Inovance MD500

Appendix A
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135
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Table A-10 Indicators of MD38PGMD
Indicator State Indication
D1/D2/D3
Encoder
input signal
indicator
D1
D2 D3
ON or ash: The encoder has signal input.
D1
D2 D3
OFF: The encoder does not have signal input.
D6
Power supply
indicator
D6
ON: Normal.
D6
OFF: Power is not connected.
LED1
Encoder input
signal quality
indicator
LED1
OFF: Input signal is normal, speed is stable and there is no interference.
LED1
ON: Input signal is slightly instable, which occurs when motor accelerates/
decelerates or encoder signal input suffers slight interference.
LED1
Flash slowly: Input signal is moderately instable, which occurs when motor
accelerates/decelerates or encoder signal input suffers moderate interference.
LED1
Flash quickly: Input signal is seriously instable, which occurs when motor
accelerates/decelerates quickly or encoder signal input suffers severe interference.
LED2
Signal
processing
quality
indicator of
PG
card
LED2
OFF: Signal processing is normal, speed is stable and there is no interference.
LED2
ON: Signal is slightly instable, which occurs when motor accelerates/decelerates
or interference during signal input is not completely ltered (The number of
interference pulses that are not ltered is less than 10 per time unit).
LED2
Flash slowly: Signal is moderately instable, which occurs when motor accelerates/
decelerates or interference during signal input is not completely ltered (The
number of interference pulses that are not ltered is less than 30 per time unit).
LED2
Flash quickly: Signal is seriously instable, which occurs when motor accelerates/
decelerates or interference during signal input is not completely ltered (The
number of interference pulses that are not ltered is more than 30 per time unit).
LED3
Inter-lock
state indicator
LED3
OFF: Inter-lock disabled.
LED3
ON: Inter-lock enabled.
LED4
System state
indicator
LED4
OFF: The system is not operating or abnormal.
LED4
Flash: The encoder cable breaks.
LED4
ON: Normal.