Mitsubishi FR-A500 Series - Commercial Power Supply-Inverter Switch-Over Function (Pr. 135 to Pr. 139)

PARAMETERS
137
Pr. 11 "DC injection brake operation
time"
Pr. 57 "restart coasting time"
Pr. 58 "restart cushion time"
Pr. 180 to Pr. 186
(input terminal function selection)
Pr. 190 to Pr. 195
(output terminal function selection)
Related parameters
4.2.43 Commercial power supply-inverter switch-over function
(Pr. 135 to Pr. 139)
Pr. 135 "commercial power supply-inverter
switch-over sequence output terminal selection"
Pr. 136 "MC switch-over interlock time"
Pr. 137 "start waiting time"
Pr. 138 "commercial power supply-inverter
switch-over selection at alarm occurrence"
Pr. 139 "automatic inverter-commercial power
supply switch-over frequency"
The inverter contains a complicated sequence circuit for commercial power supply-inverter operation switch-
over. Hence, the magnetic contactors for switch-over can be interlocked easily by merely entering the start,
stop or automatic switch-over select signal.
Parameter
Number
Factory
Setting
Setting Range Remarks
135 0 0, 1
136 0.1 s 0 to 100.0 s
137 0.5 s 0 to 100.0 s
138 0 0,1
139 9999 0 to 60.0Hz, 9999
9999: No automatic
switch-over
(
1
)
Wiring example
Sink logic, Pr. 185 = 7, Pr. 186 = 6, Pr. 192 = 17, Pr. 193 = 18, Pr. 194 = 19
MC1
R 〈L
1
〉
S 〈L
2
〉
T 〈L
3
〉
STF
R1 〈L
11
〉
S1 〈L
21
〉
CS
MRS
RES
SD
10
2
5
U
V
W
MC2
×
MC3
IM
IPF
OL
SE
*1
*1
*1
*2
MC3
MC2
DC24V
MC
1
FU
NFB
MC
2
MC
3
*3
OH
SU
IPF
OL
FU
SE
DC
24V
External thermal relay
Reset
Frequency setting signal
External
thermal relay
Signal set in Pr. 190 to Pr. 195
*3. The terminals used depend on the Pr. 180 to Pr. 186 settings.
Note:
#
This switch-over function is used in the external operation
mode. Always connect terminals R1, S1 (L
11
, L
21
) to a
different power supply (power supply different from the one
for MC1) to ensure proper operation.
#
MC2 and MC3 must be mechanically interlocked.
*1. Note the sequence output terminal capacities. The terminals used
depend on the Pr. 190 to Pr. 194 settings.
Output Terminal Capacity Permissible Output Terminal Load
Inverter's open collector outputs
(IPF, OL, FU)
24VDC 0.1A
FR-A5AR (option output)
230VAC 0.3A
30VDC 0.3A
*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.
Inverter
Operation interlock
Inverter start
(forward rotation)
Inverter-commercial
power supply
switch-over
4