Mitsubishi Electric 800 Series Instruction Manual page 348

 Assigning a different action for each MRS signal input via
communication and external terminal (Pr.17 = "4")
• When Pr.17 = "4", the MRS signal from an external terminal can be set as the normally closed (NC contact) input, and the
MRS signal from communication as the normally open (NO contact) input. This function is useful to perform operation by
communication with MRS signal from external terminal remained ON.
External MRS Communication MRS
OFF OFF
OFF ON
ON OFF
ON ON
NOTE
• The MRS signal is assigned to the terminal MRS in the initial status. By setting "24" in either Pr.178 to Pr.189 (Input
terminal function selection), the RT signal can be assigned to the other terminal.
• When using an external terminal to input the MRS signal, the MRS signal shuts off the output in any of the operation modes.
• MRS signal is valid from either of communication or external, but when the MRS signals is to be used as Inverter run enable
signal (X10), it is required to input from external.
• When the terminal assignment is changed using Pr.178 to Pr.189 (Input terminal function selection), the terminal name
will be different, which may result in an error of wiring, or affect other functions. Set parameters after confirming the function
of each terminal.
Parameters referred to
Pr.178 to Pr.189 (Input terminal function selection)
0
Operation enabled Output shutoff
Output shutoff Output shutoff
Output shutoff Output shutoff
Output shutoff Operation enabled
page 343
5.9 (T) Multi-Function Input Terminal Parameters
Pr.17 setting
2
Output shutoff
Output shutoff
Operation enabled
Output shutoff
5. PARAMETERS
3
4
4
5
5
5
6
7
8
9
10
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