Mitsubishi Electric MELDAS C6 Interface Manual page 92

B con-
Signal name
tact
CONTROLLER READY
—
COMPLETE
[Function]
This signal indicates that the controller is ready for normal operation.
[Operation]
The signal turns ON when:
(1) The controller starts working successfully after it is turned ON or when no OFF-condition exists.
The signal turns OFF when:
(1) The controller is turned OFF.
(2) Trouble occurs with the controller (such as failure in the CPU, memory, etc.).
(3) "Servo alarm" which cannot be reset without turning OFF the power supply of the controller
occurs.
B con-
Signal name
tact
—
SERVO READY COMPLETE
[Function]
This signal indicates that the servo system is ready for normal operation. In other words, the servo
system (position control) is not working when the signal is OFF.
[Operation]
The signal turns ON when:
(1) The diagnosis on the servo system is completed successfully after the control unit is turned ON.
(2) "Servo alarm", if occurs, is reset. (Resetting may not be possible depending on the servo alarm
contents.)
(3) "Emergency stop" input is removed.
The signal turns OFF when:
(1) "Servo alarm" occurs.
(2) "Emergency stop" is input.
(3) The power supply of controller is turned OFF.
(4) Trouble occurs with the controller (such as failure in the CPU or memory, etc.).
(Note 1) This signal (SA) cannot be turned OFF only with the servo OFF (*SVFn) signal.
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
MA
Signal
abbreviation
SA
6-1-3
1st system 2nd system
X420 —
1st system 2nd system
X421 —
3rd system
—
3rd system
—