37
1
S
PECIFI
C
A
T
IONS
SPECIFICATIONS
1.4.3
Switching the inverter output MC ON/OFF (U, V, W)
(common
)
Switch the magnetic contactor between the inverter and
motor only when both the inverter and motor are at a stop.
When the magnetic contactor is turned ON while the
inverter is operating, overcurrent protection of the inverter
and such will activate. When an MC is provided to switch to
a commercial power supply, for example, it is
recommended to use bypass-inverter switchover function
[
Pr. 135 to Pr. 139
] (refer to page 416).
*1
MC switch-ON might become available by selecting an appropriate inverter capacity. (For example, select an inverter capacity
considering the start current of the motor. Refer to page 476.)
*2
Because overcurrent protection and electronic thermal protection may occur at an inverter start, use of automatic restart after
instantaneous power failure/flying start (refer to page 367) is recommended.
(2) When inverter output MC switch-OFF
1.4.4
Input signal (STF, STR, RL, RM, RH, RT, AU, JOG, CS, MRS, STOP, RES)
(common
)
(1) Input terminal function assignment
(4) If the MC in the main circuit power is switched OFF, the
fault output signal is not switched ON. When the MC is
OFF, the operation panel and parameter unit (FR-
DU07, FR-PU07) can be operated. (The motor cannot
be run)
(5) Capacity (VA) of separate power supply
The following power capacity is necessary when
separate power is supplied from R1/L11 and S1/L21.
FR-A720-11K or less, FR-A740-15K or less…60VA or more
FR-A720-15K or more, FR-A740-18.5K or more…80VA or
more
FR-F720-15K or less, FR-F740-18.5K or less…60VA or more
FR-F720-18.5K or more, FR-F740-22K or more…80VA or
more
common
(1) When inverter output MC switch-ON
Motor State before
Power on
Motor Running (Coasting)
Motor at Stop
Inverter State
Inverter operating
MC may not be switched ON
MC may not be switched ON
Inverter at stop
MC may not be switched ON
MC may be switched ON
common
Motor State before
Power on
Motor Running
Motor Running
(Coasting)
Motor at Stop
Inverter State
Inverter operating
MC may be switched OFF
(The motor coasts to a stop)
—
—
Inverter at stop
—
MC may be switched OFF
MC may be switched OFF
Use these parameters to select/change the input terminal functions.
common
common
common
1)
2) 3)
[Pr.]
Name
Initial
Value
[Pr.]
Name
Initial
Value
[Pr.]
Name
Initial
Value
178
STF terminal function
selection
60
178
STF terminal function
selection
60
178
STF terminal function
selection
60
179
STR terminal function
selection
61
179
STR terminal function
selection
61
179
STR terminal function
selection
61
180
RL terminal function
selection
0
180
RL terminal function
selection
0
180
RL terminal function
selection
0
181
RM terminal function
selection
1
181
RM terminal function
selection
1
181
RM terminal function
selection
1
182
RH terminal function
selection
2
182
RH terminal function
selection
2
182
RH terminal function
selection
2
183
RT terminal function
selection
3
183
MRS terminal function
selection
24
184
AU terminal function
selection
4
184
RES terminal function
selection
62
185
JOG terminal function
selection
5
186
CS terminal function
selection
6
187
MRS terminal function
selection
24
188
STOP terminal function
selection
25
189
RES terminal function
selection
62
A700
F700
E700
D700
Summary of Contents for FR-A700 Series
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Page 440: ...474 PARAMETER MEMO ...
Page 522: ...556 SELECTION MEMO ...