Mitsubishi Electric Freqrol-A100 Instruction Manual page 119

Pr. 79
-
Pr. 108
To switch between commercial
power supply operation and inverter
operation
Commercial
M
power supply
operation
operation
The programmed operation function allows 10 types of opera-
tion starting time of day, direction of rotation and running fre-
quency to be set individually for each of the selected three
groups. This function allows the inverter to be automatically run
in the preset operation schedule and operation pattern. If a
power failure occurs, operation can be continued without cor-
rupting the set schedule by installing the FR-EPD automatic
control compatible unit. This unit contains
a
backup battery.
When the PU operation interlock signal is switched off, the PU
operation interlock function forcibly switches the operation
mode to the external operation mode. This function prevents the
inverter from not starting operation under the external command
if the mode is left unswitched from the PU operation mode.
Pr. 107 "Commercial power supply switching sequence
0
output terminal selection"
Pr. 108 "MC switching interlock time"
Pr. 109 "Restart waiting time (MC3 ON time)"
Pr. 110 "Commercial power supply switching selection
at alarm occurrence"
Pr.111 "Automatic inverter operation-commercial power
supply operation switching frequency"
Alows the inverter to execute the magnetic contactor operation
sequence for switching between commercial power supply op-
eration and inverter operation. (For the adjustment procedure,
see page 134.)
- 1
"Commercial power supply switching sequence
output terminal selection"
Allows the output terminals of the signals which control the mag-
netic contactors (MC1, MC2, MC3).
1
Output Terminals
1
Set
Value
I
o
lsequence is not output.
\
l P r . 1 0 8 1
"MC switching interlock time"
Sets the MC2 and MC3 operation interlock time. Setting range: 0
to 100 seconds
Sequence Output
-
,
ON
MC2
- 1
OFF
Interlock time
OFF
MC3
I
ON
I
MCl
Signal
-
sequence is output to the FR-APE
(option) terminals.
Sequence is output to the inverter
terminals.
H
lnterlock time
-
MC2
Signal
1 A
IPF
MC3
signal
2A
OL
3 A
FU
A