Mitsubishi Electric FR-V500 Instruction Manual page 128

(2) PU operation interlock
The PU operation interlock function is designed to forcibly change the operation mode to external operation mode
when the X12 signal 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.
1) Preparation
• Set "7" (PU operation interlock) in Pr. 79.
• Using any of Pr. 180 to Pr. 183 and Pr. 187 (input terminal function selection), allocate the terminal used to
input the X12 signal. (Refer to page 150)
REMARKS
Changing the terminal assignment using Pr. 180 to Pr. 183, Pr. 187 (input terminal function selection) may affect the other
functions. Check the functions of the corresponding terminals before making setting.
2) Function
X12 Signal
Output stop during external operation.
ON Operation mode can be switched to the PU operation mode.
PU operation allowed.
Forcibly switched to the external operation mode.
OFF External operation allowed.
Switching to the PU operation mode inhibited.
<Function/operation changed by switching on-off the X12 signal>
Operating
Condition
Operation
Status
mode
During stop
PU
During
operation
During stop
External
During
operation
REMARKS
• If the X12 signal is on, the operation mode cannot be switched to the PU operation mode when the start signal (STF, STR)
is on.
* 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 the external operation mode when the X12 signal is turned off with either of STF and STR on.
• When the X12 signal is off during external operation mode, the operation mode cannot be changed to the PU operation
mode. (Change to the PU operation mode after switching the X12 signal on)
(3) Operation mode external signal switching function
1) Preparation
Set "8" (operation mode switchover using the external signal with signal) in Pr. 79.
Using any of Pr. 180 to Pr. 183 and Pr. 187 (input terminal function selection), allocate the terminal used to input
the X16 signal.
REMARKS
Changing the terminal assignment using Pr. 180 to Pr. 183, Pr. 187 (input terminal function selection) may affect the other
functions. Check the functions of the corresponding terminals before making setting. Refer to page 150 for details.
2) Function
This switching is enabled only during an inverter stop and cannot be achieved during operation.
X16 Signal
ON External operation mode (cannot be changed to PU operation mode)
OFF PU operation mode (cannot be changed to external operation mode)
Related parameters
Pr. 75 "PU stop selection" (Refer to page 115.)
Function/Operation
X12 Operation
Signal Mode
ON → OFF
(*)
PU → External
ON → OFF
(*)
OFF → ON
ON → OFF
External
OFF → ON
ON → OFF
Operation Mode
Operation selection function 2 (Pr. 65 to Pr. 79)
Operating Status
During stop
If external operation speed setting and start signal are
entered, operation is performed in that status.
During stop
During operation → output stop
Output stop → operation
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