4.5 Connection of Limit and Near Home Switches
4-25
4.5.4 Settings of FP7 MC Unit
To enable the limit function, the axis parameter "Limit input" in CMI should be set to be
enabled. Also, the input logic should be confirmed on CMI.
Settings related to limit switch
Parameter name Default Description
Limit switch N: Disabled
When using the limit switch function or the home return function
using limit switches, select "A: Enabled".
N: Disabled, A: Enabled
Limit switch
connection
S: Standard
When the arrangement of the connected "limit + switch" and "limit -
switch " is opposite to the input state loaded to FP7 MC Unit, select
"R: Reverse connection".
S: Standard, R: Reverse connection
Limit + switch logic
1: Normal Close
(B contact)
Select the input logic of the limit switches.
0: Normal Open (A contact), 1: Normal Close (B contact)
Limit - switch logic
• In the system using FP7 MC Unit, limit switches are connected to the
general-purpose inputs (SI-MON3 and SI-MON4) of Servo Amplifier A6B/A5B.
When the "Limit switch" is set to "Enabled" in the above parameter, the
state of the general-purpose inputs (SI-MON3 and SI-MON4) of Servo
Amplifier A6B/A5B is reflected as the limit inputs of FP7 MC Unit.
• It is recommended to select "Normal Open (A contact)" for "Limit + Switch
logic" and "Limit - Switch logic". The input logic selected on Servo
Amplifier A6BA5B is reflected as is.
• For details of the axis parameter settings, refer to "5.2 Axis Parameter
Settings".
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