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Function assignment of external terminal and control
4
PARAMETERS
*1 When Pr. 59 Remote function selection = "1 or 2", the functions of the RL, RM and RH signals change as listed above.
*2 When
Pr. 270 Stop-on contact/load torque high-speed frequency control selection
= "1, 3, 11 or 13", the functions of the RL and RM signals change as listed
above.
*3 The OH signal turns ON when the relay contact "opens".
*4 The FR-A7AX (16-bit digital input) is needed to externally input a stop position under orientation control.
*5 Servo ON is valid during position control under vector control operation.
*6 Available only when the plug-in option is mounted. For details, refer to the instruction manuals of each plug-in options.
(2) Response time of each signal
⋅ The response time of the X10 signal is within 2ms. However, when the X10 signal is not assigned at the Pr. 30
Regenerative function selection setting of "2" (FR-HC, MT-HC/FR-CV connection), the response time of the MRS
signal is within 2ms.
Pr. 17 MRS input selection is invalid.
69 CLR Simple position droop pulse clear (for FR-A7AP/FR-A7AL) *6 Pr. 291, Pr. 419 to Pr. 430, Pr. 464 137
70 X70 DC feeding operation permission
Pr. 30, Pr. 70
207
71 X71 DC feeding cancel
Pr. 30, Pr. 70
207
74 X74 Magnetic flux decay output shutoff signal ⎯ 238
76 X76
Proximity dog (assigned to JOG terminal (Pr. 185) only) (for FR-
A7NS)
*6
⎯⎯
83 X83 0V calibration request (for FR-A7AD)
*6 ⎯⎯
9999 ⎯ No function ⎯⎯
REMARKS
⋅ Same function can be assigned to two or more terminals. In this case, the logic of terminal input is OR.
⋅ The priorities of the speed commands are in order of JOG > multi-speed setting (RH, RM, RL, REX) > PID (X14).
⋅ When the X10 signal (FR-HC, MT-HC, FR-CV connection - inverter operation enable signal) is not set or when the PU
operation external interlock (X12) signal is not assigned at the Pr. 79 Operation mode selection setting of "7", the MRS signal
shares this function.
⋅ Same signal is used to assign multi-speeds (7 speeds) and remote setting. They cannot be set individually.
(Same signal is used since multi-speed (7 speeds) setting and remote setting are not used to set speed at the same time.)
⋅ When V/F switching (X18) signal and load pattern selection forward/reverse rotation boost (X17) signal are not assigned, the
RT signal shares this function. (Pr. 81 Number of motor poles = "12, 14, 16, 18, 20")
In this case, V/F control is controlled by the second function.
CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Also
check that wiring is correct, since the terminal name and the signal function became different. Set parameters after confirming
the function of each terminal.
Pr. 30
Setting
MRS
Assignment
X10
Assignment
Response Time
Pr. 17
MRS X10
2
× Within 2ms ⎯ Invalid
× ⎯ Within 2ms ⎯
Within 20ms Within 2ms Valid
Other than 2
× Within 20ms ⎯ Valid
× ⎯⎯⎯
Within 20ms ⎯ Valid
Setting
Signal
Name
Function Related Parameters
Refer to
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