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Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual Page 200

Fr-e700 series.
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Selection of operation mode and operation location
(8)
Switch-over mode (setting "6")
While continuing operation, you can switch between the PU operation, external operation and network operation (when
RS-485 communication with the PU connector or communication option is used).
Operation Mode Switching
External operation
PU operation
External operation
NET operation
PU operation
External operation
PU operation
NET operation
NET operation
External operation
NET operation
PU operation
(9)
PU operation interlock (setting "7")
The PU operation interlock function is designed to forcibly change the operation mode to the External operation mode
when the PU operation interlock signal (X12) input turns OFF.
This function prevents the inverter from being inoperative by the external command if the mode is accidentally left
unswitched from PU operation mode.
Set "7" (PU operation interlock) in Pr. 79.
For the terminal used for X12 signal (PU operation interlock signal) input, set "12" to any of Pr. 178 to Pr. 184 (input terminal
function selection) to assign the function. (Refer to page 139 for Pr.178 to Pr.184.)
When the X12 signal is not assigned, function of the MRS signal switches from MRS (output stop) to PU operation
interlock signal.
X12 (MRS)
Signal
Operation mode (External, PU, NET) switching
ON
enabled
Output stop during External operation
Forcibly switched to External operation mode
External operation allowed
OFF
Switching between the PU and NET operation mode
is enabled
<
Function/operation changed by switching ON-OFF the X12 (MRS) signal
Operating Condition
Operation
Status
mode
During
PU/NET
stop
Running
During
stop
External
Running
∗1
The operation mode switches to the External operation mode independently of whether the start signal (STF, STR) is ON or OFF. Therefore, the
motor is run in External operation mode when the X12 (MRS) signal is turned OFF with either of STF and STR ON.
∗2
At fault occurrence, pressing
200
Select the PU operation mode with the operation panel or parameter unit.
Rotation direction is the same as that of External operation.
The frequency set with the potentiometer (frequency command) or like is used unchanged. (Note
that the setting will disappear when power is switched OFF or the inverter is reset.)
Send the mode change command to the Network operation mode through communication.
Rotation direction is the same as that of External operation.
The value set with the setting potentiometer (frequency command) or like is used unchanged.
(Note that the setting will disappear when power is switched OFF or the inverter is reset.)
Press the external operation key of the operation panel or parameter unit.
The rotation direction is determined by the input signal of the External operation.
The set frequency is determined by the external frequency command signal.
Send the mode change command to the Network operation mode through communication.
Rotation direction and set frequency are the same as those of PU operation.
Command to change to External mode is transmitted by communication.
Rotation direction is determined by the external operation input signal.
The set frequency is determined by the external frequency command signal.
Select the PU operation mode with the operation panel or parameter unit.
The rotation direction and frequency command in the Network operation mode are used
unchanged.
Operation mode
Operation
X12 (MRS) Signal
Mode
OFF ∗1
ON
External ∗2
OFF ∗1
ON
OFF
ON
ON
OFF
External ∗2
OFF
ON
ON
OFF
of the operation panel resets the inverter.
Switching Operation/Operating Status
Function/Operation
Parameter write enabled (depending on Pr. 77 Parameter
write selection and each parameter write conditions (Refer
to page 62 for the parameter list))
Parameter write disabled with exception of Pr. 79
Operating Status
If external operation frequency setting and
start
signal
are
entered,
performed in that status.
During stop
During operation
output stop
Output stop
operation
Parameter write
>
Switching to PU,
NET Operation
Mode
Disallowed
operation
is
Disallowed
Allowed
Disallowed
Disallowed
Disallowed

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