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Commercial Power Supply-inverter Switchover Function (pr. 135 To Pr. 139) - Mitsubishi Electric FR-A500 Instruction Manual

Transistorized inverter.
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4.2.43 Commercial power supply-inverter switchover function
(Pr. 135 to Pr. 139)
Pr. 135 "commercial power supply-inverter
switchover sequence output terminal selection"
Pr. 136 "MC switchover interlock time"
Pr. 137 "start waiting time"
Pr. 138 "commercial power supply-inverter
switchover selection at alarm occurrence"
Pr. 139 "automatic inverter-commercial power
supply switchover frequency"
The inverter contains a complicated sequence circuit for commercial power supply-inverter operation
switchover. Hence, the magnetic contactors for switchover can be interlocked easily by merely entering the
start, stop or automatic switchover select signal.
Parameter
Factory
Number
Setting
135
136
137
138
139
(1) Wiring example
Sink logic, Pr. 185 = 7, Pr. 186 = 6, Pr. 192 = 17, Pr. 193 = 18, Pr. 194 = 19
MCCB
MC1
Inverter start
(forward rotation)
Inverter-commercial
power supply
switch-over
Operation interlock
External thermal relay
Reset
Frequency setting signal
Setting Range
0
0, 1
1 s
0 to 100.0 s
0.5 s
0 to 100.0 s
0
0,1
9999
0 to 60.0Hz, 9999
MC2
External
Inverter
MC3
thermal relay
R
<
L
>
U
1
S
L
V
<
>
2
T
L
W
<
>
3
R1 L
<
>
11
S1 L
<
>
21
SU
Signal set in Pr. 190 to Pr. 195
*1
MC
STF
IPF
1
CS
*1
MC3
MC
OL
MRS
2
*1
MC2
MC
FU
*3
3
OH
SE
RES
SD
10
2
IPF
5
RA
OL
FU
SE
Pr. 11 "DC injection brake operation
Pr. 57 "restart coasting time"
Pr. 58 "restart cushion time"
Pr. 180 to Pr. 186
Pr. 190 to Pr. 195
Remarks
9999: No automatic
switchover
Note: This switchover function is used in
external operation mode. Always connect
terminals R1, S1 <L
power supply (power supply different from
the one for MC1) to ensure proper
operation.
IM
MC2 and MC3 must be mechanically
interlocked.
*1. Note the sequence output terminal
capacities. The terminals used depend on
*2
the Pr. 190 to Pr. 195 settings.
24VDC
Output Terminal Capacity
Inverter's open collector
outputs (IPF, OL, FU)
FR-A5AR (option output)
24VDC
*2. When connecting an AC power supply,
connect the FR-A5AR option and use the
contact output. When connecting a DC
power supply, install the following protective
diode.
*3. The terminals used depend on the Pr. 180
to Pr. 186 settings.
144
PARAMETERS
Related parameters
time"
(input terminal function selection)
(output terminal function selection)
, L
11
21
Permissible Output
Terminal Load
24VDC 0.1A
230VAC 0.3A
30VDC 0.3A
> to a different

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