terminals.
Multi-speed setting for 4th speed or more (Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)
● The frequency from 4th speed to 15th speed can be set by the combination of the RH, RM, RL, and
REX signals. Set the running frequencies in Pr. 24 to Pr. 27, Pr. 232 to Pr. 239. (In the initial status,
4th to 15th speeds are invalid.)
● For the terminal used for REX signal input, set "8" in any of Pr. 178 to Pr. 189 (input terminal function
selection) to assign the function.
Fig. 5-119:
Fig. 5-120:
When RH, RM and RL is set to OFF and REX is set to ON when "9999" is set to Pr. 232 "Multi-speed
setting (speed 8)", the inverter runs by the frequency set to Pr. 6.
FR-A800
Forward rotation
Connection example
Speed 5
Speed 6
Speed 4
Speed 7
ON ON ON
RH
ON
ON ON
RM
ON ON
RL
REX
Multi-speed selection by external terminals
(D) Operation command and frequency command
Inverter
STF
REX 10
Frequency setting
RH
2
potentiometer
RM
5
RL
SD
Speed 10
Speed 11
Speed 12
Speed 9
Speed 13
Speed 8
Speed 14
ON ON ON ON
ON ON ON
ON
ON ON ON
ON
ON ON ON ON ON ON
Speed 15
Time
ON
ON
I002577E
I002578E
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