
E658130
3.Communication stops during operation
▪Check that the
▪Check that the PLC program is executed properly.
▪Check that data communication has not stopped due to an instantaneous power failure, etc.
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| Cause | Corrective Action | |
Master |
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| CCL003Z |
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Station 1 |
| Station 2 |
| Station 3 |
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| L.RUN | ○ | L.RUN | ● | L.RUN | ○ | The station numbers of | After correcting the | |
| SD | * | SD | ● | SD | * | station 1 and 3 are | repeated station | |
| RD | ● | RD | ● | RD | ● | duplicated. | numbers of the inverters, | |
| L.ERR | ○ | L.ERR | ○ | L.ERR | ○ |
| switch power on again. | |
TIME○ |
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L.RUN | ● | L.RUN | ○ | L.RUN | ● | The baud rate setting of | After correcting the Baud | ||
LINE○ | |||||||||
SD | ● | SD | ○ | SD | ● | station 2 is different | rate setting, switch | ||
or | RD | ● | RD | ● | RD | ● | from master unit. | power on again. | |
TIME● | |||||||||
L.ERR | ○ | L.ERR | ○ | L.ERR | ○ |
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LINE○ |
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L.RUN | ● | L.RUN | ● | L.RUN | ● | The setting data of | After returning the setting | ||
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| SD | ● | SD | ● | SD | ● | station 3 was changed | switch to the correct | |
| RD | ● | RD | ● | RD | ● | during normal | position, power on the | |
| L.ERR | ○ | L.ERR | ○ | L.ERR | ◎ | operation. | inverter again. | |
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| L.RUN | ● | L.RUN | ● | L.RUN | ● | Station 2 is affected by | Securely connection FG | |
| SD | ● | SD | ● | SD | ● | noise. (L.RUN may put | of each inverter and | |
| RD | ● | RD | ● | RD | ● | out the light.) | master to ground. | |
| L.ERR | ○ | L.ERR | ● | L.ERR | ○ |
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TIME● | L.RUN | ● | L.RUN | ● | L.RUN | ● | the communication | Check that the | |
SD | ● | SD | ● | SD | ● | cable between the | communication cable is | ||
LINE● | inverters of stations 2 | connected to SLD. | |||||||
RD | ● | RD | ● | RD | ● | and 3 are affected by | Also wire it as far away | ||
or | |||||||||
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| noise. (L.RUN may put | as possible from the | ||
TIME○ |
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L.ERR | ○ | L.ERR | ● | L.ERR | ● | out the light.) | power lines.(200mm or | ||
LINE● | |||||||||
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| L.RUN | ● | L.RUN | ● | L.RUN | ● | Terminal resistors are | Check that the terminal | |
| SD | ● | SD | ● | SD | ● | left | resistors are connected. | |
| RD | ● | RD | ● | RD | ● |
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| L.ERR | ○ | L.ERR | ○ | L.ERR | ● | the light.) |
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●:On, ○:OFF, ◎:Flicker, *: Any of on, flicker or off.