Mitsubishi Electric FR-A700 Series, Technical Manual

Page: 182 / 550

216
PARAMETER
2.4.3 Multi-speed operation [Pr. 4 to 6, 24 to 27, 232 to 239]
(common)
Can be used to change the preset speed in the parameter
with the contact terminals.
Each speed can be selected by merely turning ON or OFF
the contact signals (RH, RM, RL, REX signals).
Refer to page 48 for the detail of input signal combinations.
The priority of the frequency command by the external
signals is "Jog operation Multi-speed operation
Terminal 4 analog input Pulse train input Terminal 2
analog input".
Valid in the External operation mode [
Pr. 79 = 0, 2 ] or PU/
external combined operation mode [ Pr. 79 = 3, 4 ].
Multi-speed parameters can also be set in the PU or
External operation mode
.
(1) 3-speed setting [ Pr. 4 to 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.
In the initial setting, if two or three signals 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.
(2) Multi-speed setting for 4 or more speeds
[ Pr. 24 to 27, 232 to 239 ]
Frequency from 4 speed to 15 speed can be set
according to the combination of the RH, RM, RL and
REX signals. Set the running frequencies in [
Pr. 24 to
27, 232 to 239 ] (In the initial value setting, speed 4 to
speed 15 are unavailable).
For the terminal used for REX signal input, set 8 in
any of [
Pr. 178 to 189 input terminal function selection ]
to assign the function.
common
[ Pr. ] Name
Initial
Value
Setting Range Description
4 Multi-speed setting (high speed) 60Hz 0 to 400Hz Frequency when RH turns ON
5 Multi-speed setting (middle speed) 30Hz 0 to 400Hz Frequency when RM turns ON
6 Multi-speed setting (low speed) 10Hz 0 to 400Hz Frequency when RL turns ON
24 Multi-speed setting (speed 4) 9999 0 to 400Hz, 9999
Frequency 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) 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