Chw (winding selection signal), Ort (orientation signal) – Yaskawa Varispeed 626M5 User Manual
Page 82
4.1 Sequence Input Signals
4 -7
D
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
OFF.
D
Faults take precedence in the sequence of the protective circuit. The following timing chart is an exam-
ple of resetting.
ON
ON
ON
ON
Overload protection (OL)
Fault indication AL-05
Fault signal
Protective circuit
in operation
Reset
[FWD]
[RST]
RUN
J
CHW (Winding Selection Signal)
Low speed winding will be selected when 6CN-14 is turned ON.
High speed winding will be selected when 6CN-14 is turned OFF.
D
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
will be selected when the CHW signal is turned ON.
D
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
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.
ON
ON
ON
Winding
High speed
Low speed
Gate blocked (current interrupted)
[CHW]
D
If the winding does not coincide with the CHW reference when the system is turned ON, the winding
will be switched so that is coincides with the reference.
J
ORT (Orientation Signal)
The ORT signal functions when 6CN-16 turns ON.
D
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
during orientation.
D
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
will not be accepted if it is turned ON before the EMG or RDY signal is turned ON.
15 ms min.
ON
[EMG]
ON
ON
[RDY]
[ORT]
D
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.
4