Mitsubishi Electric FR-E700 Instruction Manual page 274
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Function assignment of external terminals
MRS signal logic inversion
When Pr. 17 is set to "2", the MRS signal (output stop) can be changed to the normally closed (NC con-
tact) input specification. When the MRS signal turns on (opens), the inverter shuts off the output.
Pr. 17 = 0
Assign a different action for each MRS signal input from communication and external terminal
(Pr. 17 = 4)
When Pr. 17 is set to "4", the MRS signal from external terminal (output stop) can be changed to the
normally closed (NC contact) input, and the MRS signal from communication can be changed to the
normally open (NO contact) input.
This function is useful to perform operation by communication with MRS signal from external termi-
nal remained on.
External MRS
Tab. 6-28: Activating the output shutoff by external signal or communication
NOTES
For MRS signal, assign the function by setting "24" to any of Pr. 178 to Pr. 184 "Input terminal func-
tion selection".
When using an external terminal to input the MRS signal, the MRS signal shuts off the output in
any of the operation modes.
Changing the terminal assignment using Pr. 178 to Pr. 184 "Input terminal function selection" may
affect the other functions. Make setting after confirming the function of each terminal.
6 - 120
Pr. 17 = 2
Communication MRS
OFF
OFF
OFF
ON
ON
OFF
ON
ON
Fig. 6-52:
Connection of the MRS signal in source logic
0
Operation enabled
Output shutoff
Output shutoff
Output shutoff
Output shutoff
Output shutoff
Output shutoff
Operation enabled
Parameter
Pr. 17
2
4
Output shutoff
Output shutoff
Operation enabled
Output shutoff
I000011C
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