Mitsubishi Electric FR-A720-0.4K Instruction Manual page 244

Signal
Setting
Name
69 CLR Simple position droop pulse clear (for FR-A7AP/FR-A7AL)
70 X70 DC feeding operation permission
71 X71 DC feeding cancel
74 X74 Magnetic flux decay output shutoff signal
Proximity dog (assigned to JOG terminal (Pr. 185) only) (for FR-
76 X76
A7NS)
*6
83 X83 0V calibration request (for FR-A7AD)
⎯
9999 No function
*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.
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.
(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.
Pr. 30 MRS
Setting Assignment
×
2
×
Other than 2
Function
*6
Response Time
X10
Assignment
MRS
×
Within 2ms
⎯
Within 20ms
×
Within 20ms
⎯
Within 20ms
Function assignment of external terminal and control
Related Parameters
Pr. 291, Pr. 419 to Pr. 430, Pr. 464
*6
Pr. 30, Pr. 70
Pr. 30, Pr. 70
⎯
⎯
⎯
⎯
Pr. 17
X10
⎯
Invalid
⎯
Within 2ms
Within 2ms Valid
⎯
Valid
⎯ ⎯
⎯
Valid
Refer to
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