Commercial Power Supply-Inverter Switch-Over Function (Pr. 135 To Pr. 139) - Mitsubishi Electric FR-A520-0.4K-NA Instruction Manual

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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
Factory Setting
Number
135 0
136 0.1 sec.
137 0.5 sec.
138 0
139 9999
( 1 ) Wiring example
Sink logic, Pr. 185 = 7, Pr. 186 = 6, Pr. 192 = 17, Pr. 193 = 18, Pr. 194 = 19
NFB MC1
R 〈L
S 〈L
T 〈L
R1 〈L
S1 〈L
Inverter start
(forward rotation)
STF
Inverter-commercial
CS
power supply
MRS
switch-over
Operation interlock
External thermal relay OH
Reset
RES
SD
10
Frequency setting signal
2
5
Setting Range
0, 1
0 to 100.0 sec.
0 to 100.0 sec.
0,1
0 to 60.0Hz, 9999
MC2
×
External
Inverter
MC3
thermal relay
〉
U
1
〉
V
IM
2
〉
W
3
〉
11
〉
21
SU
Signal set in Pr. 190 to Pr. 195
*1
MC
IPF
1
*2
*1 MC3
MC
OL DC24V
2
*1 MC2
MC
FU
*3 3
SE
IPF
OL
FU
SE
Pr. 11 "DC dynamic brake operation
Pr. 17 "MRS input selection"
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)
Remarks
9999: No automatic
switch-over
Note: This switch-over function is used in the external operation
R
mode. Always connect terminals R1, S1 (L
different power supply (power supply different from the one
for MC1) to ensure proper operation.
MC2 and MC3 must be mechanically interlocked.
R
*1. Note the sequence output terminal capacities. The terminals used
depend on the Pr. 190 to Pr. 194 settings.
Output Terminal Capacity
Inverter's open collector outputs
(IPF, OL, FU)
FR-A5AR (option output)
*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.
DC
24V
131
PARAMETERS
Related parameters
time"
, L ) to a
11 21
Permissible Output Terminal Load
24VDC 0.1A
230VAC 0.3A
30VDC 0.3A