Toshiba E6581830 instruction manual How to check the error using the LEDs, Cpu

E658130

7.3.How to check the error using the LEDs

The following example explains the causes of fault which may be judged from the LED status of the CC-Link unit (CCL003Z) of the inverter.

1. When One Inverter Is Connected

The following example indicates the causes of faults which may be judged from the LED status of the CC-Link unit (CCL003Z) of the inverter under the condition that the SW, M/S and PRM LEDs of the master unit are off (the master unit setting is correct) in the system configuration where one inverter is connected.

P

S CPU

Master

Unit

Station

1

inverter

PS: Power supply

	LED Status			Cause	Corrective Action
L.RUN	SD	RD	L.ERR
				Normal communication is	Check that the communication cable is
				made but CRC error has	connected to SLD.
				occurred due to noise.	Also wire it as far away as possible from
●	●	●	◎		the power lines.(200mm or more)
				Baud rate or station number	After correcting the baud rate and/ir
				was changed during	station number setting, switch power on
				operation.	again.
●	●	●	○	Normal communication	-
				Cannot answer due to CRC	Check that the communication cable is
●	○	●	◎	error of receive data.	connected to SLD.
					Also wire it as far away as possible from
					the power lines.(200mm or more)
				Data sent to the host station	Check the network transmission setting
●	○	●	○	does not reach destination.	and the sequence program on the PLC
					side.
				Hardware fault	Check for contact fault, break in the cable,
				(There is a possibility of the	etc.
●	○	○	○	instability of the
				communication by the
				disconnection.)
				Polling response is made but	Check that the communication cable is
○	●	●	◎	refresh receive is in CRC	connected to SLD.
				error.	Also wire it as far away as possible from
					the power lines.(200mm or more)
				Data sent to the host station	Check that the communication cable is
○	○	●	◎	is in CRC error.	connected to SLD.
					Also wire it as far away as possible from
					the power lines.(200mm or more)
				There is no data sent to the	Check that the communication cable is
○	○	●	○	host station, or data sent to	connected to SLD.
				the host station cannot be	Also wire it as far away as possible from
				received due to noise.	the power lines.(200mm or more)
				Cannot receive data due to	Check for contact fault, break in the cable,
				break in the cable, etc.	etc.
○	○	○	○	WDT error occurrence	Check that CCL003Z is fitted properly.
				(hardware fault), power off,
				power supply failure
				●:On, ○:OFF, ◎:Flicker, ＊: Any of on, flicker or off.
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