Mitsubishi Electric FR-S520E Series Instruction Manual page 132

Operation selection function
REMARKS
•If the MRS signal is on, the operation mode cannot be switched to the PU operation mode
when the start signal (STF, STR) is on.
*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 the external operation mode when the MRS signal is
switched off with either of STF and STR on.
*2. Switching the MRS signal on and rewriting the Pr. 79 value to other than "7" in the PU
operation mode causes the MRS signal to act as the ordinary MRS function (output stop).
Also as soon as "7" is set in Pr. 79, the signal acts as the PU interlock signal.
(2) Operation mode switching by external signal
1) Preparation
Set "8" (switching to other than external operation mode) in Pr. 79.
Use any of Pr. 60 to Pr. 63 (input terminal function selection) to set the terminal
used for X16 signal input.
CAUTION
Changing the terminal assignment using Pr. 60 to Pr. 63 (input terminal
function selection) may affect the other functions.
Check the functions of the corresponding terminals before making settings.
For details refer to page 108.
2) Function
This switching is enabled during an inverter stop only and cannot be achieved
during operation.
X16 Signal
ON
OFF
to
External operation mode (cannot be changed to PU operation mode)
PU operation mode (cannot be changed to external operation mode)
Refer to to
Operation Mode
(page 75).
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