Mitsubishi Electric FR-A701 Instrucion Manual page 124

Parameter
Name
Electronic bypass
135
sequence selection
MC switchover
136
interlock time
137
Start waiting time
Bypass selection at
138
a fault
Automatic
switchover
139
frequency from
inverter to bypass
operation
Automatic
switchover
frequency range
159
from bypass to
inverter operation
140 143
to Refer to Pr. 29.
—
144
Refer to Pr. 37.
PU display
145
language selection
148,149
Refer to Pr. 22.
—
Incre Initial
Range
ments Value
0 Without electronic bypass sequence
1 0
1 With electronic bypass sequence
Set the operation interlock time of MC2
0.1s 1s 0 to 100s
and MC3.
Set the time slightly longer (0.3 to 0.5s or
0.1s 0.5s 0 to 100s so) than the time from when the ON signal
enters MC3 until it actually turns on.
Inverter output is stopped (motor coast) at
0
inverter fault.
Operation is automatically switched to
1 0
bypass operation at inverter fault
1 (Not switched when an external thermal
relay operation (E.OHT) or CPU fault
(E.CPU) occurs)
Set the frequency to switch inverter
0 to 60Hz
operation to bypass operation.
0.01Hz 9999
9999 Without automatic switchover
Valid during automatic switchover
operation (Pr. 139 ≠ 9999)
When the frequency command decreases
below (Pr. 139 - Pr. 159) after operation is
switched from inverter operation to bypass
operation, the inverter automatically
0 to 10Hz
switches operation to inverter operation
and operates at the frequency of frequency
command.
When the inverter start command (STF/
0.01Hz 9999
STR) is turned off, operation is switched to
inverter operation also.
Valid during automatic switchover
operation (Pr. 139 ≠ 9999)
When the inverter start command (STF/
STR) is turned off after operation is
9999
switched from inverter operation to bypass
operation, operation is switched to inverter
operation and the motor decelerates to
stop.
0 Japanese
1 English
2 Germany
3 French
1 0
4 Spanish
5 Italian
6 Swedish
7 Finnish
Parameter List
Para
meter
copy
Description
All
Param
param
eter
eter
clear
clear
: enabled
× : disabled
× ×
4
117