Mitsubishi Electric 800 Series Instruction Manual page 227

5.6.7 Operation by multi-speed setting
Use these parameters to change among pre-set operation speeds with the terminals. The speeds are pre-set with parameters.
Any speed can be selected by simply turning ON/OFF the contact signals (RH, RM, RL, and REX signals).
Pr.
28 Multi-speed input compensation
D300 selection
4 Multi-speed setting (high speed)
D301
5 Multi-speed setting (middle speed)
D302
6 Multi-speed setting (low speed)
D303
24 Multi-speed setting (speed 4)
D304
25 Multi-speed setting (speed 5)
D305
26 Multi-speed setting (speed 6)
D306
27 Multi-speed setting (speed 7)
D307
232 Multi-speed setting (speed 8)
D308
233 Multi-speed setting (speed 9)
D309
234 Multi-speed setting (speed 10)
D310
235 Multi-speed setting (speed 11)
D311
236 Multi-speed setting (speed 12)
D312
237 Multi-speed setting (speed 13)
D313
238 Multi-speed setting (speed 14)
D314
239 Multi-speed setting (speed 15)
D315
 Multi-speed setting (Pr.4 to Pr.6)
• The inverter operates at frequencies set in Pr.4 when RH signal is ON, Pr.5 when RM signal is ON and Pr.6 when RL
signal is ON.
Forward rotation start
Reverse rotation start
High speed
Middle speed
Switch
NOTE
• In the initial setting, when two or more of multi-speed settings are simultaneously selected, priority 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.
226
5. PARAMETERS
5.6 (D) Operation command and frequency command
Name
Inverter
STF
STR
RH
RM
Low speed RL
SD
Initial value Setting range
0 0
1
60 Hz 0 to 590 Hz
30 Hz 0 to 590 Hz
10 Hz 0 to 590 Hz
9999 0 to 590 Hz, 9999 Frequency from 4th speed to 15th speed
Description
Without compensation
With compensation
Sets the frequency when RH is ON.
Sets the frequency when RM is ON.
Sets the frequency when RL is ON.
can be set according to the combination of
the RH, RM, RL and REX signals.
9999: Not selected
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
Time
ON
RH
ON
RM
ON
RL