Okuma Alarm-P 0813 MCS Communication error
When the power was supplied, an error occurred in communication with MCS.
If servo link information is displayed at the center of the screen, judge the cause by taking into consideration the message in the servo link information.
[command name]-[channel No.]-network address (controller No.)
1…The NC received the data that the NC had broadcasted.
2…Data is received from a station other than the slave station that broadcasted the data.
3…The received data size is 2 bytes or less.
4…Data is received from a station other than the slave station that sent the date.
5…The NC received the data that the NC had transmitted in a way other than broadcasting.
6…Data is received from a the station of which network address is 0.
7…Data reception response is not sent within 1 or 0.1 second after data transmission.
‘SI’ command is specified before at least one MCS is normally activated in the link or before the power is supplied. Open the box and check the LEDs of all the MCS units connected to the error-caused channel.
Normal units are indicated with ’22’.
8…Data transmission does not end within 0.1 second.
9…Communication error occurred after reception of data.
A…Communication error occurred while the NC was waiting for data reception or immediately after data transmission.
B…Communication error occurred while the NC was waiting for data transmission.
C…Data transmission was attempted during data transmission.
D…Data transmission was attempted in the state of communication error.
E…An error command was received.
[Refer to the shake-hand communication error list (5-10) in external specification for MCS controller function.]
100…The received first 2 bytes are improper as a response to the transmitted data.
101…The received data size is improper as a response to the transmitted data.High-order digits of YYYY is the received data size while the low-order half is a normal value.
102…Data No. 1 attached to the received data is improper.
SI command: slave station connection No.
AS command: slave station connection No.
ID command: communication code + auxiliary code
103…Data No. 2 attached to the received data is improper.
SI command: cumulative relay time
ID command: data ID
104…Data No. 3 attached to the received data is improper.
ID command: reserved
105…Data No. 4 attached to the received data is improper.
ID command: ID data (4 bytes or less)
106…Data No. 5 attached to the received data is improper.
SI command: The number of controllers
ID command: ID data (8 bytes)
200…Data sizes differ from those specified with ID numbers.
Probable Faulty Locations
– Inverter unit (Check the LED of the inverter unit.)
– FCP board
– MCS connection error
– MCS connection cable is faulty
– Faulty software