Mitsubishi Electric F700 Instruction Manual page 82

Parameter
Name
134
PID differential time
Output interruption
575
detection time
Output interruption
576
detection level
Output interruption
577
cancel level
Electronic bypass
135
sequence selection
MC switchover
136
interlock time
137
Start waiting time
Bypass selection at
138
an alarm
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.
Incre Initial
Range
ments Value
Time required for only the differential (D)
action to provide the same manipulated
0.01 to variable as that for the proportional (P)
10.00s action. As the differential time increases,
0.01s 9999
greater response is made to a deviation
change.
9999 No differential control.
If the output frequency after PID operation
remains lower than the Pr. 576 setting for
0 to 3600s
longer than the time set in Pr. 575, the
0.1s 1s
inverter stops operation.
9999 Without output interruption function
Set the frequency at which the output
0.01Hz 0Hz 0 to 400Hz
interruption processing is performed.
Set the level (Pr.577 minus 1000%) to
0.1% 1000% 900 to 1100% release the PID output interruption
function.
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 (Not
1
switched when an external thermal error
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 to Pr.159) after operation is
switched from inverter operation to
bypass operation, the inverter
0 to 10Hz
automatically 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
the inverter operation and the motor
decelerates to stop.
Parameter list
Param
eter
copy
Description
× : disabled
All
Param
param
eter
eter
clear
clear
: enabled
4
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