Mitsubishi Electric FR-A700 Technical Manual page 545

4.11 Multi-speed operation application example
A700 F700 E700
E700)
Multi-speed operation of 15-speed is available. The following application gives an example of operation requires more multi-
speed operation.
(1) 18 speed operation
Speed
Lowest speed
JOG
Speed 3 (low speed)
Speed 2 (middle speed)
Speed 1 (high speed)
Speed 4
Speed 5
Speed 6
Speed 7
Speed 8
Speed 9
Speed 10
Speed 11
Speed 12
Speed 13
Speed 14
Speed 15
Highest speed
(2) To add an external potentiometer to further increase the number of speeds
*1 When the relay R turns ON, operation is performed at the frequency set by the frequency setting potentiometer (external
potentiometer). In this case, the relays J, HH, EX, H, M and L should all be OFF.
MCCB MC
Power
supply
EX
H
M
L
J
HH
J HH EX
OFF OFF OFF
ON —
OFF — OFF
OFF — OFF
OFF — OFF
OFF — OFF
OFF — OFF
OFF — OFF
OFF — OFF
OFF — ON
OFF — ON
OFF — ON
OFF — ON
OFF — ON
OFF — ON
OFF — ON
OFF — ON
OFF ON OFF
Frequency setting
potentiometer
2W1kΩ
Inverter
R U
S V
W
T
REX
RH
RM
Start
STF (STR)
RL
JOG SD
SD
10
2
Relay Contacts
H M
OFF OFF
— — —
OFF OFF
OFF ON
ON OFF
OFF ON
ON OFF
ON ON
ON ON
OFF OFF
OFF OFF
OFF ON
OFF ON
ON OFF
ON OFF
ON ON
ON ON
OFF OFF
R
*
10
HH
2
Inverter
5
579
PRACTICAL CIRCUITS
(A700, F700,
Motor
IM
Setting
L
OFF [Pr. 2]
— [Pr. 15, 16]
ON [Pr. 6]
OFF [Pr. 5]
OFF [Pr. 4]
ON [Pr. 24]
ON [Pr. 25]
OFF [Pr. 26]
ON [Pr. 27]
OFF [Pr. 232]
ON [Pr. 233]
OFF [Pr. 234]
ON [Pr. 235]
OFF [Pr. 236]
ON [Pr. 237]
OFF [Pr. 238]
ON [Pr. 239]
OFF [Pr. 125]
4