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The RST signal is enabled only after the protective circuit operates.
D
The system cannot be reset while the FWD , REV, or ORT signal is ON.
D
The RESET switch of the Digital Operator has the same function as the RST signal.
D
The system is reset on the rising edge of the RST signal. Therefore, turn the RST signal ON and then
D
OFF.
Faults take precedence in the sequence of the protective circuit. The following timing chart is an exam-
D
ple of resetting.
Overload protection (OL)
Fault indication AL-05
CHW (Winding Selection Signal)
J
Low speed winding will be selected when 6CN-14 is turned ON.
High speed winding will be selected when 6CN-14 is turned OFF.
The CHW signal is a reference signal for motor winding selection control.
D
The high-speed winding will be selected when the CHW signal is turned OFF. The low-speed winding
D
will be selected when the CHW signal is turned ON.
Winding selection is possible while the system is in operation.
D
When the CHW signal is turned ON for winding selection, the gate will be blocked until the actual
D
winding is switched over. If this status continues for the preset time, a winding selection fault (AL-20)
will result and the system will stop.
If the winding does not coincide with the CHW reference when the system is turned ON, the winding
D
will be switched so that is coincides with the reference.
ORT (Orientation Signal)
J
The ORT signal functions when 6CN-16 turns ON.
The ORT signal is a reference signal for electrical orientation.
D
When the ORT signal is turned ON, the load shaft will be promptly moved to the preset position.
D
Turn the ORT signal OFF after completing tool or workpiece replacement for positioning.
D
The system will not restart unless the ORT signal is turned OFF if an emergency stop is performed
D
during orientation.
Keep the ORT signal OFF when the system is turned ON, or otherwise the system will not operate.
D
Turn ON the ORT signal at least 15 ms after the EMG or RDY signal is turned ON. The ORT signal
D
will not be accepted if it is turned ON before the EMG or RDY signal is turned ON.
[EMG]
[RDY]
[ORT]
Use the motor encoder signal for positioning if the optional orientation card is not used.
D
Turn 6CN-16 OFF if the ORT signal is not used.
D
[FWD]
ON
[RST]
ON
ON
RUN
Fault signal
Protective circuit
in operation
ON
ON
ON
[CHW]
High speed
Low speed
Winding
Gate blocked (current interrupted)
ON
ON
ON
15 ms min.
4 -7
4.1 Sequence Input Signals
ON
Reset
4
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Table of Contents
Troubleshooting
